About Experts Sitemap - Group 46 - Page 79 2014-09-16

Science for Kids: evolution of a cat, earth science class, cat evolution
earth science class, cat evolution, evolutionary timeline: Hi savannah -- you can find lots of articles about this on Google, just search: cat evolution And you ll find some confusion, of course! In 1983 cats were classified into 4 major groups by R.M.Nowak and J.L.Paradiso. However in 1993, W.C Wozencraft re-classified...

Science for Kids: Formul;as, magnetic field intensity, inertia 2
magnetic field intensity, inertia 2, moment of inertia: You can look these up easily in reference books at your local library or in online references. I don t do homework questions. For instance, Googling finds lots of pages like these http://www.physics.uoguelph.ca/tutorials/torque/Q.torque.inertia.html...

Science for Kids: Freshwater & Saltwater, dead sea salt, nova scotia canada
dead sea salt, nova scotia canada, salinization: Suki, Most saltwater lakes have no outlet. In such cases, the evaporation of the water in the lake leads to the slow salinization of the lake. Many soils have salts in them and when it rains, these salts disolve and then flow into the creeks and rivers...

Science for Kids: friction, friction, ramp
Science for Kids: friction, friction, ramp, cracks

Science for Kids: making an artificial arm, coat hanger, water jug
Science for Kids: making an artificial arm, coat hanger, water jug, milk jug

Science for Kids: Nitrogen fixation, nature publishing group, rock layers
Science for Kids: Nitrogen fixation, nature publishing group, rock layers, nature journal

Science for Kids: Protein Digestion, buffer solutions, gelatin
Science for Kids: Protein Digestion, buffer solutions, gelatin

Science for Kids: Saltwater evaporation, clear water, evaporation
Science for Kids: Saltwater evaporation, clear water, evaporation, salt water

Science for Kids: science fair project, mechanical mixture, nearby store
Science for Kids: science fair project, mechanical mixture, nearby store, grade 6

Science for Kids: testing carbonation in soda, sodas, balloon
Science for Kids: testing carbonation in soda, sodas, balloon, explosion

Science for Kids: Yeast experiment, baking soda, chemical reaction
Science for Kids: Yeast experiment, baking soda, chemical reaction, vinegar

Science for Kids: friction, shoe soles, paw pads
shoe soles, paw pads, rough surfaces: Hi again Connor -- Somewhere in the middle, because like you said, too much friction would slow you down. It s not so bad with feet, but with a wheel too much friction really wastes energy (your feet are not always touching the ground, the wheel is). Think...

Science for Kids: help por favor!!!!, atomic bonds, strange properties
atomic bonds, strange properties, science fair project: Hola Lauren. It s a pretty good topic actually....lots of places you can go with your experiments. What happens to liquids when they get cold or hot? They freeze and turn solid when cold, and evaporate and turn to gas when hot. Some liquids get more and...

Science for Kids: ice thawing rate, kindergarten science, science projects for kids
kindergarten science, science projects for kids, water molecules: Hi Jordan -- now I understand. Both will thaw at exactly the same rate, because the heating earlier didn t do anything to change the composition of the water. However---distilled water or boiled water will thaw a tiny bit faster than tap water, becuase by...

Science for Kids: indium, element thallium, gottingen germany
element thallium, gottingen germany, mining university: Hi Indya, There is very little information on these two scientists. The lead researcher, Ferdinand Reich was colorblind and required the assistance of HT Richter in the use of a spectroscope. This device looks at chemicals and produces a spectrum of the...

Science for Kids: light bulb experiment, steve spangler science, touch sensitive switches
steve spangler science, touch sensitive switches, sensor electrodes: Hi Nicholas -- do you mean the commercial Energy Ball product, at Steve Spangler Science? If so -- probably, but the connection gets worse every time you add another person in the line. It would be a fairly simple electronics project to build your own, if...

Science for Kids: Milk: In vivo and in vitro, acidity and alkalinity, salt concentration
acidity and alkalinity, salt concentration, dairy technology: I can help you a little bit, but, will also steer you to some other experts. Cooperative Extension 4-H, and area farmers may be able to help. Also, a veterinarian would be a good source. But, let s see what we can find on line... Try this article: (1950)International...

Science for Kids: Mini Pepsi Cans, pepsi cans, carbonation
pepsi cans, carbonation, pepsi: Hi Cora, It is all about density. The mini Pepsi cans are less dense then water. This means that they are filled with air or CO2 (Carbonation). Have you noticed that the Pepsi in these cans is a lot more fizzy? There is also more space in the can for the...

Science for Kids: making an artificial arm, erector set, toy science
erector set, toy science, piece of candy: Hello Ty -- that s a rough one. In short, you ll need a whole a bunch of servo motors and the mechanical parts to make them move the arm. I would start with examining really closely the different toy science project robotic arms that are already out there,...

Science for Kids: mirrors, roman times, ponds
roman times, ponds, hanna: You can research mirrors online. Start with Wikipedia. If you have specific questions about mirrors, please ask. Did you know that the earliest mirrors were still ponds? In classical Greek and Roman times, they used a polished disk of bronze as a mirror...

Science for Kids: moon and gravity, strength magnets, planet surfaces
strength magnets, planet surfaces, gravity on the moon: Here are some sites that might help you. You can copy them and paste them into your search engine bar. http://www-istp.gsfc.nasa.gov/stargaze/Smoon.htm http://science.nasa.gov/headlines/y2004/06may_lunarranging.htm http://science.nasa.gov/headlines/y2006/17jan_jack.htm...

Science for Kids: Nitrogen fixation, http www youtube, nitrogen fixation
http www youtube, nitrogen fixation, uk research groups: It is hard to tell how technical an answer you would like. I will try to provide you with links at different levels. This program only let s me type text. That is why I put the links. You might want to look at the roots on a legume and see the nodules...

Science for Kids: I need help finding a science project, science project, money issues
science project, money issues, magnets: Hi Raven, If you answer these questions, then I can help you a lot better: 1) do you like plants? 2) do you like Chemistry? 3) do you like electricity (batter powered)? 4) do you like talking to other people? 5) do you like magnets? Also tell...

Science for Kids: need help in science, bottling company, sodas
bottling company, sodas, coke: Hi Stephanie, Fizz and carbonation is one and the same. Which one has more? That is a very difficult question to answer. The reason is that each bottling company and in each location will add a different amount of carbonation based on the water it uses...

Science for Kids: Project about taste and control groups, blind taste test, preferred taste
blind taste test, preferred taste, school adults: Hi Mary Beth, She does not have a control group. A control group would be one that is given a product that has neither butter or margerine for a base line flavor. But how she has this structured is a bit wrong. She should have it set up so that group...

Science for Kids: Protein Digestion, gelatin powder, digestion of proteins
gelatin powder, digestion of proteins, protein digestion: Hi S, For the blank or control you will need to do two tests in the spectrophotometer 1) with water only 2) with biuret solution This way you will have a reading with and with out the solution so that when you do your other tests you can subtract...

Science for Kids: pediatrician, becoming a pediatrician, pediactrics
becoming a pediatrician, pediactrics, med degree: Hi Mackenzie. Normally with google, you have to get your search terms just right. But sometimes you can just ask it a question! I typed in: I want to be a pediatrician And got a ton of useful information. Go ahead and try it! This site, however, like most...

Science for Kids: poisonus plants, poisonus plants, poisonous plants
poisonus plants, poisonous plants, measure results: What questions do you have? What kind of poisonous plants? Poisonous if you eat even a little bit (like toadstools), poisonous if you touch them (poison ivy), poisonous if you eat a lot (liquor), poisonous to dogs but not people (chocolate), poisonous...

Science for Kids: a question, female hormones, dancers
female hormones, dancers, bones: Hi Greg, Nothing anatomically. They have the same number of bones and toes and function in the same way. Where a difference may occur is that females mature at an earlier point in life and as a result their bones ossify earlier. This results in somewhat...

Science for Kids: a question, behavioral scientists, combination of the two
behavioral scientists, combination of the two, do the right thing: Hi Greg -- this is a hard question to answer. Many behavioral scientists (and parents!) believe different things. But, the general consensus is that if you only punish children, you can cause many behavioral disorders both immediately and later in life. If...

Science for Kids: Saltwater evaporation, salt ions, water molecules
salt ions, water molecules, moving in the right direction: Hi Stephanie -=- Evaporation of water happens because the molecules in water are crashing around in there, banging into each other. They are also highly attracted to each other. Some of these collisions can add enough energy to some water molecules that they...

Science for Kids: Science, lawnchair larry, helium balloon
lawnchair larry, helium balloon, bouyancy: Hi Lee - gravity is trying to pull the balloon down. However, Helium is lighter than nitrogen, which is 80% of the atmosphere. So, the balloon and it s helium contents weigh less than the volume of air that they displace....it floats, the same way a boat...

Science for Kids: Science Fair Project, scotch brand tape, colored frosting
scotch brand tape, colored frosting, cake frosting: You don t need to measure how much copper dissolves off a penny - just look at the color of it. Get a bunch of rusty dark brown pennies and see how long it takes them to turn shiny, as the rust is eaten away. Or get a bunch of quarters or dimes which have...

Science for Kids: Science Fair Project: Evaporation, pop soda, soda pop
pop soda, soda pop, interesting science: Which will evaporate: milk or soda? So, for science fair, you are the scientist! What an interesting science fair project question. Your first step is to make a, Hypothesis. The hypothesis is easy. It is your guess at the answer. So which do you...

Science for Kids: Science Fair project on Sttain Removal, organic molecules, science fair project
organic molecules, science fair project, stain removal: Hi Taylor. Detergents and soaps are surfactants , where one side of the molecule is attracted to water and the other side is repelled. They tend to surround dirt and grease molecules, allowing water to wash the dirt and stains away. Detergents also often...

Science for Kids: Science project paper, reasearch paper, surface applications
reasearch paper, surface applications, wood fiber: Hi Konalon, There are different kinds of wood sealers but most work to fill the pores in the wood and the harden. These are generally some type of acrylic mixed in a solvent or a laquer based mixture which works the same way. Some allow the acrylic...

Science for Kids: Sound, hearing damage, audiograms
hearing damage, audiograms, audible range: Hi Erin --no, and it also varies with age and hearing damage. A healthy young adult can usually hear in the frequencies of around 15-20,000 hz. Their ears will still be less sensitive to the highest frequencies, though. By middle age, most adults can t hear...

Science for Kids: science, science question, answerbag
science question, answerbag, question index: Here are some links, with contradictory answers. http://www.blurtit.com/q822352.html http://answers.yahoo.com/question/index?qid=20071209055832AAqHKaW http://www.newton.dep.anl.gov/askasci/gen06/gen06267.htm http://www.answerbag.com/q_view/51176...

Science for Kids: science, diet pop, science question
diet pop, science question, carbonation: Hi HK, Carbon Dioxide or Carbonation is a gas that is forced into the soft drink (like Coke or Pepsi) to create the fizz. Since the gas is forced into the liquid under pressure and the container is sealed immediately after the injection of the gas, the...

Science for Kids: science experiment with eggs, defraction of light, light refraction
defraction of light, light refraction, high school science: Hi Matthew This is actually an optical illusion casued in part by defraction of light thru the water. The egg is covered with soot (carbon black) and when put into water creates a bubble of air around the egg which makes it look clear and the light refraction...

Science for Kids: science fair - electric eels, science fair project, electric eel
science fair project, electric eel, 9v batteries: Hello Karen. A very interesting animal, and possibly a tremendous science project! The answer to your son s question is that the electric charge that the eel generates dissipates quickly with distance in water, and especially in fresh water where electric...

Science for Kids: science fair - fruit and ethylene gas, horned melon, ethylene gas
horned melon, ethylene gas, scholarly journals: Great question. I am glad you tried the experiment first. I have a question to ask you. Did you have more than one replicate of each type of fruit? If not, that might show you why you have more than one copy. The judges should like that you recognize...

Science for Kids: science fair project, double boiler, teperature
double boiler, teperature, cup measure: Hi Mariah, I would think that it would loose carbonation very fast at both ends of the temperature range. If you freeze soda, the carbonation comes out of solution rather quickly and when it reaches up over 100 degrees it will also start loosing carbonation...

Science for Kids: science fair project, lego mindstorm robot, mixtures and solutions
lego mindstorm robot, mixtures and solutions, metal aluminum: Hi Alexiss, How about a combination of the two. Magnets and mixtures? You can make a mixture of bits of metal, aluminum, copper, and steel. Then you can find ways to separate them. The first step is to use a magnet to remove the steel, then because...

Science for Kids: science fair project research=organic and inorganic stains, organic molecules, inorganic stains
organic molecules, inorganic stains, living organisms: Organic means it involves complicated molecules containing carbon, like you usually find in living organisms. An organic stain can mean a stain used to stain organic stuff, like human tissue, or it can also mean a stain containing organic molecules...

Science for Kids: science fair projects, heavy metal poisoning, good science fair project
heavy metal poisoning, good science fair project, science fair project idea: Hi Megan, Since you seem to have had a wining idea last year, why not expand upon it and look at saliva, perhaps human, as an indicator of illnesses. There is some very interesting work being done in this field right now and they think that they can...

Science for Kids: solar power, science progect, daylight hours
science progect, daylight hours, solar power: Hi Autumn, The pros: Free energy, relatively low cost and with proper care can last many years The Cons: can be expensive to install, provides power only during daylight hours and use a lot of energy to produce but this is changing rapidly where some of...

Science for Kids: solar power, purpose power, flowing water
purpose power, flowing water, hydropower: Hi Autumn, Solar power uses a special kind of crystal which takes light and converts it into electricity. This can be used right away or stored in batteries for other times. It can also be sold to the power companies if you don t need all you produce. ...

Science for Kids: THAWING ICE con't, florecent, follow ups
florecent, follow ups, boiled water: Hi Jordan, IR is infared Radiation. It is part of the spectrum of light like a rainbow. In a rainbow, we can see the colors that make up the visible parts of light but there are others that we can not see. On the opposite end of the rain bow from Infared...

Science for Kids: THAWING ICE, home freezer, walk in freezer
home freezer, walk in freezer, cold location: OK. Now I understand the question. This is a complicated question with no simple answer. It has to do with the amount of air that is trapped inside the water when it freezes. If you have the same amount of trapped air, it doesn t make a bit of difference...

Science for Kids: How temperature impacts helium, liquid helium, solid materials
liquid helium, solid materials, science fair project: Hi Coupe, Helium is a very light gas. The Helium molecule is very small, only Hydrogen is smaller. Temperature can effect the gas in many ways. If it is cold enough you can actually turn helium into liquid helium! On the other hand you can take helium...

Science for Kids: testing carbonation in soda, liter soda bottles, carbonation in soda
liter soda bottles, carbonation in soda, eyeball: Get a bunch of two-liter soda bottles. Make sure they are all at the same temperature. Get a bunch of identical balloons. Open a bottle and quickly put a balloon over the top. Shake the bottle to inflate the balloon. You can eyeball the size of the balloon,...

Science for Kids: Virtual Hamster - Learning Fair Question, rare earth magnets, virtual hamster
rare earth magnets, virtual hamster, magic wand: Hi Kristin -- Ah yes, you ve discovered a law of physics that most people think doesn t apply to magnets, the Conservation of Energy. However it does apply as you found out....to transfer energy with a magnet, you have to MOVE the magnet; that s where the...

Science for Kids: Water temperature and bubbles., vocabulary word, bubble solution
vocabulary word, bubble solution, science fair project: Hmmmm! That is the beauty of the science fair: You are the scientist. You did the experiment. You saw the results. Now, the discussion and conclusions part are for your ideas, opinions, suggestions, additional questions that formed as a result (like the...

Science for Kids: WHICH THAWS FASTER?, walk in freezer, frame difference
walk in freezer, frame difference, degree water: Hi Jordan, As I suspected, since you used boiled water, the water was effectively degassed so was much more dense thus causing it to thaw much more slowly. With refrozen water, it re-absorbs the gasses as it melts so it should have been very much like the...

Science for Kids: Yeast experiment, baking soda vinegar, baking soda and vinegar
baking soda vinegar, baking soda and vinegar, yeast experiment: Ahhhhh! OK, I understand now. You were kind of mixing up your reactions in these experiments. There are 2 different main reactions in these kind of experiments that produce Carbon Dioxide (CO2): 1) baking soda and vinegar, and 2) fermentation (yeast eating...

Science for Kids: Yeast experiment, baking soda vinegar, yeast experiment
baking soda vinegar, yeast experiment, vinegar and salt: Hi Janee, The vinegar took longer to react with the baking soda then the yeast with the sugar. Vinegar, an acid and baking soda, a base will produce a great deal of carbon dioxide gas when mixed in a test tube. In a situation with dough,it simply takes...

Science for Kids: Aerodynamics, egg drops, egg drop
egg drops, egg drop, science project: High school egg drops are for usually 10 meters or so. At these small distances, the egg doesn t build up a lot of speed. So the aerodynamic and drag effects are usually negligible. However, if the package you drop is odd-shaped, then drag/aero effects...

Science for Kids: Amoeba`s function, food particle, fatty cells
food particle, fatty cells, animal matter: Hi Shea. Amoebas serve the essential function of breaking down bacteria and decomposing plant and animal matter into the nutrients needed for plant growth. Organisms that do this are the most common in the natural world. Without them, plants couldn t grow!...

Science for Kids: Amoebas & Animals & Plants, microscopic plants, animals and plants
microscopic plants, animals and plants, tiny animals: Hi Linda, That s a great question. Sometimes, things can be both harmful and helpful. Amoebas are one such organism. Amoebas can be harmful to plants because: many amoebas they eat microscopic plants Amoebas can be harmful to humans because: many...

Science for Kids: How not to break an egg or crack it from a height of 15 metres, open cell foam, closed cell foam
open cell foam, closed cell foam, egg drop: Hi! I get lots of egg drop questions. Below is the best way to go about the experiment. DAN ----- The best materials to use for the egg drop are layers of foam in differing densities. The tricks for the egg drop are to 1) distribute the force of...

Science for Kids: burning fuels, combustion reaction, sodium metal
combustion reaction, sodium metal, science homework: Hi Alex -- burning is properly called combustion. It s a complex chemical reaction, but it needs a combination of a fuel and an oxidizer. Usually here on Earth, the oxidizer is oxygen gas (though in a contained reaction, like in rocket fuel, it might be...

Science for Kids: Capacity vs. displacement, soda bottle, graduated cylinder
soda bottle, graduated cylinder, waterline: Hi K Capacity is the amount of something that another substance can hold. For example, a 2 liter bottle of soda has a two liter capacity (it can hold 2 liters of liquid). Or, water has the capacity to hold onto so much salt before it becomes overloaded...

Science for Kids: Compounds, acetone nail polish remover, nail polish remover
acetone nail polish remover, nail polish remover, polyvinyl acetate: Hi Quinn, Compounds are substances that consist of two or more elements that are joined together through electon bonds. There are both ionic and covalent compounds. Compounds cannot be split apart into their individual elements. Some examples are:...

Science for Kids: chemistry, aluminum sulfate hydrate, iron bromide
aluminum sulfate hydrate, iron bromide, arsenic acid: Hi Kohi, Potassium Hydroxide - KOH Nitric Acid (I think) - HNO3 Iron Bromide(III) - FeBr3 Aluminum Sulfate (hydrate) - Al2(SO4)3.18H2O Magnesium Nitrate (dihydrate) - Mg(NO3)2.2H20 Carbon Monoxide - CO Arsenic Hydroxide (Arsenic Acid) - HAso3 Ammonium...

Science for Kids: conduction, cold currents, warm currents
cold currents, warm currents, landscape materials: Hi Jeffrey. Nope -- though your logic in asking the follow-up question is excellent. Which material you choose for landscaping affects only the warming of your LOCAL climate. Just like the difference when you walk from the stifling heat in the center of the...

Science for Kids: The Egg Drop Science Fair Project, egg drop, drop science
egg drop, drop science, air resistance: Hi Breanna, During egg drop experiments, people usually design a packaging for an egg , place the egg in the packaging, and drop it from a certain height. The goal is to wind up with an unbroken egg! You want to think about a few things: 1) Can...

Science for Kids: how to make an egg drop, plastic soda bottle, classic experiment
plastic soda bottle, classic experiment, pig tail: Hi Chelsea, This is a classic experiment. The idea is to drop an egg in a package from some height and the egg does not break. Take the egg and wrap it tightly in the paper. Make sure that there is enough paper on top and bottom to twist the paper...

Science for Kids: egg dropping, foot flagpole, open cell foam
foot flagpole, open cell foam, closed cell foam: Hi Corie -- most egg drop contests are set up so you have to design a box, which falls fast with the egg inside. If your goal is to slow down the egg, a parachute should do the trick. You ll just need a plastic garbage bag, some string and some tape! ...

Science for Kids: the element thallium, element thallium, google
element thallium, google, science project: Sally- Go to www.wikipedia.com and look up the article on thallium. It has LOTS of information. And go to http://www.webelements.com/ This one is good, too http://www.chemicalelements.com/ Thallium is poisonous. The government site below talks...

Science for Kids: enamel erosion from sports drinks, sports drinks, calcium carbonate
sports drinks, calcium carbonate, erosion: Nope. The erosion is due to the fluid in the mouth being acidic. To stop erosion, you d need to neutralize the fluid, rather than try to replace the calcium after the fact. You could add a base to the Gatorade before drinking it to neutralize the drink....

Science for Kids: evaporation, coffee crystals, coffee companies
coffee crystals, coffee companies, coffee taste: Hi Zerea -- You could just leave it out on a flat plate or dish to evaporate (the more surface and higher the temperature, the faster the water will evaporate)--however it would take a long time and the coffee would likely get moldy. The quickest method...

Science for Kids: Science Fair Project, zinc plates, potato starch
Science for Kids: Science Fair Project, zinc plates, potato starch, chemistry class

Science for Kids: Soda Carbonation, paine, molly
Science for Kids: Soda Carbonation, paine, molly, fish tank

Science for Kids: Sugar crystale and Salt crystales, salt crystals, sugar crystals
Science for Kids: Sugar crystale and Salt crystales, salt crystals, sugar crystals, sucrose molecule

Science for Kids: science, warm liquids, water sinks
Science for Kids: science, warm liquids, water sinks, lava lamp

Science for Kids: variables in science, controlled variables, seed pot
Science for Kids: variables in science, controlled variables, seed pot, soil seed

Science for Kids: flying turbines, sound physics, gee whiz
sound physics, gee whiz, physics engineering: Hi Dave -- I follow ALL aspects of the wind turbine industry closely, since I am a wind power author, teacher, and lecturer. My new book Homebrew Wind Power is due out in a couple months! I would be happy to discuss such projects, you can contact me through...

Science for Kids: friction, untouched snow, snowy hill
untouched snow, snowy hill, tiny area: Hi Brandy -- Friction slows any object down, converting part of its kinetic energy into heat. What happens on icy surfaces is what makes ice skating, runner sleds, the luge and bobsled, (but NOT toboggans), possible! The extra heat from friction melts...

Science for Kids: The Golfball Challenge, science class, mouse trap
science class, mouse trap, rubber band: Hi Inayah -- I think I answered one of your questions a few days ago about the tracks for this project. You can certainly launch the golf ball with a rubber band -- hold the rubber band between thumb and pinky, pull back the golf ball, and there you go....

Science for Kids: The Golfball Challenge, wooden dowels, triangle formation
wooden dowels, triangle formation, vinyl tubing: Hi Natalina -- I m racking my brain on this one. I think your best bet is to reduce friction as much as possible, so there are fewer losses as the ball rolls. So, a hard track is preferable. I would say, use 3 wooden dowels in a triangle formation for the...

Science for Kids: hygroponics, plant plants, aquaponics
plant plants, aquaponics, salvinia: Hi Deqi Good questions. Let me take them one by one. 1) While you can germinate a plant with no nutrients (because seeds start off with nutrients inside), once the cotelydon gets used up, you will need some nutrients for your plant. Plants mostly...

Science for Kids: Ice and Water, radiant heat, deg c
radiant heat, deg c, light bulb: Hi Laura -- as soon as the air around it or the surface it s sitting on get above 32 deg F (0 deg C) it will start to melt. That s assuming it s in the dark, though, as radiant heat from the sun or a light bulb could cause the ice cube to absorb heat on its...

Science for Kids: Light Bulbs, halogen light bulbs, phosphor coating
halogen light bulbs, phosphor coating, glass globes: Hi Paola -- You ll probably have to revise your project idea a bit. Good that you haven t started yet. Incandescent and halogen light bulbs have a tiny point source of light inside (a filament that glows white hot), and the glass is really just to keep...

Science for Kids: Measuring Carbonation, science experiment, measuring cup
science experiment, measuring cup, water line: Hi Ian, WIth a can of soda, take a basin of water and invert a measuring cup in the basin. Make sure that the measuring cup is filled with water and elevate the cup so that the mouth of the cup us only 1 below the water line. Take a can of soda, shake...

Science for Kids: magnetosphere, van allen belts, van allen belt
van allen belts, van allen belt, magnetosphere: I assume you are asking about the Earth s magnetosphere. The earth is a sphere, which means it s round. The magnetosphere is rounded, and wraps around the earth like a big blanket. The solar wind pushes on the magnetosphere so it s not round, but shaped...

Science for Kids: multiple chain of motors, shape measurements, copper coil
shape measurements, copper coil, coil wire: Hi Rony. Most of the answers to your questions depend on what exactly you are trying to accomplish with this design. You don t explain this, so I m at a bit a loss to try and help. 1) now that I have changed my invention concept with the principles of the...

Science for Kids: multiple chain of motors, shape measurements, copper coil
shape measurements, copper coil, coil wire: Hi Rony, A motor required power input like electricity to make the core turn. On the other hand, you can generate power by turning the core inside of the magnets. So, as a motor, the power requirement would be rather excessive in this design but as...

Science for Kids: i need to know now !!!!!!!!!!!!!!!!!!!!!!!!!!!!! please, water striders, surface molecules
water striders, surface molecules, elastic sheet: Hi Cait -- Consider the water molecules in a glass of water. Most of them are being pulled at equally by all their neighbors. But the molecules at the surface of the water don t have any neighbors on that side -- so the surface molecules pull tightly at each...

Science for Kids: oscillating water column, oscillating water column, air presure
oscillating water column, air presure, air density: Hi Kari --- The good news is, I think the experiment will certainly work. That bad news is, I don t think you ll be able to get enough air flow to spin a hobby motor or make any electricity from it. The reason is the math involved in extracting energy...

Science for Kids: oxidizing, exothermic reaction, summat
exothermic reaction, summat, entire room: Hi Narcissa --No, oxidation is a chemical reaction where something combines with oxygen, and releases heat (an exothermic reaction). Examples would be fire, or rust. What you are thinking of (I think) is called flashover, where in a house fire all the...

Science for Kids: phisics, alcohol dehydration, bird specimens
alcohol dehydration, bird specimens, rubbing alcohol: Either type of alcohol will allow you to do the experiment. Rubbing alcohol dehydrates things very well. Be careful - do NOT drink it. Rubbing alcohol smells bad, and the fumes can give you a headache. So make sure to put a tight lid on the container so...

Science for Kids: protons, electrons, & neutrons, protons electrons neutrons, protons and neutrons
protons electrons neutrons, protons and neutrons, number of neutrons: You can find this information on the periodic table. The number of protons is the Atomic Number, the big number in the box. The atomic weight is the sum of protons plus neutrons, so you subtract the Atomic Number from the Atomic Weight. Round off to get...

Science for Kids: Science Fair - 6th grade, fingerprint patterns, 6th grader
fingerprint patterns, 6th grader, science fair project: Hi Jordan, Thanks. Unfortunately I have no idea how long your paper needs to be - you should ask your teacher. Is it a paper about your experiment or is it about fingerprints in general? Either way, the first thing you should do is find some background...

Science for Kids: Science Fair Project, battery potato lemon
battery potato lemon: Hi Grant. I confess that at age 41 I still make potato batteries. My record is a 12 volt one using 30 potatoes that was able to run a flashlight! My standard veggie battery tips: -the more acid in the veggie, the more power you can get, but the shorter...

Science for Kids: Science Fair Project, zinc strip, zinc strips
zinc strip, zinc strips, copper strip: Hi Grant, This is a fairly easy experiment to demonstrate but since this is for a science fair project, you need to do a real experiment. One such may be: which produces more electricity a potatoe, lemon, orange or glass of windex glass cleaner. For this...

Science for Kids: Science Fair project, alcohol concentration, liquid alcohol
alcohol concentration, liquid alcohol, beermaking supplies: You can buy a hydrometer which measures the density of the a liquid. Alcohol and water have different densities. Most hydrometers will directly read alcohol concentration. You can buy them on the internet, or at stores that sell winemaking or beermaking...

Science for Kids: Science fair, science fair project, tooth enamel
science fair project, tooth enamel, false teeth: Hi Sam -- it s pretty tough to find real teeth! It is also somewhat dangerous, you MUST be sure to sterilize the teeth thoroughly -- soak them in a strong bleach and water solution for a few hours. You can try contacting dentists, explain your intention,...

Science for Kids: Soda Carbonation, soda bottle, science fair project
soda bottle, science fair project, measuring cup: Hi Celestine, Warm soda looses its carbonation faster then cold. If you take a big basin of water and place into the basin a 2 cup measuring cup filled with water and upside down. Place the mouth of the soda bottle under the cup so that when you open the...

Science for Kids: Stain Removal, organic stains, homemade remedies
organic stains, homemade remedies, stain removal: Hi Elizabeth, There are lots of things that get out stains. You can find a lot of information on the internet by going to www.google.com and put in stain removal. Also the magazine Family Circle (also on line) has a list of stain removal techniques that...

Science for Kids: Sugar crystale and Salt crystales, hexagonal crystal structure, cubic crystal structure
hexagonal crystal structure, cubic crystal structure, salt crystals: Yes, there is a huge difference. Salt crystals taste salty and sugar crystals taste sweet. If you get them mixed up when you bake a cake, the cake tastes terrible! But seriously, sugar has a hexagonal crystal structure, while salt has a cubic crystal...

Science for Kids: Sugarless Gum, sciene project, artificial sweeteners
sciene project, artificial sweeteners, microencapsulation: Hi Carmel, Some artificial sweeteners do not disolve as fast in the mouth as sugars do. There is also some technologies called microencapsulation which keeps the sweetener from disolving at its normal speed. So these gums appear to stay sweeter longer...

Science for Kids: science, radiation heat transfer, energy radiation
radiation heat transfer, energy radiation, energy from the sun: Solar energy (mostly heat and light) radiates from the sun to the earth (show this as an arrow from the sun to the earth). Some of it gets reflected back into space (show an arrow bouncing back off the earth toward the sun, or pointing off at a funny angle)....

Science for Kids: science, calcium magnesium, growth of plants
calcium magnesium, growth of plants, fertilzer: Hi Nancy, Fertilizer contains minerals and nutrients that plants need in order to grow. While many fertilizers are similar, each fertilizer has a different amount of these minerals and nutrients. Some fertilizers may only have a few minerals, while others...

Science for Kids: science, conduction convection and radiation, examples of conduction convection
conduction convection and radiation, examples of conduction convection, examples of conduction: Hi Zora, Conduction: Pour hot water into a tea cup and feel the heat conducting through the tea cup. This is conduction. You can also feel the cold when you have a glass of ice water and the cold comes through the glass. Convection: This is a little...

Science for Kids: science experiment with food acids, independent science project, salt acts
independent science project, salt acts, oxidized copper: Hi Kerri You are correct about the lemon juice - I typically see store bought lemon juice with a pH of a bit lower than three. That s obviously fine to work with (that said, I wouldn t drink with a sore throat it or pour it into a cut). Once you get into...

Science for Kids: my science fair project, epsom salts, cubic crystals
epsom salts, cubic crystals, growing crystals: Hi Judyta -- I had to look it up, but sodium silicoaluminate is actually used to *prevent* large crystals from forming, and to reduce caking of salt if the air is humid. My guess is that you got a perfectly formed seed crystal in there, and the solution...

Science for Kids: science-solutions and suspensions, solutions and suspensions, science solutions
solutions and suspensions, science solutions, saturated solution: Hi Karen, This sounds like homework and the answers should be in your book. A) I m not sure of the M------ but when sugar is mixed with water it dissolves, this shows that it is soluble in water. B) non-soluble liquid or a saturated solution ...

Science for Kids: seawater and red wavelengths, ugly math, nm wavelength
ugly math, nm wavelength, fun with science: Hi Bethany -- this is a great question! Lots of people ask me why seawater looks blue when you are underwater, but nobody has yet asked WHY. The answer is Rayleigh Scattering. The intensity of the scattered light beam is proportional to the 4th power...

Science for Kids: solar car kits for kids, solar car kits, solar car kit
solar car kits, solar car kit, google: Hi Eileen -- most solar car kits run in the $40 range, but there are a few out there right at $10. Here s the Google shopping search I used (google shopping, solar car, under $10) http://www.google.com/products?q=solar+car+kit&oe=utf-8&price1=&price2=10.00&lnk=prsugg...

Science for Kids: solar and wind power, american wind energy association, american wind energy
american wind energy association, american wind energy, wind energy association: Hi Sally. The thing I like about the Picoturbine is that the student gets to build the alternator, too. His hypothesis is exactly right; wind turbines are very rarely used alone; they are almost always installed in conjunction with solar panels. (There...

Science for Kids: sound, whale songs, density of water
whale songs, density of water, air density: Hi Caroline, Light travels through gases at the speed of light or nearly so, the molecules in the air does refract some of the light and of course much gets reflected as well. Sound on the other hand travel more slowly through the air then through water....

Science for Kids: Testing soil for acid level, garden soil, soil types
garden soil, soil types, flower bed: Hi Maegan, I would recommend that you look every where and take samples from all of these places. I would make a map of where these were taken and may be even a photograph of you taking the samples. Take one in the lawn, one from under an Oak tree, perhaps...

Science for Kids: transform of energy, battery powered toys, example of energy transformation
battery powered toys, example of energy transformation, potato clock: Hi Cai, Turning on the lights in your room is actually an example of energy transformation. You are taking the electrical energy from the electrical outlet, leading it through a cord and, when it hits the filament in the light bulb, turning it into heat...

Science for Kids: Using Solar power for heating coils and light in an art exhibit, heating coils, using solar power
heating coils, using solar power, thermochromic materials: Hi Jessica -- before I can give you any advice, the crucial question is how much energy to you need to make your thermochromic materials change color, and how much power do you need at one time? Energy is measured in watt-hours, power is measured in watts....

Science for Kids: variables in science, controlled variables, seed pot
controlled variables, seed pot, soil seed: Hi Donna, A controlled variable is acutally the controlled elements of an experiment thus if you are experimenting with plants, the soil, seed, pot, and the amount of water given are all controlled variables. The Responding variables are the speed...

Science for Kids: variables in science, ramp angle, extraneous variables
ramp angle, extraneous variables, how to write a hypothesis: Hi Donna, Hypothesis are hard. When you are stating a hypothesis, you are stating that something will happen (and possibly using a because statement). For example, a hypothesis would be: If I eat a lot of popcorn and do not exercise, I will be unhealthy....

Science for Kids: White Scale, belly button lint, food particles
belly button lint, food particles, bacteria in the mouth: Hi Kyle, Are you asking about the tarter that can form on teeth in your mouth? If this is the case, tarter build up occurs when the teeth are not brushed and the food that you eat sticks to the teeth and is attacked by the bacteria in your mouth. The combination...

Science for Kids: waves, why does light refract, sound waves
why does light refract, sound waves, low density: Hi Susan, It is a matter of density. The more dense the substance the faster the sound waves travel. This is because the sound transfers more effinently the denser the substance. Thus, sound can not travel through a vacuum, in air it can travel but not...

Science for Kids: whitch one?, carbonation, clump
carbonation, clump, chemical reactions: good question. do the experiment to find out. I ve never done the experiment, but am pretty sure I can guess the result. Almost all chemical reactions happen faster at higher temperatures. so I believe that it will lose the carbonation faster when it s...

Science for Kids: working models on the theme electricity, sciencebuddies org, wind power generator
sciencebuddies org, wind power generator, electromagnet experiment: Here are some links http://www.sciencebuddies.org/mentoring/project_ideas/Elec_p009.shtml?from=Home http://www.flinnsci.com/Documents/demoPDFs/PhysicalSci/PS10405.pdf I do NOT recommend a model tidal power generator. They are tricky to build, and...

Science for Kids: 5th Grade Science Fair...Help please!, 5th grade science, carbonation in soda
5th grade science, carbonation in soda, silly putty: Hi Emily, How big are your mixing bowl and your measuring cup? You may want to fill the measuring cup until it is overflowing, cover the top of the cup (and hold it) with something along the lines of oaktag, turn the cup upside down, put it in the bowl,...

Science for Kids: 6th grade science fair, 6th grade science, fingerprint recognition
6th grade science, fingerprint recognition, whole books: Hi Jordan -- It depends on the scope of your project. Do YOU have to do the research yourself (by fingerprinting a number of boys and girls and comparing them), or do you just have to do the research? In either case, your first stop should be the library,...

Science for Kids: Affect of hot/cold temps on helium ballons, helium ballons, helium balloons
helium ballons, helium balloons, cold temps: Hi Dillon, Heat makes the molecules in a balloon speed up and become more active which may cause the balloon to expand in size and float more readily. While cold temps may make the balloon deflate a bit as the molecules slow down and may be less bouyant....

Science for Kids: Aluminum corrosion, strong acids and bases, toilet bowl cleaners
strong acids and bases, toilet bowl cleaners, lab apron: Hi Kristina -- You didn t mention using electricity in your original question, so I didn t mention it either. The answer is, you bet! If you want to corrode some aluminum fast and safely, salt water and electricity are the way to do it. Here s how...

Science for Kids: aerodynamics, hot air balloon, studying in singapore
hot air balloon, studying in singapore, glider: Hi wee, It depends on how the heat is applied. If it is applied to the glider overall, no. However, if you apply it underneath the glider as the glider is in the air, the glider will move slightly upward - think about a hot air balloon. The air below...

Science for Kids: Bridges, matsuo bridge, plastic polypropylene
matsuo bridge, plastic polypropylene, arch bridge: I assume you mean the span of the bridge (width from one end to the other) is 27 cm. The arch can be shallow or deep - look at the photos. If the arch is deep the Masonite is longer. If the arch is shallow, the Masonite is shorter. Get a large piece of...

Science for Kids: The big bang theory, big bang theory, what is the big bang theory
big bang theory, what is the big bang theory, roman catholic priest: Hi Holly, This is the theory that discusses the beinning of the universe. A number of years ago, some scientists at the Bell Labs found that there was a kind of background electronic hiss or white noise on most radio frequencies (on TV it looks like snow...

Science for Kids: biology, hydrogen atoms, chemical energy
hydrogen atoms, chemical energy, light energy: 1. The sun combined hydrogen atoms to form helium, which releases light. 2. The light goes through space to the Earth. 3. The light hits the leaf of a plant, where photosynthesis turns this light energy into chemical energy, which makes more leaves, fruit,...

Science for Kids: Chemistry Help!, combustion lab, lighting a match
combustion lab, lighting a match, chemistry help: Hi Taylor, That depends on the fuel. If it is gas (propane or methane) then lighting a match to it will cause it to burn completely. As to getting all of the energy out of it, that is a different story. On the other hand if it is a liquid like gasoline...

Science for Kids: Copper vs steel, electromagnetic motors, copper wire
electromagnetic motors, copper wire, science experiment: Hi Will -- First of all, is your steel wire insulated? If not, that s a short circuit and explains the problem. Your copper wire likely is insulated, though the insulation may be very thin and clear, and not very obvious. Copper is more conductive than...

Science for Kids: Corroding Metals, copper pennies, stainless steel spoon
copper pennies, stainless steel spoon, silver nitride: Hi Johathan I would think that of the materials you tested, only the steel wool may have shown some rust in either water or orange juice, but not necessarily. A Penny is made of copper and tin, a kind of bronze. This generally will not corrode in water...

Science for Kids: chemistry, metallic element, high temperatures
metallic element, high temperatures, beryllium: Beryllium is a metal. It s poisonous, very expensive, and is very strong even at high temperatures. When I was working as a spacecraft designer, sometimes we used beryllium to make parts that had to be very strong and lightweight. Here are some links...

Science for Kids: Daily Science, green bay wisconsin, earth tilt
green bay wisconsin, earth tilt, southern hemisphere: summer. Here s a good explanation, with great drawings. http://astronomy.swin.edu.au/cosmos/S/Seasons Or you can go to this page and scroll down a bit to the explanation of the seasons. Note that when it is summer in the northern hemisphere, the...

Science for Kids: Dams, gorges dam, three gorges
gorges dam, three gorges, dam disaster: Hi Danielle. That s a cool idea, I like your science teacher. Probably the nastiest dam ever built in history just opened last month in China, the Three Gorges Dam. The environmental consequences were staggering. Here s a link: http://en.wikipedia.org/wiki/Three_Gorges_Dam...

Science for Kids: Dead Rechargeable batteries, nicd battery, rechargeable batteries
nicd battery, rechargeable batteries, hi ed: Hi Ed -- You can check them inline with a voltmeter, as long as you can reach both terminals of each battery. Just check across the 2 ends of a single battery and go down the line. Don t get your hopes up too high--usually any bad cells quickly pull the...

Science for Kids: Electricity, grid works, phenonmenon
grid works, phenonmenon, science project: Hi Jonathan -- Usually the way to start a project is to find a problem you want to solve or a phenonmenon you want to explain; THEN you pick your hypothesis. You re trying to go about it backwards from the usual method. I ve been thinking on this one for a...

Science for Kids: egg drop, open cell foam, closed cell foam
open cell foam, closed cell foam, shock absorber: Hi Rebecca -- since us science geeks have come up with a way to win the egg drop every time, teachers have started changing the rules. I ve included the things you need to think about below. Since you can t use the foam, you need to keep in mind -- you need...

Science for Kids: electricity and water, conductor of electricity, heart muscles
conductor of electricity, heart muscles, electric signals: People s hearts beat because of electric signals that flow from one part of the heart to another. Because the signals are weak, if you stick a very strong electric current into a person, it will be so strong that the signal that says beat won t be heard...

Science for Kids: electromagtism, electromagnet, working model
electromagnet, working model, usha: Hi Usha -- it s easy. You ll need a nail, some thin, insulated wire, and a D battery. Simply wrap the wire around the nail, and connect to the battery. That will make the nail magnetic as long as current from the battery is applied. Be careful --- the wire...

Science for Kids: Fizz, precise question, science project
precise question, science project, cold one: Hi CJ, You may want to clarify your question a bit. A more precise question might be: How does starting temperature affect the amount of foam when soda (?) is poured into a glass at room temperature? You may also want to repeat things so that you...

Science for Kids: Science, radioactive isotopes, francium
Science for Kids: Science, radioactive isotopes, francium, atom

Science for Kids: science fair research paper / currently accepted theories, nuts, philadelphia eagles
Science for Kids: science fair research paper / currently accepted theories, nuts, philadelphia eagles, booo

Science for Kids: forces, projectile motion, georgia state university
projectile motion, georgia state university, physics classroom: Hi Pamela -- that s the study of Ballistics, and the path that the object follows is called the Trajectory. You ll need to do some research on your own, it s a whole discipline of science that I can t really explain in one email! You didn t give your grade...

Science for Kids: galvanic corrosion, stainless steel mesh, salt water solution
stainless steel mesh, salt water solution, galvanic corrosion: Hi Kristina -- Lemon juice won t work well as an electrolyte, that was for trying to corrode the aluminum without electricity. Salt water is what you want. Use the aluminum as the anode (pos) and whatever else as the cathode (neg). You can t coat the steel,...

Science for Kids: gravity, northern hemisphere, center of the earth
northern hemisphere, center of the earth, gravity: People feel that down is toward the dirt under their feet and up is toward the sky. In Australia, just like in the northern hemisphere, their feet are toward the dirt and their heads are toward the sky. Gravity pulls people toward the center of the...

Science for Kids: Helium, helium balloon, helium balloons
helium balloon, helium balloons, balloon supplier: Hi Caleb --- of course the helium balloon is easy, get a mylar one or ask at the helium balloon supplier which material holds helium the longest. But I m not sure how you could make it maneuver. Are you allowed contact with the balloon on the course? If not,...

Science for Kids: home appliances, kilowatt hour meter, kilowatt hours
kilowatt hour meter, kilowatt hours, light bulbs: Hi Courtney -- Absolutely the best thing you can do for your experiment is to buy a kilowatt-hour meter. A great inexpensive example is the Kill-o-Watt, which costs under $30 and is available in many places-- both online, and at stores like Home Depot...

Science for Kids: important, food preference, food choice
food preference, food choice, time one: There are many animals that naturally avoid foods of a certain color. Many scientists believe that this has allowed these animals to survive over time. One of the colors animals typically avoid eating is blue. Many poisonous or rotten foods are bluish,...

Science for Kids: Plants, soil moisture, sun light
soil moisture, sun light, warmth: Hi Kristi, Seeds are not exposed to light. They are buried in the soil. HOwever the light provides warmth and this is felt by the seed along with soil moisture. IF the soil is moist enough and warm enough, this encourages the seed to germinate and grow....

Science for Kids: Platinum for 9th Grade Science Report, vehicle emission control, element platinum
vehicle emission control, element platinum, 9th grade science: Hi Lauren -- Platinum, like gold, does not corrode under normal conditions, so it s always shiny. It also does not form compounds easily. That s why it s so valuable! It s most often used as a catalyst in vehicle emission control system (in the catalytic converter),...

Science for Kids: SCIENCE, snake 5, wet towels
snake 5, wet towels, tuna fish: 1. Get a roll of paper towels 2. Tear off some identical pieces along the perforations. 3. If you have access to a spring scale, get one. 4. Twist the paper towel into a snake. 5. Attach the spring scale to one end of the snake. 6. Grab the other...

Science for Kids: Science, element astatine, radio active elements
element astatine, radio active elements, atomic weight: Hi Ashleigh, Francium (FR) atomic weight 87, is the rarest of the naturally occuring highly radio active elements. It is so rare that less then a few pound of it have ever been mined. It decays very fast in air and produces radon a radio active gas and...

Science for Kids: Science, priscilla, molecule
priscilla, molecule, molecules: Hi Priscilla That s a great question. Dishwashing liquid is made up of two-sided molecules. One side of the molecule is attracted to oil, and the other side is attracted to water. When water is sprayed on a dish, the dishwashing liquid sticks to the...

Science for Kids: Science, tiny fibers, water molecules
tiny fibers, water molecules, paper towel: Hi Priscilla, A paper towel is made up of many tiny fibers. When the paper towel is wet, the fibers are grabbing onto water molecules. Once all of the spaces betwen fibers are full of water, and all of the fibers themselves are full of water, there is...

Science for Kids: Science, heavy things, friction
heavy things, friction, lubricants: 1. Friction is caused by things rubbing against each other. 2. If you have enough rubbing due to friction, you can feel the things get hotter. 3. Heavy things have more friction than light things, so it s harder to push a very heavy box (no wheels) than...

Science for Kids: Science, clorofil, green stuff
clorofil, green stuff, photosynthesis: Hi Annette, A plant can not grow very well with out sunlight. The sunlight is what a plant needs to make food so that it can grow. The sun + the clorofil (the green stuff) in the leaves converts the sun s energy into sugars that the plant uses for energy...

Science for Kids: Science Fair Project, high temperature thermometer, normal temperatures
high temperature thermometer, normal temperatures, kinds of wax: Hi Janel -- You ve covered most of the materials that change state at normal temperatures (I mean those temperatures that humans have easily available). For the plastic, you might consider getting some Friendly Plastic -- you can find sources on the internet....

Science for Kids: Science fair, wetland plan, oil removal
wetland plan, oil removal, many different types: Hi Irais, I am thinking you are looking to figure out how plants can remove oil from polluted water, rather than the other way around. In that case, you would want to use a wetland plan. I am not entirely sure how you are planning on measuring oil removal......

Science for Kids: Science heat transfer, conduction convection and radiation, hot air balloon
conduction convection and radiation, hot air balloon, boiling an egg: Convection means hot air blowing transfers heat. The only one of your choices with blowing hot air is the balloon. Radiation involved heat transfer between two objects that don t touch each other, and there s no blowing hot air. Like you turn on the oven...

Science for Kids: Science project, salt level, bean seed
salt level, bean seed, science project: Hi Aitiana -- That s dependent on a lot of factors, even including the individual strain of bean seed you have to germinate. Some can tolerate more salt than others. Above a certain salt level, most will not germinate at all. I can t really answer...

Science for Kids: science fair, local public library, science fair
local public library, science fair, time don: Hi Natalia, Are you feeling nervous? That is ok, it is a normal reaction to doing something new and unfamiliar. Do you feel comfortable with your experiment and the data? If you are comfortable with your experiment and work you did, then just relax. ...

Science for Kids: science fair project, paper towel absorbency, drip water
paper towel absorbency, drip water, paper towels: Quincy, Take samples of paper towels (all brands and types) cut a sample of each the the exact same size (perhaps 6 inches by 6 inches square) and then using a pipet that can hold 50ml of water, you slowly drip water onto the sample until it is fully saturated...

Science for Kids: science fair project, surface tension and capillary, capillary action
surface tension and capillary, capillary action, water molecules: Hi Raven -- It sounds good to me. A sample hypothesis might be I think that water molecules are strongly attracted to each other. Ways to demonstrate this might include both surface tension and capillary action. And, you could use solutions (like adding...

Science for Kids: science fair project, crazy shapes, bar magnet
crazy shapes, bar magnet, ferrofluid: It relates quite directly. The lines of force in a magnetic field can be thought of like a topographic map -- the closer the lines are together, the stronger the field. The center of mass of each pole of the magnet is what determines the shape of the...

Science for Kids: science fair research paper / currently accepted theories, plant growth experiments, plant fertilizer
plant growth experiments, plant fertilizer, bean seeds: Hi Laura, Thanks for the clarification. When you talk about the rate of growth of bean seeds, a number of factors come into play. First off, you have to define what growth means. Are you measuring when the plants first germinate, how tall the plants...

Science for Kids: soda carbonation, plastic bottles, couple hours
plastic bottles, couple hours, different kinds: Hi Gregg -- actually measuring the CO2 released is complicated without special lab equipment, but it s easy to *compare* different kinds of soda. Use soda in plastic bottles, and be sure both kinds of soda are at exactly the same temperature. Seal each...

Science for Kids: solar panel, cell phone charger, hat fans
cell phone charger, hat fans, physics class: Hi Joylun, Small Solar cells are fairly inexpensive and can be found in a lot of hobby shops. They power everything from hat fans to solar powered toy cars. You can get them at Radio Shack and on line from various sources. I have several at home that...

Science for Kids: soler panels, 12 volt batteries, aa battery charger
12 volt batteries, aa battery charger, nimh batteries: Hi Shawn -- Most solar chargers are for 12 volt batteries, because these are the most common in vehicles. But if your wattage needs are not very high, there are lots of small solar panels out there intended for charging small AA, D, C etc. NiCad and NiMh batteries....

Science for Kids: solubility of ink in water, solids and liquids, self inking stamps
solids and liquids, self inking stamps, ink on the paper: Hi Teresa, The ink company that supplies the stamp shoud be able to tell you the content of the ink. You can contact them via the internet or you can write them a letter telling them what you are doing and asking for the information you need. But, even...

Science for Kids: wind turbines, small wind turbine, wind turbines
small wind turbine, wind turbines, science project: Hi Jada, Can you describe the pinwheel / take a picture of it so I can get a better look? If it has a rotor/generator in it you should be able to do this project and create a simple circuit to demonstrate that wind power turned into electric power. The...

Science for Kids: Aluminum Corrosion, acidity levels, litmus paper
acidity levels, litmus paper, acids and bases: I think foil will last for 30 days, but you could certainly try larger pieces of aluminum too. The corrosion won t increase, it will just be easier to see the more surface area you have. Salt water is a base -- however there are not many safe household...

Science for Kids: ATOMS, nuclear fission and nuclear fusion, source of energy
nuclear fission and nuclear fusion, source of energy, wikipedia: Hi Aubrey --- this Wiki article is pretty good, as usual. You ll need to go to the bottom of the article to get more articles on both nuclear fission and nuclear fusion (the main ways atomic energy can be used)--also good articles there. http://en.wikipedia.org/wiki/Nuclear_energy...

Science for Kids: Bohr Models and ionic bonding, bohr model of the atom, bohr models
bohr model of the atom, bohr models, water molecule: Hi Becka -- I don t think I can answer without more information about how you are trying use the Bohr model to show something -- do you have to show it mathematically? Outline a chemical reaction? Or draw a diagram of it? Or make a 3D model, or a computer...

Science for Kids: dinosaur bones, dinosaur bones, plaster of paris
dinosaur bones, plaster of paris, casting resin: Hi Jennifer -- that does sound like a fun idea for the kids! You have 3 basic options -- plaster of paris, concrete or plastic resin. The basic process is: First you need an object to cast. You could carve your own bones, make them out of clay, or find...

Science for Kids: Egg drop, egg drop, soggy mess
egg drop, soggy mess, inner layers: Hi Frank -- Jello is not very shock-resistant, it is very soft. It technically could work as the OUTER layer of the different densities of foam in a proper egg drop box (search my previous posts about this)....but Jello is full of water. It would really mess...

Science for Kids: egg drop, egg drop, corrugated cardboard
egg drop, corrugated cardboard, balsawood: Surround the egg with material that will absorb energy to protect the egg. Do some experiments to see what works best. People usually try stuff like styrofoam, balsawood, corrugated cardboard, etc. Or if the rules permit, you can suspend the egg in a fluid...

Science for Kids: electromagnetism, copper wire, electromagnetism
copper wire, electromagnetism, electrical charges: Hi Bridget -- you don t say what grade you are in. That always helps me in composing answers. In any conductor (usually a metal, like copper wire) if electrical charges are moving, a magnetic field is created around the conductor. If you look at from...

Science for Kids: enamel, family dentist, tooth enamel
family dentist, tooth enamel, dentures: Hi Ashley, Contact your family dentist and ask him/her where to find teeth or dentures that you can use for this experiment. Make sure that the dentist knows what you are using it for. When handling real teeth, be sure you wear gloves. Dentures,...

Science for Kids: Smoke Generator, diesel loco, smoke generators
Science for Kids: Smoke Generator, diesel loco, smoke generators, model steam

Science for Kids: Soda Fizz, different kinds, soda
Science for Kids: Soda Fizz, different kinds, soda

Science for Kids: fuel, carbons, heat and light
carbons, heat and light, solid waste products: Since you didn t say what grade you are in, I don t know how complicated of an answer you want. When people burn gasoline, for instance, the carbons in the gasoline combine with the oxygen in the air to form carbon dioxide plus heat and light, with some gas...

Science for Kids: heat and freeze, adri, leaks
adri, leaks, carbon dioxide: Hi Adri -- If you freeze the Coke, and the container stays intact (no leaks of liquid or gas), everything will be just like it was before, fizz and all, when you thaw it out. Usually, though, the container bursts or leaks from the expansion of the ice forming....

Science for Kids: Kind of stains, bacon grease, iron rust
bacon grease, iron rust, inorganic stains: Hi Munira, An Organic Stain is made by something that was or is alive like grape jelly, grass, blood or bacon grease. An Inorganic Stain is made by something that was never alive like iron rust, red clay mud, mineral makeup and other inorganic chemicals....

Science for Kids: Li-ion polymer battery, polymer batteries, polymer type
polymer batteries, polymer type, polymer battery: Hi Jason -- Li-ion batteries of all types are VERY expensive, fragile, and twitchy. The polymer type is a bit more durable physically and cheaper to make, but more fragile in regards to abuse than other li-ion types. So for that reason, pretty much...

Science for Kids: Light and color, colors and shapes, lime green
colors and shapes, lime green, color question: Recently many fire departments started repainting the trucks lime green instead of red - and guess why? It has nothing to do with brightness, and instead has to do with the human eye s ability to distinguish colors and shapes through fog. Not suprisingly,...

Science for Kids: can the landfill be a source of energy, methane digesters, methane digester
methane digesters, methane digester, grade science fair project: Hi Elaine -- Yes, methane gas can be and has been extracted from landfills. However, keep in mind that it s only organic material that can be broken down into methane gas by methanogenic bacteria....all those plastic bags, tin cans, bottles and everything...

Science for Kids: Material to make 1lb float-gr.2 science, plastic trash bags, packing peanuts
plastic trash bags, packing peanuts, cork board: Hi Sheggie, That is a lot of weight. But here are some suggestions 1) ballons 2) foam packing peanuts 3) wood 4) plastic trash bags 5) swimming pool noodles (those long foam toys) 6) cork board 7) bubble pack Most anything that floats in water...

Science for Kids: Natural Science Questions, higher latitudes, vitamines and minerals
higher latitudes, vitamines and minerals, independent assortment: Hi Nick, I will answer number 2 first as this is a bit easier to explain The answer is basically no. the over all fitness of an organism is not related to a single set of alleles but rather a combination of them in a given environment and environmental...

Science for Kids: physica project, science fair project ideas, physics project
science fair project ideas, physics project, great science: Hi Shreya -- Questions like this are impossible to answer! Because, the first thing you need for a good science project is to pick a topic that you are interested in. Otherwise, it won t be any fun at all for you. The makings of a great science project...

Science for Kids: plastics melting capabilities, good science fair project, grade science fair project
good science fair project, grade science fair project, material safety data: Hi Renee, I would be more concerned with the fumes from both melting the resin and the remelting of plastic items in the oven. These fumes are not good to breath. Further to this point, burning plastics also give off some rather nasty fumes which...

Science for Kids: Science, water molecules, water and the glass
water molecules, water and the glass, viscous oil: Hi Alston --- It does -- BUT it s unlikely you ll be able notice the difference if you fill the glass with water, versus say vegetable oil, and just listen. I just tried it! By clinking on the glass, or trying to play it with your finger to make it...

Science for Kids: Science Fair, microscopic bits, ferrofluid
microscopic bits, ferrofluid, magnetic domains: Hi Jay -- There s a liquid called ferrofluid that is strongly attracted to magnets; it contains microscopic bits of iron, but aligned so that they can still form magnetic domains (blood contains iron, but it doesn t form domains, so blood is not attracted...

Science for Kids: Science Fair, electrochemical reaction, flashlight bulb
electrochemical reaction, flashlight bulb, potato battery: Hi Jamaica -- Yes, your veggie battery will eventually wear out...the zinc will be removed from the galvanized nail, and the chemistry inside the veggie will change. It will get weaker and weaker, with less and less voltage and current as time goes by...

Science for Kids: Science modal, science fair project ideas, impossible question
science fair project ideas, impossible question, 9th grader: Hi Ansu -- It s an impossible question to answer! The first thing about any science fair project is that the topic must be interesting personally to you. So decide what area of science you like the best. A good second step is to search google for: science...

Science for Kids: Science Project (EggDrop), egg drop project, plastic drinking straws
egg drop project, plastic drinking straws, shock absorbers: Hi Brian, You want to think about things that can slow the egg down as it travels, or can absorb some of the shock as the egg hits the floor (or even better, both). In terms of slowing the egg down, think of things we use to slow down falling objects...

Science for Kids: Smoke Generator, hurricane force winds, military smoke grenades
hurricane force winds, military smoke grenades, army surplus store: Hi Daniel -- The smoke machine in that file used just the steel tubing as the heater, insulated from the injector by ceramic. You could do a similar thing with nichrome wire (I would try a heating element removed from a toaster or something similar), but...

Science for Kids: Soda Fizz, zip lock bags, litre bottle
zip lock bags, litre bottle, science kids: Hi Lex -- It s easy to *compare* how much carbon dioxide is in 2 different kinds of soda --- seal the bottles up in their own zip lock bags, open the bottle without opening the bag, and then wait a few hours to see how much the bags inflate. To actually...

Science for Kids: Soda Fizz, tomato paste cans, cup measure
tomato paste cans, cup measure, measuring cup: Hi Lexi, I suggest that you use cans of soda vs. a 2 liter bottle. The reason is that to set up the experiment with a two liter bottle is very difficult. If you use a can, then you can use a large bowl or basin, a two cup measure and water. You...

Science for Kids: Solar energy, volt light bulbs, rv supply store
volt light bulbs, rv supply store, watt light bulb: Hi Victor -- It depends on how many watts the lightbulb uses! To make it easy, let s say you have a 10 watt light bulb and a 10 watt solar panel. Charge your battery for 20 minutes in full sun, and you ll get 20 minutes of power from the battery. Actually,...

Science for Kids: Sound, solids and liquids, solids liquids
solids and liquids, solids liquids, long distances: Hi Bridget-- like with many scientific problems, you have to be careful how you ask the question! What do you mean by clearest and loudest ? Fastest? Farthest? I understand that you mean largest amplitude for loudest, but over what distance and at what...

Science for Kids: Sugar content, college professors, content question
college professors, content question, biology department: Hi Bernita, It is hard to do with out the proper equipment but it can be done. First you will need to take a known quantity and either freeze dry it or boil all of the water off. This will leave a residue. Some of this residue is sugar. Some will be...

Science for Kids: science, nucleus of an atom, electron energy
nucleus of an atom, electron energy, protom: Hi Erica, I m not sure if I understand your question. The electrons spin around the nucleus of the atom and various shells have more or less energy. The outer shell of most is the most energetic. With in the nucleus of the atom, the protom carries energy...

Science for Kids: science project, which soft drink has the most carbonation, seltzer water
which soft drink has the most carbonation, seltzer water, soft drinks: Hi Jermaine. This is a very difficult question to answer. The reason: Every bottling company has multiple bottling locations. Each location has different water conditions which may require more or less carbonation. In addition, different kinds of soft...

Science for Kids: seperating oxygen and hydrogen from water, dc power supply, polyethylene tubing
dc power supply, polyethylene tubing, polyethylene bags: Hi Juan -- Just remember that hydrogen and oxygen are dangerous! I don t recommend any container made of glass or metal to collect the gases. By far the safest is to use polyethylene tubing that runs to polyethylene bags taped around the ends of the tubing...

Science for Kids: solar oven, solar ovens, oven temperatures
solar ovens, oven temperatures, solar oven: Hi Sadia -- Sure! A basic solar oven concentrates the sun s direct rays onto your food to heat it up. More advanced solar ovens direct the heat into a chamber where your food is located. This lets direct solar heat build up more quickly inside until...

Science for Kids: solar power, toy boat, rc boat
toy boat, rc boat, solar cell: I would recommend that you obtain a RC boat and replace the gas powered motor with an electric one powered by the solar cell. That way you will have all of the controls already built into the boat and you are just running it with electric power vs. fuel...

Science for Kids: how to use a voltmeter, how to use a voltmeter, copper ions
how to use a voltmeter, copper ions, zinc strips: Hi Mary, I think I understand what you want to do. For this to work, you will need copper and zinc strips and wires attached to the strips. Place one strip into one end of the fruit or veggie and the other strip at the far end. These need to go into...

Science for Kids: Wheel diameter's affect on speed, wheel diameter, small wheels
wheel diameter, small wheels, wheels car: Hi Tracey -- A large wheel covers more distance per each turn of the axle than a small wheel. But, it takes more force to accelerate a car with large wheels up to the same speed during the same amount of time as a car with small wheels. Most of it boils...

Science for Kids: Yeast fermentation lab, yeast fermentation lab, lab questions
yeast fermentation lab, lab questions, control tests: Hi Jeff 1) determine a base line by determining how much the yeast ferment before the addition of carbs 2) Then figure out the ideal amount of carbs to add 3) then do four control tests with know amounts of carbs and see which impacts the most...

Science for Kids: The Bear Naked Egg Drop, naked egg drop, earth science class
naked egg drop, earth science class, uncooked egg: build something - test it - redesign - rebuilt - retest. That s the key to a great design. use materials that will crush and absorb energy. Styrofoam and balsawood are excellent. Corrugated cardboard is good, too. Cocoon the egg VERY tightly so it...

Science for Kids: Biology, red blood cells, heart pumps blood
red blood cells, heart pumps blood, kidneys filter: People s blood, like the blood of all animals, is basically salt water with other stuff (like red blood cells) in it. The two most common salts are sodium chloride (table salt) and potassium chloride. Canned food, frozen food, and fast food always has huge...

Science for Kids: Carbonated sodas, open containers, air bubbles
open containers, air bubbles, carbonation: Hi Latoya, Why does soda freeze in the can but not in an open container? The carbonation has a lot to do with this. In the case of an open container the carbonation comes out of solution leaving behind the water mixed with the flavorings etc... The water...

Science for Kids: Co2 levels in club soda, club soda, co2 levels
club soda, co2 levels, bottler: Read these three articles http://en.wikipedia.org/wiki/Supersaturation http://www.fitnessandfreebies.com/fitness/carbonation.html http://www.dreamessays.com/customessays/Medicine/12008.htm Since CO2 makes up about 0.3% of the earth s atmosphere,...

Science for Kids: carbonation, online encyclopedia article, carbon dioxide gas
online encyclopedia article, carbon dioxide gas, tiny bubbles: Hi Jordon -- I can give you some basic info, and a great link to the online encyclopedia article. Carbonation in soda is dissolved carbon dioxide gas (CO2). It is forced in under pressure at the bottling plant. The soda stays carbonated because its under...

Science for Kids: crystals, giant crystals, salt crystals
giant crystals, salt crystals, sugar crystals: Salt crystals taste salty. Sugar crystals taste sweet. It s easier to grow sugar crystals. They are pretty much the same shape - square. But salt crystals are more regular and look more square, while sugar crystals are more irregular in shape. Look at...

Science for Kids: Egg drop w/ limited materials, egg drop competition, nfl football player
egg drop competition, nfl football player, shock absorber: Hi Cat -- below is pasted in my best advice for the egg drop. But I m starting to find the problem even more interesting recently! I get egg drop questions here at least once or twice a month. The problem is, the best scientific method is outlined below (using...

Science for Kids: earth science, specific heat of water, salt crystals
specific heat of water, salt crystals, temperature variation: Hi MarlA, You are basing the your question on what fundamental facts? Did you take a container of salt water and a container of regular water and subject them to the same conditions? And in this experiment you found that the salt water evaporated faster?...

Science for Kids: Egg drop w/ limited materials, wood dust, eggs
Science for Kids: Egg drop w/ limited materials, wood dust, eggs, egg drop competition

Science for Kids: science experiment question, food coloring, glue
Science for Kids: science experiment question, food coloring, glue, vanilla

Science for Kids: volume thermal expansion
Science for Kids: volume thermal expansion

Science for Kids: genetics, genetics and heredity, srel
genetics and heredity, srel, library thinkquest: Here are some links to essays and more young people interested in genetics and heredity. Have fun. Let me know if you have more questions. Dr.J www.uga.edu/srel/kidsdoscience/kidsdoscience-genetics.htm library.thinkquest.org/3696/index2.htm www.sciencekidsathome.com/science_topics/genetics-a.html...

Science for Kids: homemade candles?, hand dipped candles, molded candles
hand dipped candles, molded candles, craft supply store: Go to your local craft supply store. They will have an entire aisle with candle-making supplies. Buy some wax and buy some scent and some string for wicking. You might also want to buy some coloring so you can make colored and scented candles. If you don...

Science for Kids: Mold/bacteria, dark rye bread, international journal of food microbiology
dark rye bread, international journal of food microbiology, search engine searches: You have asked a very interesting question. I am glad that you mentioned that you added moisture, because without moisture, much growth would have been inhibited. So, since you mentioned that you included dampness, I went to the technical literature to...

Science for Kids: making a candle, double boiler, scented candles
double boiler, scented candles, colorant: Ke-J You will need candle wax, colorant and scent. You will also need wick and a mould to pour the candle form. All of these items can be purchased from many hobby shops like Micheals or Hobby Lobby etc... You will also need a double boiler so that you...

Science for Kids: model house, frank lloyd wright, famous architects
frank lloyd wright, famous architects, model railroads: Hi Rosy, Many colleges and Universities have schools of architecture and they build many kinds of models. So, if you live in a large city like Chicago, Houston, New York, or Los Angeles, you can find stores which speicalize in selling the materials needed...

Science for Kids: Neurology: Does love exist?, neuroscience for kids, school psychologist
neuroscience for kids, school psychologist, cold test: Taylor, thanks for asking this question. You could hypothesize that, love does not exist. I believe that it would be hard to prove, however, having experienced it. Don t you feel loved? I hope you do. At least, you should feel I love you enough to answer...

Science for Kids: I need help for my kids' Science Projects for 3rd and 4th Grades?, kids science projects, town water supply
kids science projects, town water supply, watercycle: Thank you for your question. Many parents have similar questions. For daughter: Have her try setting up 6 dishes, 3 with salt water and 3 with plain water. That will give you 3 copies (called, replicates ) of an experiment comparing the salt and w/out...

Science for Kids: I need help for my kids' Science Projects for 3rd and 4th Grades?, kids science projects, drinking glasses
kids science projects, drinking glasses, digital clock: You don t need any websites to do these fun and easy experiments. For the salt water project 1) Get two identical small drinking glasses and fill them up with identical amounts of water. It s easiest if you use clear glass or clear plastic so you can...

Science for Kids: open ended question, respiration rate, circulation system
respiration rate, circulation system, answer question: 1. An open-ended question is one that asks for a long answer. Such as What did you think of the movie? As opposed to a short-answer question Did you like the movie which asks for a short answer - yes or no. 2. People s heart rate and respiration...

Science for Kids: oven toaster, connecting jumper cables, hot dog cooker
connecting jumper cables, hot dog cooker, clothes hanger: Hi Richard....your worries are good, beacause messing with a car battery battery can get things red-hot before you have time to drop the cables. Burn danger for you, and fire danger for your house. You won t have much luck heating meat from the outside....look...

Science for Kids: Plants, fructose corn syrup, high fructose corn syrup
fructose corn syrup, high fructose corn syrup, artificial flavors: I never tried this experiement, so I will have to guess. There are two possible explanations. 1. Tonic water is bubbly because is has carbon dioxide added to the water. The bubbles make the water acidic. Maybe tomato plants don t like acid water. ...

Science for Kids: remote lighter, ieds in iraq, remote displays
ieds in iraq, remote displays, sophisticated electronics: Hi Daniel, Fireworks of any type are dangerous and have been known to hurt, maime and even kill people. This can happen even with remote displays done by professionals. You would require sophisticated electronics equipment to do what you are looking for...

Science for Kids: rock weathering, rock weathering, san francisco california
rock weathering, san francisco california, sue kayton: Your son and the teacher are both right. Your steps 1 through 3 are correct. Here s a little more detail on steps 4 and 5. 4) The pressure of the expanding water pushes on the crack, making it a tiny bit wider and longer. 5) The crack gets a bit wider...

Science for Kids: SCIENCE, free molecules, air in water
free molecules, air in water, boiled water: Hi Tyler, Water has naturally disolved gases in it. These gases are dependent on the source of the water. When you boil water, these gases are allowed to escape (that is where the bubbles come from when water boils. So, theoretically, the free molecules...

Science for Kids: Science Fair project- Water Cycle, water droplet, soil plants
water droplet, soil plants, water on the moon: 1. The water cycle would stop if we ran out of water or sunshine. There is no water on the moon, so it doesn t have a water cycle. Pluto has water, but almost no sunshine, so it doesn t have a water cycle. The sunlight hits the Earth and warms up...

Science for Kids: Science fair project, water molecules, carbonation
water molecules, carbonation, science fair project: Hi Michelle, The rate of freeze is effected by the amount of carbonation because as the water freezes, the carbonation escapes or becomes more concentrated in the solution and prevents some of the water from freezing creating more of a slush . Along with...

Science for Kids: Soda carbonation-balloon method, pints gallons, soda carbonation
pints gallons, soda carbonation, cups pints: Hi Stacey, This is a question of volume. When you do a displacement, the amount being displaced is equal to the volume in the balloon. Thus, fill a basin with a known amount of water (cups, pints, gallons which ever is the easiest measure you have)Once...

Science for Kids: Soda shaking experiment, diet soda, soda bottle
diet soda, soda bottle, san francisco california: If you open the lid very, very carefully, you won t lose any liquid at all - only gas. If you just pop the lid off, the results will vary widely since the amount of spray will vary widely. Do the experiment yourself and find out! Use a measuring cup to...

Science for Kids: Static electricity, free electrons, negative ions
free electrons, negative ions, static electricity: Hi Kris, Some kinds of fibers including polyesters, wool, nylons and other synthetics develop a potential energy when carded, pulled and drawn. Cotton in some cases will also have potential energy imparted to it if it is pearled or drawn . This potential...

Science for Kids: science, how to grow sugar crystals, great science
how to grow sugar crystals, great science, science project: What grade are you in? It s a great science project for students in 3rd grade or younger. If you re a bit older, then you d have to do a bit more than just grown crystals. You could grow them using different concentrations of sugar and graph the results,...

Science for Kids: science, alpha beta and gamma particles, radiation sun
alpha beta and gamma particles, radiation sun, beta particles: Hi Sarah, There are all kinds of radiation. Sun shine is a type of radiation and the heat from a radiator is a kind of radiation. However, I think you are asking about the kind that comes from radioactive sources. As a radioactive material begins...

Science for Kids: science experiment question, science experiment, science project
science experiment, science project, gatorade: Hi Kaitlyn, a lollipop is made of sugar. Vinegar has water in it but it is mostly Acetic Acid. And though sugar will dislove in acetic acid, it does so very slowly. Gatorade has a lot of disolved sugars and salts already so not much more sugar can disolve...

Science for Kids: science fair poster ideas, nitrogen cycle, cycle carbon
nitrogen cycle, cycle carbon, hi mary: Hi Mary, So WHAT COMES NATURALLY ? Breathing Eating Moving Hearing Plants growing, animals being born, raining, etc... Water cycle, Nitrogen cycle, Carbon cycle. (these you can find on the internet) Lots of other choices. ...

Science for Kids: science project, liquid dish soap, magnetic particles
liquid dish soap, magnetic particles, optical switches: Hi Dania, You can combine magnetics (Physics) and mechanics. You can make a rheological solution using liquid dish soap and iron fillings or steel wool. With steel wool you will need to carefully shread the clean soap free type into small bits. Mix either...

Science for Kids: simple electric motor, goig, mechanical energy
goig, mechanical energy, electric car: Hi Lisa -- you already have the motor built? Then... Wow, you don t need to ask me about all this stuff....both of your hypotheses are true. Your first one, Can electrical energy be converted into mechanical energy? is the best for a project. It sure...

Science for Kids: solids and liquids, solids and liquids, volcanoes and earthquakes
solids and liquids, volcanoes and earthquakes, lava flow: Lava is melted metals. Depending on what metals are in the lava, it can melt at different temperatures. Here is a good link http://answers.google.com/answers/threadview?id=46463 At normal pressure, water is in solid form (ice) below 0C, is liquid between...

Science for Kids: styuff, fiber tubes, natural fibers
fiber tubes, natural fibers, synthetic fabrics: Hello -- you ll find lots of information on stains searching the internet, because almost every stain remover manufacturer has a website with stain removal instructions. You can also write down websites when looking in the stain remover aisle in the supermarket,...

Science for Kids: sugar verses salt, teara, hand lens
teara, hand lens, google: Hi. What did you try? I d start with definitions: http://webmineral.com/Mineral_Definition.shtml I d look at the pieces of salt and sugar with a hand lens or microscope and make observations, too. (http://www.indigo.com/magnify/magnifiers.html) What...

Science for Kids: sunlight energy, wood cellulose, sunlight energy
wood cellulose, sunlight energy, carbon chains: When you burn wood, you start with chemical energy. When the wood burns, it releases heat (thermal energy) and light (light energy) and leaves behind ash (matter). So you are turning matter that contains ONE kind of energy into TWO different kinds of energy,...

Science for Kids: surface tension, grade science project, dirt clod
grade science project, dirt clod, 5th grade science project: Water is made up of jillions of tiny little water molecules, just like a snowball is made up of lots of crystals of ice, or a dirt clod is made up ot lots of little specks of dirt. The ice crystals or dist specks stick together, just like water molecules...

Science for Kids: volume thermal expansion, thermal expansion coefficient, homework questions
thermal expansion coefficient, homework questions, gallon tank: Hi Ryan -- I m not allowed to answer homework questions. However, I can can give you the info to solve it yourself: The thermal expansion coefficient of Diesel (in general) is 0.00046 per degree F. If you assume constant atmospheric conditions, it will...

Science for Kids: Water, concentraion, water tap
concentraion, water tap, tap water: Tap water has more impurities. These impurities act as nucleation sites, so tap water will boil and freeze at slightly lower temperatures. The temperature difference depends on the concentraion of impurities, and which minerals are present. So there is...

Science for Kids: Water Cycle, san francisco california, water cycle
san francisco california, water cycle, bad water: I think you have a few questions, not a phew questions. What grade are you in, so I know how simple or complicated the answer should be? Wikipedia has a good article about the water cycle http://en.wikipedia.org/wiki/Water_cycle and they have...

Science for Kids: 1st grade science project, grade science project, cotton swab
grade science project, cotton swab, 5 senses: Here s a fun experiment. Most people don t realize that smell and taste are very closely linked. If you block someone s sense of smell, they can t taste the difference between a slice of raw potato and a slice of apple. The most popular way to do this is...

Science for Kids: 2nd grade science fair project, quickcrete concrete, grade science fair project
quickcrete concrete, grade science fair project, sizable piece: Hi Cindy. Yes, the crystallization of ice is pretty amazing in how much force it can produce. However, there are different kinds of ice (something like 12 types), depending on the pressure under which they formed, how fast they were cooled, etc. As far...

Science for Kids: 3rd grade invention, egg cartons, greenhouse plant
egg cartons, greenhouse plant, egg holders: Hi Serena, Here are several ideas, 1) a sound attenuation box. Take a box big enough for a radio to fit into and then line the inside of the box with empty egg holders from the market. (the side that holds the eggs). Then turn the radio on and put...

Science for Kids: Acid and Wood, household acids, soil acidity
household acids, soil acidity, hydrogen peroxide: Hi Heidi He has chosen a very difficult subject. Wood is made of cellulose a very tough material not easily broken down by simple acids. If this were the case whole forests would disappear due to acid rain and soil acidity would wipe out even more forests....

Science for Kids: aquatic mold growth, growing sugar crystals, mold growth
growing sugar crystals, mold growth, sugar solution: Hi Mary, It could be any number of moulds. Some colonial bacteria may take a similar form. Growing sugar crystals requires special circumstances and specially prepared sugar solution. You can still grow the crystals in time for your science fair but...

Science for Kids: Biosphere, grade science class, 5th grade science
grade science class, 5th grade science, bioshere: Biosphere has two different meanings. One meaning is all the living stuff in a certain area, like around your house. The other meaning is an artificial place where the life is inside a man-made building, like on the mooon. Let s talk about your house...

Science for Kids: building a boat that floats, baking soda and vinegar, using electricity
baking soda and vinegar, using electricity, jet boats: Hi Halle. I assume you mean the boat needs to be *powered* to move without electricity? Floating it is no problem, any kind of wood or plastic will work, as long as it weighs less than the water it displaces. There are a few options for powering it: -sails....

Science for Kids: Chemistry, styrofoam balls, carbon molecules
styrofoam balls, carbon molecules, carbon atoms: I think you mean vaseline , which is a trademarked name for petrolatum, also called petroleum jelly. Mostly, it is a mixture of different length chains of carbon molecules containing between 20 and 25 carbon atoms. I d suggest you use a 20-carbon...

Science for Kids: Egg throwing Project, raw egg, feather bed
raw egg, feather bed, soft foam: Hi Sophia, Unprotected and landing on the lawn, the probability of the egg breaking is very high - 99.99% there is a small chance that it might not. Now if there was something like soft foam or a feather bed in the back yard or perhaps even a swimming...

Science for Kids: Electricity from Fruits, electrochemical reaction, zinc coating
electrochemical reaction, zinc coating, potato battery: Hi Jonathan -- fruits don t have any more electrical charge than any other plant. What they DO have is acid in the juice. That acts as an electrolyte, which forms a battery when you insert 2 different metals into the fruit -- usually one metal is zinc, and...

Science for Kids: egg dropping, simple science experiment, egg drop experiment
simple science experiment, egg drop experiment, blind taste test: It sounds like you are asking for a simple science experiment for a second grader, but it doesn t have to be an egg drop. Here are some fun ideas. 1) Laundry detergent experiment. Get a bunch of white rags. Make stains on the rags with chocolate,...

Science for Kids: energy flow in ecosystem, aquatic worms, green plants
aquatic worms, green plants, energy flow: Hi Chelsea -- there are 2 major types of energy flow in wetlands: herbivores eating green plants, then themselves being eaten by carnivores; and the breakdown of organic matter by fungi and bacteria, becoming food for aquatic worms and insects. This website...

Science for Kids: Forming my Hypothesis, nonionic surfactants, dish soap
nonionic surfactants, dish soap, which dish soap makes the most bubbles: Hi Emily, Yes, surfactants is what makes the bubble in detergents and soaps. Different kinds of surfactants can make different kinds of bubbles some that last longer and others that can become very big. For most detergents they now use ionic and nonionic...

Science for Kids: Fruit Seeds, peach pits, apple seeds
peach pits, apple seeds, fruit seeds: Hi Yaritsa -- help below. 1) yes 2) That s how they reproduce -- the fruit falls to the ground, (or gets eaten by an animal) and the seeds sprout to make a new tree. 3) All vegetables have seeds also. 4) If you provided the right conditions, they...

Science for Kids: Chemistry, musk, molecular weight
Science for Kids: Chemistry, musk, molecular weight, molecule

Science for Kids: Egg throwing Project, wet grass, second time
Science for Kids: Egg throwing Project, wet grass, second time, mud

Science for Kids: Electricity from Fruits, science fair project, slaves
Science for Kids: Electricity from Fruits, science fair project, slaves

Science for Kids: freezing rate of carbinated water, energy levels, hot water
Science for Kids: freezing rate of carbinated water, energy levels, hot water, cold water

Science for Kids: lava lamp, water and oil, polarities
Science for Kids: lava lamp, water and oil, polarities, densities

Science for Kids: Science Fair Project: Bubbles, science project, exploratorium
Science for Kids: Science Fair Project: Bubbles, science project, exploratorium, bubbles

Science for Kids: freezing rate of carbinated water, freezing rate of water, thermal conductivity
freezing rate of water, thermal conductivity, carbonated water: Hi Michelle -- the starting temperature is the easy question here. The colder the water you start with, the less time it will take to reach the freezing point. Now the first question -- first of all, don t confuse freezing POINT with freezing RATE. The...

Science for Kids: freezing water, aluminum cans, great conductor
aluminum cans, great conductor, freezing time: Hi Verna, The container can make a big difference if it is a good conductor of cold. Aluminum for instance is a great conductor of cold and this is one reason why Pop and Beer are packaged in Aluminum cans. Steel works well too. Glass would be number two...

Science for Kids: Ionic, covalent, and molecular bonds, covalent bonds, ionic bonds
covalent bonds, ionic bonds, freezing point: There is no meaningful experiment that you can do at a high school level on this subject. I suggest you pick a different experiment. Some things with ionic bonds have very high melting temperatures, while some are very low. Ditto for covalent bonds. ...

Science for Kids: Ionic, covalent, and molecular bonds, sodium cloride, ionic bonds
sodium cloride, ionic bonds, molecular bond: Hi Rebeca, This is a difficult question to answer. There is very little differentiation between Covalent and molecular bonds and even ionic bonds are also a type of molecular bond. Most ionic bonds are between a metal and a non-metalic molecule like...

Science for Kids: lava lamp, lava lamp, water and oil
lava lamp, water and oil, oil and water: Hi Tonya, Oil and water do not mix because of a difference in the density of the two substances. In a lava lamp the wax and other liquid are of different densities which allows the wax to circulate inside of the lamp. There are materials which act...

Science for Kids: mirrors and reflectivity, quality reflections, hot summer day
quality reflections, hot summer day, shiny surfaces: Hi Maren, Good question. A mirror is made with a very clear, very flat, with no faults - kind of float glass which has been specially prepared to accept a very thin layer of pure silver and then this is painted to seal it and baked to harden the paint....

Science for Kids: optics, homework questions, ray diagram
homework questions, ray diagram, opaque object: Draw one ray that is blocked by the object. Draw another ray that does not intercept the object. Depending on whether or not you have learned about diffraction, also draw another ray that is diffracted by the edge of the object. I do NOT do homework questions....

Science for Kids: Partical seperation, oil and vinegar, vinigar
oil and vinegar, vinigar, oil and water: Hi Harry Most will be oil and water or oil and vinegar. Then you can also have a pulpy orange juice and the pulp will settle to the bottom if left alone long enough. Sour Cream if not used for a while will allow the whey to come to the top (the clear liquid)....

Science for Kids: Plants, deer park elementary school, different kinds of plants
deer park elementary school, different kinds of plants, plastic baggies: Hi Deja -- yes, you can start plants from a leaf, but some plants are easier than others. Some are very difficult. It s also called cloning the plant, and it s usually done with a growing stem, not just a leaf, but both may work. For your project, you ll...

Science for Kids: Plants, plant environments, can plants grow without soil
plant environments, can plants grow without soil, outdoor plants: Hi J&M -- some help below. 1 -- no, ANY plant can be made to grow indoors if given the right conditions (light, humidity, temperature) to simulate where it grew outdoors. 2 -- None, biologically speaking, but some plants are easier to grow indoors than...

Science for Kids: physical science, water molecules, mass change
water molecules, mass change, science 8: Hi Emme -- with any state change, no mass is lost (the same for gasses, too). What fools people with ice is that as it freezes, it expands into a crystal structure that s larger than the water than made it. But the number of water molecules stays the same...

Science for Kids: physics experiments at indoor play centers, physics curriculum, chicago land area
physics curriculum, chicago land area, working science: Not a problem Ameet -- happy to help. I m generally too swamped at work to be available as a consultant unless the project is related to wind turbines (my job). But you can always contact me thru Allexperts, and my main email address is: danbob (at) otherpower...

Science for Kids: plants, energy from the sun, photosynthesis
energy from the sun, photosynthesis, respiration: This is a poorly-worded question. Plants get their energy from the sun, they get their oxygen (in the form of carbon dioxide) from the air, and they get minerals and other nutrients from the soil. This process is called being alive . The process by...

Science for Kids: plants, condensation, plants
condensation, plants, sun: Hi John, Yes, Depending on the type of plant, it is how plants pull water out of the ground. Place a plant into a plastic bag and place it in the sun. You will find that condensation will collect on the bag, some times over night. This shows the...

Science for Kids: plants, hungry bugs, leaf characteristics
hungry bugs, leaf characteristics, plant characteristics: 1) How many different leaf characteristics are there? That depends on what leaves you collected. Some will have rounded shapes, some will be pointy-shaped, etc. Look at your leaves and make your own categories. 2) Do all of the leaves on a plant...

Science for Kids: rechargable batteries, lead acid battery, alkaline cells
lead acid battery, alkaline cells, bearer of bad news: Hi David -=- I hate to be the bearer of bad news, but there s not much you can do. The cells in this type of battery are sealed, so nothing can be added to them. With a flooded lead acid battery like for a car, boat or trolling motor, you can add distilled...

Science for Kids: Science, simple invention, pea shooter
simple invention, pea shooter, flash light: Hi Tracy, How about an around the corner pea shooter This uses a flexi straw and a wad of paper. You can make it more fancy by putting a mirror on the straw so that you can see around the same corner. Then when some one comes walking down the hall,...

Science for Kids: Science, air bubbles, water and oil
air bubbles, water and oil, air oil: Air + water = water with air bubbles in it. Air + oil = oil with air bubbles in it. Oil and water won t mix. You ll get a layer of oil floating on top of a layer of water. If you bubble air into a mixture of oil and water, some of the air bubbles...

Science for Kids: Science Fair Ideas, electricity experiments, state capitals
electricity experiments, state capitals, quiz game: There are lots of fun and interesting electricity experiments you can do. Here are the two most popular: 1) Buy different brands of batteries and test them in your flashlight to see how many hours of light you get before the light bulb gets too dim to...

Science for Kids: Science Fair Project: Bubbles, molecular layers, rainbow colors
molecular layers, rainbow colors, river banks: Hi Brian, I will try to answer your questions but they may not be in numerical order. 11) a Bubble is generally made mostly of water but also a surfactant in the water like soap or detergent. In rivers it can be caused by decomposed plant materials...

Science for Kids: Science Fair Project: Helium, protons neutrons and electrons, oxygen molecule
protons neutrons and electrons, oxygen molecule, helium 2: Hi Eric, 1) Helium is an element. Like Oxygen and Nitrogen it is part of the air we breath every day. 2)But Helium is a very light gas and it is difficult to remove it from the air. It take a lot of air to make a tank of helium. The process takes...

Science for Kids: Solar Panel Project, flashlight bulb, solar power system
flashlight bulb, solar power system, volts and amps: Hi Katja -- the type of bulb to use depends on how many volts and amps your solar panel can put out. You ll want to measure that first with a multimeter, and then select a bulb to match. An LED light will probably be your best bet since they use so little...

Science for Kids: science, kinesthetic learner, independent variables
kinesthetic learner, independent variables, s yard: When you do an experiment, you try changing something to see what happens. For instance, if you walk into someone s yard, usually their big, scary-looking dog barks at you and growls, and sounds very mean. So you get scared. So you try an experiment where...

Science for Kids: science, plastic bottles, cans
plastic bottles, cans, allison: Hi Allison, That depends. If the containers are kept in a cooler with ice, the cans but out in the sun on a table, the metal of the can will allow the cold to be lost faster then the plastic since metal transmits temperature more effectively then plastic...

Science for Kids: science, plain water, salt solution
plain water, salt solution, salt water: Hi Alison, Plain water should boil faster but it may depend on many factors: 1) density of the salt solution 2) elevation 3) starting temperature for both solutions 4) container it is being boiled in 5) your definition of boiling (by thermometer...

Science for Kids: science fair projects, soil ph test kit, ph test kit
soil ph test kit, ph test kit, science fair projects: Hi Carley. Just like a human, plants can live for a long time with no food (fertilizer), but only a short time with no water. So the plant will die with no water, of course! But I m guessing that what you really meant to ask was what happens if you water...

Science for Kids: shell less egg drop, hard boiled egg, open cell foam
hard boiled egg, open cell foam, closed cell foam: Hi Tyler -- that s an interesting variation on the project. The best way to go about it will remain the same as I described in the first answer. For natural materials....lots of options. You can get cotton padding in all kinds of different densities, from...

Science for Kids: solar energy, solar mirror, light sensors
solar mirror, light sensors, mirror work: Hi Monica -- I don t know which solar mirror you are referring to, or what it does. BUT I can make a guess! It tracks the sun, right, and mirrors focus the beam on something to heat it up? If that s not what you mean, ask again with more details. If...

Science for Kids: stain removal, careful records, great experiment
careful records, great experiment, stain removal: Hi Allie, My guess would be a synthetic like nylon or perhaps a polyester. But it is dependant on the nature of the agent used to remove the stain and what the stain is made of. Some act as dyes and may never come out regardless of the fiber. I have...

Science for Kids: Teaching importance of Handwashing to elementary age, importance of handwashing, all kinds of posters
importance of handwashing, all kinds of posters, pathology department: Hi Carla, Great Idea. The web site below may have some posters you can use but I m not sure. there are similar sites that carry all kinds of posters. Some science catalogues also may have posters with this sort of thing. As for an experiment. Take...

Science for Kids: Tesla coil, neon sign transformer, tesla coils
neon sign transformer, tesla coils, science fair project: Hi David -- I d go straight with Tesla s original premise for the coil. Is it possible to transmit electrical power over a distance without wires? Of course radios do this too, but the tesla coil does it fairly well and very dramatically -- you can light...

Science for Kids: testing sugar content in food, alcohol content, different foods
alcohol content, different foods, sugar content: You could dump an equal amount of yeast (which eats sugar) into the different foods, and let it sit for a few days. Then come back and measure the alcohol content of the food (alcohol is the waste product of yeast.) The food with the most sugar will have...

Science for Kids: water, dixie cup, tupperware
dixie cup, tupperware, styrofoam: Hi Bret, It would be a toss up between a Tin or dixie cup. Depending on the thickness of the paper, this may be about as fast as the dixie cup. The tin however may beat both since metal transfers temperature faster then paper does. Sounds like...

Science for Kids: 3rd grade Invention Convention, rube goldberg contraption, rube goldberg
rube goldberg contraption, rube goldberg, triangle block: Hi Carla, A simple invention/machine. Does your son have match box cars and perhaps a match box car track? How about blocks and or tinker toys? If so, then you have all of the elements you need to make just the kind of thing your son needs to create....

Science for Kids: chemistry, protons neutrons and electrons, number of protons
protons neutrons and electrons, number of protons, moments in time: Hi Jean, He hypothisized that the weight of the elements were based on the structure of the elements including the number of protons, neutrons and electrons. He determined that the nature of some elements were very stable and others were highly reactive....

Science for Kids: dissolving sugar, sugar crystals, dissolving sugar
sugar crystals, dissolving sugar, types of sugar: Hi Sally, There may be many reasons for this from the temperature of the water to the size of the sugar crystals. Some sugar has a no clump coating on it which is a kind of waxy substance which can delay the time frame for the crystals to dissolve. ...

Science for Kids: EVAPORATION, postal scale, shallow bowl
postal scale, shallow bowl, evaporation: Hi Eva I would use a specific amount of water and soda, perhaps no more then 1 liquid ounce of each. Place each into a very shallow bowl or container having as much surface area as possible. Weigh both liquid and container on a good scale (like a postal...

Science for Kids: egg drop, egg drop experiment, open cell foam
egg drop experiment, open cell foam, closed cell foam: Hi Tysha -- I get lots of egg drop questions. Below is the best way to go about the experiment. Since you can t use foam--- you re going to need to accomplish the same thing with toothpicks. The critical thing will be your cradle around the egg. You ll need...

Science for Kids: egg drop, egg drop experiment
Science for Kids: egg drop, egg drop experiment

Science for Kids: science, conduction of heat, plastic glass
Science for Kids: science, conduction of heat, plastic glass, different materials

Science for Kids: friction, rolling friction, friction surface
rolling friction, friction surface, sand surfing: Hi Billy, The interface between the board or ski or sled and the snow, water or sand is the key to the speed, manuverability and control you have on these fun rides. The control comes from how we distribute our weight on the board. If we lean into...

Science for Kids: Heating a wire, nichrome wire, wire manufacturer
nichrome wire, wire manufacturer, handwarmer: Hi Leah -- that depends on your application, and your power source. What are you trying to heat up? The basic procedure for designing an electrical circuit like that is as follows: You ll need to figure out how much heat energy you need to make in watts...for...

Science for Kids: how can i heat?, electric hot plate, bunson burner
electric hot plate, bunson burner, open flame: Hi Rodrigo, Heat can come from different sources in the lab. 1) a bunson burner which uses a wick and alchol 2) a bunson burner which uses natural gas 3) an electric hot plate which uses electricity 4) a hot water bath which can be kept hot using...

Science for Kids: heating coil...small heater.., minimum energy consumption, immersion heater
minimum energy consumption, immersion heater, heating coil: I don t have enough information here to make a good recommendation. I don t know what is the problem you are trying to solve. Usually when people are making a steamer they don t use a wick. Usually they just use a coil of nichrome wire and immerse it...

Science for Kids: helium, gaseous element, boyancy
gaseous element, boyancy, baloon: Hi Elizabeth, Baloons float because they are filled with either Helium or hydrogen. Hydrogen can be rather dangerous but Helium is not. Most baloons are filled with Helium. Helium is a lighter then air gas and when captured in a baloon, will keep it afloat...

Science for Kids: Mini Solar Panels, charging car batteries, solar panal
charging car batteries, solar panal, mousetrap powered cars: Hi Chris. The solar panel from Radio Shack that came with the motor, was able to run the motor, but just not push the car? If so, then the car is too heavy, or the gear ratio is wrong. This page is a good reference on gear ratios for model cars, it s written...

Science for Kids: MST- math, science and technology, sciencebuddies org, science projects for kids
sciencebuddies org, science projects for kids, science fair projects: I would suggest going to the library and looking in the children s section for books about science. Many will help spark their interest. Involve the children in using math in their everyday lives. Which is cheaper - two 14 ounce bottles of ketchup, or one...

Science for Kids: Nail Polish ingredients (N.Y.C.), grade science project, 5th grade science project
grade science project, 5th grade science project, 5th grade science: Different colors will have different ingredients. Otherwise, if the ingredients were exactly the same, the colors would be exactly the same. The solvent used in almost all nail polish is acetone. Then they add different coloring agents. Each company...

Science for Kids: nail polish chemicals, almay cosmetics, natural botanicals
almay cosmetics, natural botanicals, alcholic beverages: Hi Casey, Natural botanicals and minerals are also chemicals but perhaps not as processed. Even very primative peoples have alcholic beverages. The key to finding a nail polish is finding one which has a solvent that is something other then a petroleum...

Science for Kids: i need help soon!!!, bean plants, quantitative result
bean plants, quantitative result, fertilizers: Almost nothing will completely dissolve pieces of meat. Some liquids will cause them to soften and turn into disconnected threads of muscle. Others will discolor the meat without dissolving it. This is more of a qualitative result than a quantitative result...

Science for Kids: Science fair question, red ice, green ice
red ice, green ice, dark shade: Hi Sara -- sorry for the delay in answering. white light, like sunlight, comes to us in a mix of different colors. The colors that you see from your different colored ice cubes are those colors that are reflected from the ice to your eye. Objects that look...

Science for Kids: Science / Heat Transfer, heat transfer, leonardo
heat transfer, leonardo, aluminum: Hi Leonardo -- aluminum conducts heat better than a glass or plastic bottle, so the contents of the can will heat or cool faster. For the same reason, the contents of a glass or plastic bottle will hold their temperature for longer...they insulate more, and...

Science for Kids: Science project, science project ideas, graph time
science project ideas, graph time, variables type: Your question should be how fast the bubbles escape in soda, not why. Variables - type of soda, temperature of soda and perhaps type of container (plastic or can) Get your data, then graph it. Time v. temperature for the same soda, or hold the temperature...

Science for Kids: Science project, time interval, science project
time interval, science project, temperature readings: Hi Hilary Sounds like you may be helping your son too much. It is very important that he does the experiment with just some supervision. He may need help reading the temperatures but show him how and make it a learning experience. One of the key important...

Science for Kids: Science project (help), cotton balls, rubbing alcohol
cotton balls, rubbing alcohol, oil paint: You won t find anything online or in a book. Do the experiment yourself and see what happens! Get a bunch of different liquids and try it yourself. I suggest you use cold water, hot water, vegetable oil, paint, rubbing alcohol, bleach, and acetone (nailpolish...

Science for Kids: Sink and Float, cell sponge, natural sponge
cell sponge, natural sponge, cell structure: Hi Debbie, What you are looking for is a open cell sponge. This will stay on the surface and as it absorbs water into the cell structure, it looses bouyancy and sinks. Natural sponge may work better then artificial sponge but both may work. Also a wad...

Science for Kids: Solar Energy, energy information administration, eia doe
energy information administration, eia doe, search google: Hi Ava. I m not allowed to do this kind of research for students. You have to learn how to find this information yourself, and it s easy online. You can get ALL of this info you need from the US Government, at the Energy Information Administration: http://www.eia.doe.gov/...

Science for Kids: science, rare earth elements, north and south pole
rare earth elements, north and south pole, material classes: Hi Moe, Magnets attract materials which are magnetic. This means that they must fit into one of several material classes or contain one or more of these material classes. These materials include Iron, Cobalt, and some of the rare earth elements like Nyobium....

Science for Kids: science, soda cans, heat conductor
soda cans, heat conductor, sophisticated lab: Hi Allison. It s not the caffeine, since it s present in such tiny amounts--soda is 99.99% water and sugar, plus tiny amounts of flavoring and caffeine. What you are most likely dealing with is variables you did not know were involved in the experiment. You...

Science for Kids: science chemestry, baking soda, tap water
baking soda, tap water, chemestry: THere is no answer to the question you have asked because there is no scientific meaning of the word better . Here are some possible questions you could ask. For each one, it s easy for you to do the experiment at home and find out the answer for yourself....

Science for Kids: science project, science fair project, science project
science fair project, science project, sugar content: Hi Tiana. Soda is pretty much just sugar and water. So all your carbohydrates will be from the sugar. It s fairly easy to measure, you just boil away the water. This website and video show exactly how to do it: http://marshallbrain.com/science/sugar-in-soda.htm...

Science for Kids: solar energy, massive stone fireplace, photovoltaic cells
massive stone fireplace, photovoltaic cells, homework question: This sounds like a homework question. I suggest you read the wikipedia articles on solar energy at www.wikipedia.com Generally, solar energy is used in one of these ways 1) convert directly to electricity using solar cells (also called photovoltaic cells)...

Science for Kids: sunlight energy, sunlight energy, dead plants
sunlight energy, dead plants, plants and animals: Hi Johanna. In a food chain it all boils down into producers, consumers, and decomposers. All the energy comes from the sun. Producers -- mostly green plants. They harvest energy from the sun, turn it into food for themselves, and then are in turn eaten...

Science for Kids: tornadoes, science fair projects, heating elements
science fair projects, heating elements, science kit: Hi Hank. This is a new one for me, you are on the cutting edge of science fair projects! About the best I can do is suggest some different vortex simulator projects. You ll need heating elements and thermometers to adjust the temperature as you observe...

Science for Kids: Yeast fermentation, yeast fermentation experiment, molecular biology building
yeast fermentation experiment, molecular biology building, yeast saccharomyces cerevisiae: Cerevisiae ferments many, but not all sugars. Here s the abstract of a journal paper explaining what this yeast does to sugar. Abstract The specificity of Saccharomyces cerevisiae yeast on the removal of carbohydrates by fermentation was studied....

Science for Kids: 5th Grade Science Project, grade science project, 5th grade science project
grade science project, 5th grade science project, 5th grade science: Hi Mike, There was a recent Mythbusters program which demonstrated that filling a foot ball with Helium did not make much difference in loft time and as far as I know the temperature of the ball does not make much of a difference either judging from the...

Science for Kids: boat lock, rubber gasket material, electric water pump
rubber gasket material, electric water pump, silicone caulk: Hi Emily, You will some help on this from a parent potentially. The basic design will require 2 pieces of Plexiglass, wood for a base and sides and 2 segments of piano hinge (6 long) and wood for the lock doors and some rubber gasket material (weather...

Science for Kids: Calcium, atomic number 20, electron shells
atomic number 20, electron shells, diagram of an atom: Hi Sam, When doing a chemical formula or when trying to determine the out come of a chemical reaction, the proper way to indicate the number of Molecules of a substance resulting or to be included in the reaction is as you have noted, in the front of the...

Science for Kids: carbonation of soda, sticky goo, liter bottles
sticky goo, liter bottles, cup measure: Hi Abbie, This is a hard experiment for a third grader due to the amount of work it takes to get good measurements. I think that with supervision an alternate would work better for her. I would recommend the following: Select 6 different soft drinks...

Science for Kids: chemical science, liquid detergent, bubble film
liquid detergent, bubble film, 6th grader: Hi Leah. There are too many variables and not enough information to give you a definitive answer, but I can take some guesses. First of all, some things to consider: what was the hypothesis of the experiment? How are you measuring the amount of suds you...

Science for Kids: chemistry, bees wax, screw top
bees wax, screw top, adult supervision: Hi Stephen, This is not as easy as it may seem. Many of the liquids you indicate are not easily flamable due to very high Flash Points . The best way to do this test is with a wick. If you can find an old fashioned glass bunsun burner with a wick coming...

Science for Kids: coke cans, coke cans, coke cola
coke cans, coke cola, humid air: Hi Daniel, Most cans are now made of Aluminium. Some are made of steel. But those used by Coke-Cola are for the most part Aluminium. This metal is used for several reasons, it is easy to get, easily formed into a can, very good for refrigeration and easily...

Science for Kids: about coke cans, coke cans, sodium bicarbonate
coke cans, sodium bicarbonate, exploding bubbles: Hi Renae, 1) what you have observed is called condensation. The cold can from the fridge draws moisture out of the warm air in the house. A dehumidifier works the same way or an airconditioner works the same way but pulling extramoisture from the warm...

Science for Kids: Density, density of salt water, little holes
density of salt water, little holes, salty water: Eggs have a shell. The shell has little holes in it, called pores. Water and air can move through the holes. If you put an egg in very salty water, some of the water will leave the egg through the holes, and salt will enter the egg through the holes. This...

Science for Kids: Diff between salt water, poison and water, light defraction, salt water solution
light defraction, salt water solution, mass spectrograph: Hi Ruth, I have had very young science students get help from local colleges, universities and even the forensics labs of some police departments and the FBI. Many institutions are eager to help since they want to encourage the sciences especially in girls...

Science for Kids: Egg Drop Competition, egg drop competition, plastic drink bottles
egg drop competition, plastic drink bottles, giant rubber band: Use your brain and experiment. Try stuff. If it doesn t work, try something else. That s called the Scientific Method. The cardboard boxes, soda bottles and straws are squishable and will absorb impact well. If you use the soda bottles for energy...

Science for Kids: Egg drop/launch competition, plastic drink bottles, cardboard rolls
plastic drink bottles, cardboard rolls, drinking straws: Hi Micheala Take a 2L empty drink bottle. Cut an egg sized hole in the bottom. (Be careful not to cut yourself) keep the peice you cut out. Then take a leg from nylons and 6 from one end tie it off in a knot. Feed the knot into the small opening at the...

Science for Kids: Electricity, exact opposites, 10 awg wire
exact opposites, 10 awg wire, thick wire: Hi David. Generally we talk about resistance in a conductor, measured in Ohms, rather than conductivity, measured in Mhos (get the joke? It s for real though!). They are exact opposites of each other for the math. The conductivity (or resistance) depends...

Science for Kids: Explosion in nature, empty soda bottle, logan air
empty soda bottle, logan air, camp counselor: Hi Logan, Air pressure explosions are generally cool and safe. You can also do the exploding soda but this could be very messy. Of course over blown balloons will burst, you can make empty soda bottle explode buy need a lot of air pressure for that,...

Science for Kids: egg drop, drop deer, vacuum bag
drop deer, vacuum bag, egg drop: Hello Harry. The vacuum bag or air has nothing to do with it... The key is distribution of force--you need to spread the force of impact evenly around the entire surface area of the egg. There should be NO places where the padding does not touch the egg....

Science for Kids: egg drop project, egg drop project, physics terms
egg drop project, physics terms, corrugated cardboard: It has nothing to do with physics and everything to do with common sense. Common sense says if the unprotected egg hits the ground it will break, so you need to protect the egg. It doesn t make sense to protect it with rigid breakable stuff like glass....

Science for Kids: Explosion in nature, baking soda, slat
Science for Kids: Explosion in nature, baking soda, slat, vinger

Science for Kids: egg drop project, shock, physics
Science for Kids: egg drop project, shock, physics

Science for Kids: science, gfu
Science for Kids: science, gfu

Science for Kids: Insulated shoebox house., watt light bulb, refrigerator light
watt light bulb, refrigerator light, air gap: Hi Zack to insulate your houses,, you can use the same materials. There is builders foam with different R ratings and you can use it or you can use egg crate stuffed with bubble wrap (small bubble) to fill to back side voids. For a heat source you...

Science for Kids: magnets and capacitors, types of capacitors, plasma conduit
types of capacitors, plasma conduit, type of capacitor: Hi Mohammad, It depends on the type of circuit and the type of capacitor. There are many types of capacitors: There is what is called a flash capacitor used on cameras and flash equipment There is what is called a high intensity capacitor used on special...

Science for Kids: Science project, homemade lip gloss, science project
homemade lip gloss, science project, hypotheses: Many possible hypotheses 1) Homemade lip gloss costs less than store-bought 2) Homemade lip gloss looks better than store-bought 3) Homemade lip gloss tastes better than store-bought 4) The user cannot distinguish between homemade and store-bought...

Science for Kids: Scince Fair Project, howick intermediate, empty freezer
howick intermediate, empty freezer, nonfat milk: Good question. I don t know the answer. Do the experiment and find out for yourself. Let me know what results you get. I bet that milk will freeze slowest since it has fat in it. Unless you use nonfat milk, in which case I have no guess at all. To...

Science for Kids: Sound, science project, frequency sound
science project, frequency sound, low frequency: Hi Alma, The best way to show what sound travels best through a solid, liquid or gas. I believe that a low frequency may do the trick since this kind of sound is produced by both whales and elephants and these low frequency sounds travel for many miles...

Science for Kids: science, gravel roof, roof shingles
gravel roof, roof shingles, tile counters: A traditional Western-style house obviously uses very different materials than a teepee, Mongolian yurt, New Guinea log house, etc. Western-style house: wood copper (for wiring) plastic (pipes and insulation for wiring) asphalt and gravel (roof shingles)...

Science for Kids: science, gas carbon dioxide, science experiment
gas carbon dioxide, science experiment, consistent results: Hi Zahra -- The easiest way to do an experiment is to use plastic bottles of different sodas, all at exactly the same temperature. Seal each one in a ziplock bag, and carefully open the cap thru the bag without popping the bag seal. Let the bottles of soda...

Science for Kids: science, conduction, convection
conduction, convection, sunlight: Hi Jailan -- that depends entirely on the density of the soil, and what the source of heat is. Sunlight, convection, conduction, or what? Same with the water -- what is heating it? Sunlight, or a stove? I can t answer the question without more specific...

Science for Kids: science fair, science fair project, tiny bubbles
science fair project, tiny bubbles, air bubbles: Hi Lucas, Styrofoam and other similar foam products are good insulators because they do not transmit heat or cold very well. When styrofoam is made, it starts out as a liquid but with the addition of a special chemical, it begins to foam. The foam traps...

Science for Kids: soda, diet drinks, flavor enhancers
diet drinks, flavor enhancers, corn syrup: Hi Manu,, What does soda contain. Well that depends on the soda. A cola contains 95 purified water, Carbonation in the form of dissolved CO2 gas, food coloring, (Carmel color), red dye (some times), a sweetener like corn syrup, sugar or aspartame/splenda...

Science for Kids: umbrella construction, wooden dowels, plastic grocery
wooden dowels, plastic grocery, grocery bag: Hi Sabina. This is really a tough question! I could not find any resources online for building an umbrella. So, my suggestion is to buy an umbrella at the store...maybe a thrift store so it s not expensive. Then you have a model to work from. Metal is...

Science for Kids: Ventlation for Model House, packing peanuts, heat ducts
packing peanuts, heat ducts, foam board: Hi Ladies, The best material to use is some kind of foam board like foam core several layers thick or perhaps packing peanuts. For windows, you can use bubble wrap 2 layers thick so that the bubbles are facing inward and nesting between each other. This...

Science for Kids: Assignment on heat and stuff., science assignment, semster
science assignment, semster, everyday objects: The best, cheap, easily available insulation is styrofoam, but it s hard to make it the right shape to fit around a can. You can use a big thick fluffy towel, blanket, or bedspread. You want to make a thick layer around the can through which heat will not...

Science for Kids: Calcium, atomic number 20, electron shells
atomic number 20, electron shells, diagram of an atom: Hi Sam, When doing a chemical formula or when trying to determine the out come of a chemical reaction, the proper way to indicate the number of Molecules of a substance resulting or to be included in the reaction is as you have noted, in the front of the...

Science for Kids: chemistry, naptha, hot plate
naptha, hot plate, bounces: Hi GST Napthalene balls can be made to dance by placing them on a hot plate. This causes the naptha to volatilize (turn into a gas) and Bounces or moves as a result. But this can be dangerous and should only be done under supervision since a naptha...

Science for Kids: Experiment with magnets, rare earth neodymium magnets, magnet store
rare earth neodymium magnets, magnet store, science: Hi Andree -- Magnets are my specialty (I work for a magnet store!). This page probably has the best collection of experiments that you can do with rare-earth neodymium magnets: http://amasci.com/neodemo.html Our website also has some experiments listed:...

Science for Kids: FACTS ABOUT FRICTION, microwave ovens, static electricity
microwave ovens, static electricity, steel wheels: Hi Alan, 1) trains have steel wheels and run on steel track. but it is the weight and friction t hat allows the wheels to turn 2) Car engines have belts to run various parts of the engine. These belts use friction to turn these other parts of the engine...

Science for Kids: FACTS ABOUT FRICTION, motor bikes, football players
Science for Kids: FACTS ABOUT FRICTION, motor bikes, football players, friction

Science for Kids: ........
Science for Kids: ........

Science for Kids: h2o?, picture of a water molecule, san francisco california
picture of a water molecule, san francisco california, sue kayton: H2O means there are two atoms of Hydrogen (H) and one atom of Oxygen (O). Here s a picture of a water molecule. The Oxygen is the big red atom in the middle, and the Hydrogens are the two little white ones. Of course, in the real world, they aren t...

Science for Kids: Does every human taste receptor work differently? Do we enjoy the same kind of taste sensation?, taste sensation, human taste
taste sensation, human taste, sweet and salt: No, we don t share the exact same experience. People who smoke or chew tobacco can t detect subtle tastes. People who are used to spicy food don t notice small amounts of spice, but people who are used to very bland food will get upset by even a little bit...

Science for Kids: Does every human taste receptor work differently? Do we enjoy the same kind of taste sensation?, taste receptors, taste sensation
taste receptors, taste sensation, human taste: Interesting questions! From what I can tell, you run into the same thing with smell--it s again a defense mechanism, like taste, that can warn us of poisons and other dangerous things. So while everyone may agree that certain smells are pleasant or unpleasant,...

Science for Kids: Does every human taste receptor work differently? Do we enjoy the same kind of taste sensation?, vanilla ice cream, licorice flavor
vanilla ice cream, licorice flavor, taste receptors: Hi Rambo, Good question. It will depend on several factors, first of all the nature of the food stuff and secondly our own experiances and finally, our age(condition of our teeth). Mouth feel is a very important factor in the design and creation...

Science for Kids: how to make an investigatory project on energy conservation?, how to make an investigatory project, hypothesis test
how to make an investigatory project, hypothesis test, kilowatt hours: Hello Name Withheld ;-) An investigatory project is also called an experimental project. In this type of project you ask a question, construct a hypothesis, test your hypothesis using an experiment and draw conclusions from your experiment. Because...

Science for Kids: magnetism, magnetic field changes, metallic artifacts
magnetic field changes, metallic artifacts, iron artifacts: Hi Kristie -- it s really very interesting. Of course in archeology studying more modern events, where people had iron tools, magnets can be used to find iron artifacts. And of course metal detectors use magnetic fields to find non-iron, metallic artifacts....

Science for Kids: making ice blocks, heat conduction, cloudy ice
heat conduction, cloudy ice, instructable: Your best bet is trying to do it like the folks that make ice sculptures. In your freezer, the ice is forming from the outside in, and gas and sediment get trapped. That s why the center of ice cubes are cloudy. Ice sculpture makers use a fairly slow freezing...

Science for Kids: Purge Dip System and Hydrostatic Pressure, walter fendt, hydrostatic pressure
walter fendt, hydrostatic pressure, refering: Hi Yuliana, WOuld you be kind enough to tell me what the application of this purge dip system is? The illustration of hydrostatic pressure provided by the first website does not make mention of purge-dip. I have looked else where on the internet with...

Science for Kids: Soft Drinks, coke pepsi, flavoring ingredients
coke pepsi, flavoring ingredients, san francisco california: A quick-and-dirty way to measure carbonation is to measure the pH of the soda. CO2 + H2O = carbonic acid. The more carbonation, the more acidic the soda is. It is influenced, of course, by the presence of flavoring ingredients. To measure sugar, let...

Science for Kids: science, color texture, volume color
color texture, volume color, scientific word: Matter is the scientific word for stuff . Everything you touch is matter. Dirt, water, wood, food, telephones, everything. Everything is made of atoms, and atoms are matter. There are many things you can measure about matter. You can measure its...

Science for Kids: ........, popsicle sticks, ball shape
popsicle sticks, ball shape, straws: Wrap the egg in a little bit of tape, but not too thick. Then make a tight cage around the egg using zillions of straws to act as a cushion. Make sure the egg can t move inside the cage. Use as many straws as the rules will allow. The straws will crush...

Science for Kids: What is brain role in the perception of vision?, retinal ganglion cells, nerve impulses
retinal ganglion cells, nerve impulses, nerve cells: Hi, yes it is commonly agreed that yellow is the most difficult colour to see on white paper. This is because yellow is the most luminescent colour other than white, this means an object reflects most of light that shines on it, if yellow is on white it...

Science for Kids: What is brain role in the perception of vision?, human vision, catara
human vision, catara, retina: Hi Rambo -- since I m not a psychologist, I ll answer the questions that I can briefly, and refer you to some other information. There are whole textbooks written about this topic, none of which I have for reference. What is the brain role in human vision?...

Science for Kids: CANDY CRYSTALS-URGENT DUE TOMORROW!!! PLZ HELP, sugar solution, due tomorrow
sugar solution, due tomorrow, red bull: Hi Daniela, I highly concentrated sugar solution capable of making sugar crystal candy must not have other chemicals mixed in because it will interfere with the crystal making process. The vinegar binds to some parts of the sugar to prevent it from building...

Science for Kids: Encouraging my scientific daughter, school science teacher, cheese in the fridge
school science teacher, cheese in the fridge, petre dish: Hi Angie, Very good! I love it when a mom or dad want to encourage their daughters in the sciences. My own daughter became a Marine Biologist and is a high school science teacher at a special science charter in the Houston TX area. Well on to your...

Science for Kids: physics, windmill
Science for Kids: physics, windmill

Science for Kids: Do our senses really perceive the real world?, wavelengths of light, compression and rarefaction
Science for Kids: Do our senses really perceive the real world?, wavelengths of light, compression and rarefaction, wavelenghts

Science for Kids: Do human visual and colour receptor work differently? do human have the same visual experience?, color swatches, normal vision
color swatches, normal vision, colour vision: You can do controlled experiments showing people pictures of things. People with normal brains and normal vision will see the same thing. Of course, people who are colorblind, are blind in one eye, or suffer brain damage will see something different. ...

Science for Kids: Do human visual and colour receptor work differently? do human have the same visual experience, visible light spectrum, color perception
visible light spectrum, color perception, infrared spectrum: Hi Rambo, My wife is a graphic artist and when she does a color correction to a photograph I have taken, the color is different from what I percived it to be when I took the photograph. In the same way, if my daughter takes a photograph, my wife will color...

Science for Kids: olefactory nerves in nose, olfactory nerves, sciencemag
olfactory nerves, sciencemag, sense of smell: Hi Kaif -- all I can find on the topic is that loss of the sense of smell is a common complaint as people get older -- BUT that it may not be actual degradation or changes in the olfactory nerves that cause it....it could be changes in the ability of olfactory...

Science for Kids: physics, physics project, working model
physics project, working model, budget: Firstly, how old are you? I have a few ideas but there is no point me listing them at the minute as I don t know what grade you re in. Give me a little idea of what sort of things you are able to do ad what sort of budget you have. Is this a project that...

Science for Kids: pounds of pressure on lower back, upper torso, bending moment
upper torso, bending moment, pounds per square inch: People don t put pounds of pressure on their back. They put pounds per square inch on their backs. You d need to know the area of the disk in your vertebra. Each vertebra is a slightly different size. Let s assume the disk is 2 square inches in area....

Science for Kids: School Project, cavity wall insulation, wasting energy
cavity wall insulation, wasting energy, house builders: Insulation is a brilliant project especially with the current worries about global warming and wasting energy. The first thing you need to do is do some research on what sort of materials keep heat in. This will give you some good ideas about the sorts...

Science for Kids: Solar Heat, car interiors, solar heat
car interiors, solar heat, patentstorm: According to a US patent, the temperature can go up as high as 200 degrees, but this is very rare. Typically car interiors are 40-60 degrees hotter than the outside air. http://www.patentstorm.us/patents/6345767/description.html Here s a nice explanation...

Science for Kids: Do our senses really perceive the real world?, electrical signals, stars in the sky
electrical signals, stars in the sky, sound waves: Engineers and scientists see the world very differently from philosophers. Philosophers ask questions like, If a tree falls in the forest and nobody hears it, does it make a sound? Engineers think that s a really stupid question. Of course, it makes a...

Science for Kids: Do our senses really perceive the real world?, electrical signals, world question
electrical signals, world question, stars in the sky: Hi Rambo, We are conversing via email. I am human so is the person sitting next to me. Thus we have proof of our existence. Since our conversation contains intellegent use of words and pharses, we know that we each think and think differently from each...

Science for Kids: step up voltage, ac converter, milliamps
ac converter, milliamps, volts: Yes, you can step up the power to 230v. 10 Watts at 230 volts means you will have around 30 milliamps of current, which is a very tiny amount. If you are generating DC, you will need to convert it to AC, then use an AC-AC converter to step up the voltage...

Science for Kids: Wat kind of wood, rc warship, spruce pine
rc warship, spruce pine, balsa: Almost every kind of wood floats. To build a radio-controlled ship, usually people use spruce, pine and balsa. Balsa is very light weight, but not strong. Spruce is much stronger, but heavier. And pine is very cheap. Usually people use spruce for structure,...

Science for Kids: adhesives, gorilla glue, glue one
gorilla glue, glue one, rubber cement: Hi Eduan My son did a science fair experiment a long time ago in which he designed and built some popcicle stick bridges. He built a total of 5. One using white glue, one using super glue, one using gorilla glue, one using rubber cement and the last one...

Science for Kids: Biology, independent variable and dependent variable, control group
independent variable and dependent variable, control group, test subjects: When you do an experiment, you test the effect of something. So you divide the test subjects into two groups. One is normal, and the other does something you are testing for. So if you want to see if eating candy gets you fat, one group (the control group)...

Science for Kids: brushless motors, bridge rectifier, radio controlled plane
bridge rectifier, radio controlled plane, electric speed: Hi Steve -- most likely you can use it in reverse, but how much power you can get at what RPM will depend on the motor. THe lower the RPM rating, the batter -- you won t have to spin it as fast. You ll need to eliminate the speed controller circuitry entirely....

Science for Kids: Drums, cool science experiments, wavelength frequency
cool science experiments, wavelength frequency, snare drum: Hi Laura Thanks for the clarification and your question. One option your children have is creating a study of sound waves. Sound waves change in terms of wavelength, frequency (time between waves), amplitude (size), etc... depending on what kind of...

Science for Kids: dispersion, state of agitation, colorant
state of agitation, colorant, tap water: Hi Jemima, Food Coloring disperses at different rates depending on the chemistry of the liquid. In gassy mineral water, the dissolved gasses help to disperse the colorant faster because it is always in a state of agitation. In tap water or still water,...

Science for Kids: physics working model, website www
Science for Kids: physics working model, website www

Science for Kids: growing bioluminescent bacteria, high school biology, bioluminescent bacteria
high school biology, bioluminescent bacteria, biology labs: Peptone is Any of various water-soluble protein derivatives obtained by partial hydrolysis of a protein by an acid or enzyme during digestion and used in culture media in bacteriology. That means they use it to grow bacteria on petri dishes. Very common...

Science for Kids: helium, electric switch, helium
electric switch, helium, winch: Hi Erin, You will need to tell me more about the project and what you want to do. Are you using the helium in a balloon and as it goes up it turns off a photo electric switch causing a winch to bring the balloon back down? Or is it an experiment that...

Science for Kids: What kind of caterpillar is this?, larva, caterpillar
larva, caterpillar, dill: Hi Jessica, With out a photo of the caterpillar it would be very hard for me to identify what kind of larva it might be. If you have a photo of it, please send it to me. rsalier@hotmail.com with caterpillar in the subject line. I will try to determine...

Science for Kids: PLs help out, matter sir, silcon
matter sir, silcon, germanium: Hi Aarju -- This is a college-level question, and so a bit advanced for science for kids. In any case -- I was able to find references to semiconducting clusters online only as links to scientific textbooks. No articles or websites to be found. So -- I think...

Science for Kids: Puddles, saran warp, frogs tadpoles
saran warp, frogs tadpoles, baby frogs: Hi Brooke, Thanks for asking. There are many different types of animals that can live in a puddle. Oftentimes, larger animals like frogs and insects will lay their eggs in a puddle, and the larvae (baby frogs - tadpoles, and baby insects) will live...

Science for Kids: physics &chemistry, nuclear fusion reactors, nuclear fusion energy
nuclear fusion reactors, nuclear fusion energy, nuclear chain reaction: Hi Sheshan -- what we use in nuclear power plants is called nuclear fission. When you bombard an atom of a nuclear fuel such as Uranium with neutrons, the nucleus splits, releasing tremendous amounts of heat energy--and a byproduct of more neutrons, which...

Science for Kids: physics working model, archimedes screw, demo images
archimedes screw, demo images, inclined plane: Hi Shubhi --- an Archimedes screw looks fairly complicated to build, but there s an easier way! The same principle of a moving, inclined plane can be done using hose or tubing, instead of building a complicate screw shape. See the photo here: http://www.columbia.edu/cu/physics/demo-images/2-Fluid%20Mechanics/2B60-1_1_archimedes_screw.jpg...

Science for Kids: Do we really, level atoms, splitting image
level atoms, splitting image, true humans: Hi Rambo, 1) in your mind, when you send me an email, do you get the answer that you expected? Or is the answer different in some way or totally different then you expected? The mind is not the brain but rather the stored memories, electrical impulses...

Science for Kids: Do we really "SEE" the real world with our EYE?, level atoms, splitting image
level atoms, splitting image, true humans: 1.When we look at a apple? do we really SEE the apple with our eye? http://www.cycleback.com/eyephysiology.html -Is it true humans do not see a direct representation of external reality, but a translation formed by their eyes and mind? In other word,...

Science for Kids: Science Principles, perpetual motion machines, einstein s theory of relativity
perpetual motion machines, einstein s theory of relativity, theory hypothesis: Hi Debbie -- it s actually pretty confusing. A scientific law is considered a universal, invariable fact of the physical world. It can be written in one sentence. It has been proven both empirically and mathematically, and has never been seen to fail....but...

Science for Kids: Getting Started!!!!!!!!!!!!!!!!!!!!!1, school science fairs, middle school science
school science fairs, middle school science, math specialists: Hi Dwight, This is not an area of expertise for me. I am not a science teacher, I am a science fair judge. The STEM and MST appear to be types of curricula to aid in the teaching of these key areas. From a science fair perspective, the kids and teachers...

Science for Kids: salt water thingy(14 years old from 8th grade), salt water solution, mineral salts
salt water solution, mineral salts, petri dish: Given enough time, all the water will evaporate, leaving behind whatever minerals, salts, and whatever else was dissolved in the water. Generally this will be white crystals of various mineral salts. You can do an experiment with this....use a petri dish of...

Science for Kids: Can I say it is highly possible for human to perceive the same taste?, three flavors, veriations
three flavors, veriations, taste of chocolate: Hi Rambo, Yes, for the 4 basic tastes, I believe that we all taste them the same way or very nearly so. The salty taste is one which is recongized by all cultures and since salt is required by the body, this flavor is a key to our survival. Sweet,...

Science for Kids: Can I say it is highly possible for human to perceive the same taste?, brussels sprouts, color blindness
brussels sprouts, color blindness, visual cues: Different people perceive different tastes when eating the same food. If I eat a cookie, I may think this is very salty but someone else may think it tastes sweet. Scientific studies have shown definitely that people do NOT perceive taste the same. You...

Science for Kids: science for preschoolers, scotch tape, wet fingers
scotch tape, wet fingers, paper pinwheels: Hi Julie. That s tough, for the pre-school level, but I think you should still be able to introduce a simplified version of the scientific method of hypothesis / variables / experiment / conclusion. For wind power, paper pinwheels would be ideal. A example...

Science for Kids: shadows & Sunny days, making a sundial, saran wrap
making a sundial, saran wrap, earth revolves around the sun: Wow! That s a difficult question. I had to look part of it up myself! Think about the earth as a gigantic ball of rock (which it essentially is). As it rains down on the rock, the rain erodes (eats away) at the rock, and the smallest bits and pieces...

Science for Kids: Tesla Coils, tesla coils, tesla turbine
tesla coils, tesla turbine, voltage electrode: Hi Francis! You are right -- Tesla coils are dangerous. There is NO safe Tesla coil that you can build! However -- you can buy/build a tiny one that will light up neon lamps and fluorescent tubes, create plasma inside a fluorescent tube, and other fun...

Science for Kids: telsa coil, tank capacitor, unit of capacitance
tank capacitor, unit of capacitance, capacitor value: Hi Daniel --- I regret to inform you that you already know a whole lot more about building Tesla coils than I do! My neighbor has built a few of them, and we have experimented with them in the shop -- but he is no expert either, and got all of his info online....

Science for Kids: which is true?, little bit blue, london science museum
little bit blue, london science museum, reddish colors: Hi Jack, That s actually a great question because as kids, we all learn that water is blue because of the sky... Scientists believe that the sky is blue because of the oxygen and nitrogen in the atmosphere. The white light produced by the sun (white...

Science for Kids: Weight of sugar in tea, hot tea, science unit
hot tea, science unit, primary teaching: Hi Darlene, What do you think will happen to it? Can matter disappear? no. But when it disolves into the hot tea, it appears to disappear. In reality, the sugar goes into solution. Does this add weight to the cup? AH!! Your first experiment..........

Science for Kids: 6th grade science fair project, grade science fair project, 6th grade science
grade science fair project, 6th grade science, water boxes: Water has a very high heat capacity and high thermal conductivity, so it s a great material to use to study temperature changes and heat flow. I d get a jar of water at a known temperature (either at the boiling point or at the freezing point) and then...

Science for Kids: Alternative energy - making a biodigester, biodigester, vegetable waste
biodigester, vegetable waste, science fair project: Hi Victoria, Sounds like a good idea but you won t know untill you try it out I would suggest that you also run one tube into a water filled glass jar upside down in a tub of water so that as the gas from the digester is produced it can push into the...

Science for Kids: alcohol content, alcohol content, sugar content
alcohol content, sugar content, hydrometer: Distilling the liquid will tell you how much alcohol is in it. Or you can buy a commercial alcohol-measuring device. Here are some links http://www.misco.com/products/PA203-003-128-129-194-195.html http://mybeer.getpaidfrom.us/2008/03/11/how-to-measure-alcohol-content-with-a-hydrometer/...

Science for Kids: amoebas, species types, intestines
species types, intestines, running water: Hi Cindy, There are a few different species (types) of amoebas that act as parasites (things that survive by hurting something else). These amoebas can get into a human body through human waste as well as water or food that is contaminated (has human...

Science for Kids: The Big Bang Theory, big bang theory, religious theories
big bang theory, religious theories, belief: Hi Haley -- your question is impossible to answer. Science relies on analyzing experimental data to explain the unknown, while religion requires a belief in the supernatural to explain the unknown. Perhaps a better way to say it is that nothing is impossible--which...

Science for Kids: bridge building, curve of the arch, two arches
curve of the arch, two arches, bridge contest: Hi Eileen, This will be very hard to do with only 100 toothpicks. But it can be done. The key is to build strong beams and an arch. Design a very shallow arch where the center of the arch is 5 cm and the anchoring ends are on the ground . From ground...

Science for Kids: Carpet stains, carpet stains, organic stains
carpet stains, organic stains, inorganic stains: Hi Rachel, Stains can be caused by organic or inorganic sources. An example of an organic stain would be blood or grass while inorganic may be rust or an acid like hydrochloric acid. Some organic acids like Ureaic acid (animal urine) or Wine (Acetic Acid)...

Science for Kids: experiment that my duaghter has to do, can plants grow without soil, duaghter
can plants grow without soil, duaghter, good question: Hi Ana, That s a good question. Soil provides nutrients or food for the plants. As seeds have their own food, most seeds can germinate (open and sprout) without soil. Some plants can live without soil entirely (e.g. a plant called salvinia). Many...

Science for Kids: Gravity, 12 inch ruler, center of gravity
12 inch ruler, center of gravity, s center: Hi! That s a good question. Believe it or not, every single object has a center of gravity. Usually, the center of gravity is somewhere on the object, but sometimes it is actually outside the object! The center of gravity is the spot where, if you...

Science for Kids: How do you grow algae??, aquarium water, fish tank
aquarium water, fish tank, science project: Hi Lesley This sounds like a great way to start growing algae. Just remember that algae are plants, so they need the same things plants do: lights, nutrients, carbon dioxide, oxygen, etc.... You may want to put the jar near a window so that the...

Science for Kids: Hydrogen, element hydrogen, list of elements
element hydrogen, list of elements, melting point: Hi Ned -- Hydrogen isn t all that strange, it s right in there near Neon and Oxygen for melting point, and Neon and Nitrogen for boiling point. What s really strange is instead Helium, I think! Does not solidify even near absolute zero, and the boiling point...

Science for Kids: homo Sapiens Sapiens, cities and civilizations, hunter gatherers
cities and civilizations, hunter gatherers, ancient cities: Hi Hien, Many different kinds. We are all Homo Sapiens Sapiens. 50,000 years ago we were hunter/gatherers migrating across the world following herds of animals. Some of us then settled down when we discovered that we could farm. We started with small...

Science for Kids: Magnetic force, magnetic circuit, force of attraction
magnetic circuit, force of attraction, magnetic force: Hi Aaliyah, The distance is dependent upon two variables. 1) the goss value of the magnet or the strength of the magnet and 2) the size of the iron object. The more powerful the magnetic goss power, the larger the object can be at a greater distance....

Science for Kids: Measuring calcium in milk, science expirement, wavelengths of light
science expirement, wavelengths of light, spectrometers: Hi Crystal Unfortunately, there is no easy way to measure calcium. Calcium can be measured using kits that involve the use of spectrometers (which measure wavelengths of light) or via calcium probes. A probe is in the range of 1000 dollars, and a spectrometer...

Science for Kids: Mirrors, wave particle duality, quantum electrodynamics
wave particle duality, quantum electrodynamics, duality of light: Hi Shaun --not often I get Quantum Electrodynamics (QED) questions! To really get this right, you re going to need to read Richard Feynman s book QED--the strange theory of light and matter, or watch his lectures (a series of 4, you need to watch all of...

Science for Kids: I need help on my biology homework, biology homework, homework answers
biology homework, homework answers, expirements: 1. Hypothesis- People out there are willing to do my homework for me. Experiment- Post my homework on AllExperts.com and see if someone answers me. Result - AllExperts does NOT do homework answers. Sorry. So, as a scientist, what is your...

Science for Kids: protein digestion at different pH levels, high protien food, high protein food
high protien food, high protein food, protein digestion: Hi Emily, Your suggestion about consuming more acid or base foods when eating a high protien food may have some merit. However, this would potentially make his experiment far more complex then would be typical of a middle school science fair experiment....

Science for Kids: Qualitative and Quatitative, gummy bears, qualitative data
gummy bears, qualitative data, quantitative data: Hi B, In general, you can think of quantitative in terms quantity, or amount / number. Quantitative data are things that are measured with numbers. For your example, it might be how many seconds it took for the gummy bears to dissolve (if they did dissolve),...

Science for Kids: request, bicarbonate of soda, acid salts
bicarbonate of soda, acid salts, baking soda: Hi Meisam -- I can only answer the science and history side of this, since I m not an expert baker -- so you may want to ask again in the AllExperts Food/Drink Home Cooking Bread & Pastries section here! Baking soda is the common name for Bicarbonate...

Science for Kids: Science, insulator, insulators
insulator, insulators, bubble wrap: Hi Michael, For Electricity, Rubber is a very good insulator and some kinds of plastic. that is why wires are coated in plastic and other rubber products. For Heat, Ceramics are excellent insulators and keep items either hot or away from heat. For...

Science for Kids: Science Fair Project, flashlight bulbs, car dashboard
flashlight bulbs, car dashboard, honors science: Hi Miranda -- I hope you have plenty of time to work on the project. It will be time consuming, but quite possible. Since I am a professional in solar and wind energy, I have some links to articles I ve written included at the end. First there are some things...

Science for Kids: science, separating techniques, picking apples
separating techniques, picking apples, many different ways: Just like is sounds. There are many different ways to separate stuff. If two kids are fighting at school, a teacher steps in between them and pushes them apart. You can separate things mechanically, like picking apples off a tree. You can separate...

Science for Kids: science, fooods, nutrition panel
fooods, nutrition panel, sugar content: Hi Conner, there are several ways to do this for packaged foods. On the nutrition panel, they will show the number of calories based on fats and sugars. For fresh fruit and veggies, there are charts available on line that, for a given weight of the veggie,...

Science for Kids: science, cold object, heat flows
cold object, heat flows, temperature heat: Heat flows from the hot object to the cold object. This makes the hot object cool down, while the cold object heats up. If you leave them touching each other, after a while they will both be at the same temperature. Heat always flows from the object with...

Science for Kids: science fair, science fair, m ms
science fair, m ms, vinegar: I don t quite understand what the question is. And I can t do the experiment for you! But it would be easy -- 2 jars, water in one, vinegar in the other. As long as you keep the temperature of the 2 jars the same, you ll be able to due the experiment. ...

Science for Kids: science project 8th grade, bacteria count, bacterial colonies
bacteria count, bacterial colonies, petri dishes: Hi Steven, This is a good question. The first thing you have to ask is what your variables are. Your independent variable, the thing you change, will probably be what you use to try to clean the keyboards with / your method of cleaning (eg antibacterial...

Science for Kids: soda, hi mike, carbon dioxide
hi mike, carbon dioxide, bubbles: Hi Mike, Soda contains Carbon Dioxide which gives soda its fizz. Once the container is opened, the Carbon Dioxide can escape, the bubbles you see are the bubbles of Carbon Dioxide escaping. Once the Carbon Dioxide comes out of solution, the soda is called...

Science for Kids: Tesla Coil, tesla coils, plasma gun
tesla coils, plasma gun, science project: I assume you ve already read the Wikipedia article, which has a lot of helpful information. http://en.wikipedia.org/wiki/Tesla_coil You could build one, but it will take a lot of time and effort, and expensive parts. It can also be dangerous since you...

Science for Kids: You think other minds exist?, real people, google
real people, google, robot: Google the phrase Turing test which is a test to use to tell if you are talking to a person or a computer. There are computers nowadays that are smart enough to pass the Turing test, if you limit the scope of the conversation. Nobody knows if there...

Science for Kids: Can you use soft drinks as an electrolyte to light a flash light bulb, amp meter, energy creation
amp meter, energy creation, gatoraid: Hi Amanda, Soft drinks may allow the current to flow due to all of the stuff, including sugar, that is in the soft drink. In your experiment, also use Gatoraid, which is a real electrolite. So the circuit goes from a battery via a wire to the penny suspended...

Science for Kids: alternative power sources, alternative power sources, rotor diameter
alternative power sources, rotor diameter, wind turbines: Hi Robert -- Yes you can. But not likely a regular lightbulb, you are better off trying to light an LED or two, they take MUCH less power. Unless the wind turbine has a large rotor diameter (swept area), you can t get much power from low winds. But in...

Science for Kids: building a ramp for science project, soup cans, size cars
soup cans, size cars, hot wheels: I suggest you use Hot Wheels-size cars and Hot Wheels-type plastic track. Have the plastic ramp start high, go down low, then curve up again to launch the car. Always start with the car at the same height, and then vary the shape of the curve up. Use wooden...

Science for Kids: Calculator Solar panel, keychain light, parallel connection
keychain light, parallel connection, voltage and amperage: Hi Julian -- Yes, you could do that. Instead of wasting calculators, though, you might look into calculator solar panels from various online surplus electronic stores. In any case -- you ll need combine multiple panels, as you already figured out. You...

Science for Kids: Carnival Games Science Project, science fair projects, carnival games
science fair projects, carnival games, science project: Hi Luke, You are proposing a good question. Carnival games use science to create a situation in which it is very difficult for a participant to win. Be it weighing something down in a certain area, angling things in a certain way, etc... science is behind...

Science for Kids: Chemistry, non disclosure agreement, corn starch
non disclosure agreement, corn starch, zea mays: Hi Maria, Detergents come in many forms and are designed to remove soil from fabrics or other surfaces such as dishes. Starches, waxes and other ingrediants may be added to improve the quality of the surfactant, the retention of dyes, fabric longevity...

Science for Kids: Circuits, coke cans, aluminum cans
coke cans, aluminum cans, shiny aluminum: Hi Saray -- Aluminum cans are coated with plastic both inside and outside so your soda doesn t react with the aluminum, and the plastic is an insulator. Take fine sandpaper and remove the plastic at the spots where you connect to the can, until you get...

Science for Kids: carbonation, good science fair project, science fair project
good science fair project, science fair project, agitation: Hi Sammy -- Depends on what hypothesis you are trying to prove! But squeezing the bottle isn t going to have any effect if the cap is on--the cap lets the bottle hold pressure, under which the carbonation can stay in solution in the soda. Maybe a different...

Science for Kids: carbonation in soft drinks, carbonation, soft drinks
carbonation, soft drinks, measuring cup: Hi April, Taking a large basin filled with water, place two bricks into the basin so that you can place a measuring cup filled with water upside down on the bricks. Then take a can of your favorite soft drink, shake it up (a lot) then open the can under...

Science for Kids: controls in experiments, control variables, experimental control
control variables, experimental control, light group: Hi Donna, It is not that you are slow or foggy, it is a confusing issue that many people don t grasp right away. An experimental control is like the mythical group 6 above. Imagine 6 rows of 5 potted plants. (total of 30 plants) You are testing how...

Science for Kids: digestion, human serum albumin, wikipedia
human serum albumin, wikipedia, jessie: Hi Jessie, Here are few websites that shows you the structure and explanation. Sorry, it is hard to draw those structure in an email, but please feel free to contact me if they are not clear and/or you need more information. http://nsdl.org/resource/2200/20080423151738492T...

Science for Kids: egg drop, egg drop experiment, egg yolk
egg drop experiment, egg yolk, open cell foam: Hi Kelsey -- I get this question quite a lot. The information below is, as far as I know, the best way to succeed in the egg drop! The egg drop experiment is really fun. And the physics of it are really interesting....you are pretty much designing the same...

Science for Kids: egg drop, egg drop, aluminum foil
egg drop, aluminum foil, pipe cleaners: Hi Erica, I have been giving this a lot of thought. This is one of the most difficult groups of materials I have encountered for an egg drop. I would propose that you create a parachute of sorts. Using the paper cup as the gondola for the egg....

Science for Kids: electricity with fuits, potato clock, kinds of fruits
potato clock, kinds of fruits, fruits and vegetables: Here are some links to a potato clock or lemon clock. After you watch the YouTube video, read about why it works. http://www.wikihow.com/Make-a-Potato-Clock http://www.youtube.com/watch?v=wP2UiJSTHs8 http://en.wikipedia.org/wiki/Lemon_battery...

Science for Kids: SUBMARINE RESEARCH DONE IN THE 1960S, submarines
Science for Kids: SUBMARINE RESEARCH DONE IN THE 1960S, submarines

Science for Kids: finding what these science equations are used for., potassium chloride salt, sodium carbonate
potassium chloride salt, sodium carbonate, potassium hydroxide: These are not science equations. They are the scientific names for chemicals. Barium sulfate, Calcium chloride, Potassium Chloride/salt, Silver bromide, sodium carbonate, and potassium hydroxide. If you google these chemicals, you can find out what...

Science for Kids: freezing and melting projects, science background, science projects
science background, science projects, day care: Hi Amanda -- Science projects for really young ages are tough, since the students don t yet have a science background. They DO have their own observations of the world, though. And, the projects have to be fun! I d go with a contest -- see who can get...

Science for Kids: Homo Sapiens, genetic modification of food, asteroid hitting the earth
genetic modification of food, asteroid hitting the earth, 65 million years: Hi May, We, homo sapiens that is, are highly adaptable and as a result, can live in most climates on the Earth. However, we are just as suseptable to an Extiction Level Occurance like an asteroid hitting the Earth as the Dinos were 65 million years ago....

Science for Kids: invention idea, invention idea, popsicle stick
invention idea, popsicle stick, due tomorrow: Hi Justin Not knowing what you have at home this is a tall order. How about a popsicle stick compass WIth this, you take a glass bowl and fill it with water. Then take a magnet ( a stick magnet works the best) cut it in half and then glue the North...

Science for Kids: Life Science for teens, chemistry experiments, human science
chemistry experiments, human science, lab experiment: Hi there, Your best and easiest way is to do some chemistry experiments. Those are very easy and most probably you can do it in the lab and have charts, etc for them. I do not have any particular one at the top of my head because I do cancer research and...

Science for Kids: Model Arm, plastic piping, plastic tubing
plastic piping, plastic tubing, fun project: Rubber bands can easily be looped over the ends of screws. I suggest screwing screws into the plastic tubing, then looping the rubber bands over the ends. Sounds like a fun project! If you can t find plastic tubing, popsicle sticks taped or glued together...

Science for Kids: magnetic levitation, neodymium iron boron, magnetic levitation
neodymium iron boron, magnetic levitation, middle school science: Hi Eric -- No, it s not possible. Earnshaw s Theorem states that to levitate a magnet, you must have an extra axis of stabilization, or else the magnet will simply flip itself over so it is attracted to the other magnet involved. The extra axis can be...

Science for Kids: magnetism through salt water, diamagnetic effect, magnetic field strength
diamagnetic effect, magnetic field strength, rare earth magnet: Hi Elizabeth -- The diamagnetic force is just an opposite, but weak, reaction to the magnetic field of the magnet by the water. It attenuates the magnet s field slightly--the field from the magnet tends to go around the water molecules, so if you measured...

Science for Kids: matter, atoms, and molecules, element sulfur, atoms and molecules
element sulfur, atoms and molecules, atoms molecules: Hi there, sorry for that. Here is another website that you can open without the PDF requirments: http://www.docbrown.info/page01/ElCpdMix/EleCmdMix.htm http://staffweb.psdschools.org/jbarnaby/8_word/Properties%20unit%20notes.doc Physical property: ...

Science for Kids: metal vs wood bat, laser speed gun, phd fellow
laser speed gun, phd fellow, aluminum bat: I think it would be Moment of Interia--mass times the square of the distance the bat acted over. As for the player being able to swing the lighter aluminum bat faster--the faster the bat speed, the faster the ball speed (kinetic energy-- 1/2 x mass x velocity^2)...

Science for Kids: mini solar panel, 12 volt battery, energy payback
12 volt battery, energy payback, solar cells: Hi Devvin -- The most recent math on your question is that (at least for larger solar panels such as those used on remote homes) it takes just under 3 years for the PV panel to produce the amount of energy that it took to produce the panel. With a predicted...

Science for Kids: mold, types of mold, scientific journals
types of mold, scientific journals, google: Hi Mark. Yes indeed, new types of mold are still being discovered. Same for insects. The reason -- both are very difficult to study and classify, as they are so small, and rare species are difficult to locate. You can stay up to date on such things by...

Science for Kids: Echinoderms, ectothermic, question subject
ectothermic, question subject, physical responses: You can look up this stuff on the simplified version of Wikipedia, or children s online science references. Echnidnoderms have a tough skin which defends them against getting eaten. Starfish can shed an arm (and regrow it later) if something tries to eat...

Science for Kids: Physics of Sound, sound amplitude, pressure wave
sound amplitude, pressure wave, solid materials: Hi Michelle -- Sound is a pressure wave that moves through a medium. So, the more molecules there are for the pressure wave to work against, the louder the sounds will seem. Air has fewer molecules, more widely spaced--so sound will seem louder through the...

Science for Kids: Plant growth/photosynthesis, science fair experiments, direction of the sun
science fair experiments, direction of the sun, homework assignments: Lola, Did you look at the website I sent to you? Did you try going to www.google.com and put in photosynthesis? This is work that you need to do so that you can demonstrate that you did the work and understand the material. Once you have done that...

Science for Kids: Popcorn project., corn pop, airtight containers
corn pop, airtight containers, popcorn board: Hi Jenna - Interesting question....not something I knew offhand, other than store in a cool, dry place like for any sort of seed...but that s mostly to prevent mold and rot. So I searched popcorn storage and got some good links and info. It s the...

Science for Kids: plants, chemical sources, organic sources
chemical sources, organic sources, manmade: Hi Jennifer -- Plants need fertilizer for nutrients just like humans need food for nutrients. Water alone is not enough to sustain life. For plants, the primary groups of fertilizer are Nitrogen, Phosphorus and Potassium (N-P-K is how they are listed...

Science for Kids: I have a Question:, water cycle, science projects
water cycle, science projects, science project: Hi Mariejane, I m not sure that you can. Parts of it yes, such as the evaporation portion or the part where the water flows from the land to the sea. Or perhaps water use in plants with absorption and transpiration. For most science projects you...

Science for Kids: Question about Water Power, flood control, dam safety
flood control, dam safety, hydro power: Hi Nick -- I live 2000 miles away and have never been to New Jersey. But Google is your friend -- when you search: new jersey dam the first entry that comes up is the New Jersey State Dept of Dam Safety and Flood Control, which would be a GREAT place to...

Science for Kids: rain over ocean and land, ocean areas, land areas
ocean areas, land areas, typhoons: Hi Amanda, It rains over both. How much more over one then the other, I m not sure anyone really knows. However, I would think that since the ocean areas are much larger then land areas and that you have hurricanes, cyclones and typhoons as well as monsoons...

Science for Kids: renewal of earth's supply of fresh water, nhptv, water cycle
nhptv, water cycle, fresh water: Hi Amanda, Thanks for contacting me. This subject is not my area, but I found a website that I thought was very interesting in answring your question. It also has a link to another site that you can take a look. http://www.nhptv.org/natureworks/nwep7.htm...

Science for Kids: runny liquids, viscosity liquids, scientific word
viscosity liquids, scientific word, cooking oil: The scientific word for runniness is viscosity . Liquids with higher viscosity are gooier and less runny. Liquids with low viscosity are less gooey and runnier. So you are looking for the relationship between viscosity and temperature for water, and...

Science for Kids: Salt Water, freezing point depression, boiling point elevation
freezing point depression, boiling point elevation, colligative property: Hi Brock -- Salt water DOES freeze -- just look at the iceberg that the Titanic hit! However, the salt lowers the temperature needed to freeze the water, an effect called freezing point depression. It also raises the temperature needed to boil the...

Science for Kids: Science experiment for a 2nd grader in regards to determing density of liquids, density of liquids, science experiment
density of liquids, science experiment, emulsifier: Most companies that make dish washing liquids or detergents are rather quite about the stuff they put into these products. They don t like sharing this kind of information. I would go back to my original recommendation about emulsifiers. Here are some...

Science for Kids: Solid copper wire - electromagnet, lantern batteries, copper wires
lantern batteries, copper wires, volt lantern: Hi Dalton -- Yes, the core should be a ferrous metal (one that s attracted to a magnet). Keep in mind -- the more wraps of wire you have around the core, the stronger the magnetic field you generate will be. I d use at least 20 wraps around a 16 penny nail,...