Chemistry Sitemap - Page 10 2016-09-26

Thulium Facts
Thulium is a silver-colored lanthanide element. Here are interesting thulium element facts, including a summary of its chemical and physical properties.

Homeschool Chemistry Supplies
Homeschool chemistry experiments and lab projects may seem daunting, but there are many sources of chemistry lab supplies that are inexpensive, safe and educational.

Oxoacid Example Chemistry Problem
This chemistry example problem explains how to identify the strongest acid from a list of oxoacids.

Rare Earth Abbreviations - REE and other Rare Earth Element Abbreviations
Rare earth abbreviations include REE, RE, REM, REO, LREE and HREE. Find out what the rare earth abbreviations mean.

Using Material Safety Data Sheets (MSDS)
Learn how to find and read Material Safety Data Sheets or MSDS to know chemical facts and risks.

Using Material Safety Data Sheets
Understanding and Using Material Safety Data Sheets - MSDS. Page 2.

Homogeneous Definition
This is the definition of homogeneous along with examples.

Atomic Number 15
Find out which element is number 15 on the periodic table. Get facts and trivia about element number 15.

Edible Experiments
Find an edible experiment for a science project or just for fun! This is a collection of experiments that are so safe, you could actually eat them.

Como las Ecuaciones de Balance Químico
Aprender a equilibrar las ecuaciones químicas. These are step by step instructions, in Spanish, for balancing chemical equations.

Fizzy Sherbet Powder Candy Recipe
Here's a fizzy sherbet powder candy recipe you can use to enjoy a sweet fizzy treat or to make homemade Dip Dab.

Atomic Number 4
Learn about the element that is atomic number 4 on the periodic table. Get interesting beryllium element facts.

How Do Pop Rocks Candy Work?
Find out how pop rocks candy works and whether or not it's true your stomach will explode if you wash down pop rocks with soda.

Exploding Mentos Drink
If you freeze a Mentos candy in an ice cube and put it in a carbonated drink, it will foam up when the ice melts. Does it work? Let's find out.

Is It Safe To Drink Bleach? Will It Kill You?
Learn whether or not it is safe to drink bleach, what happens if you do, and whether it can kill you. Also answering the rumor if drinking bleach can help you pass a drug test

Facts To Know for the AP Chemistry Exam
Are you taking the AP chemistry exam or another cumulative test? Here are need to know chemistry facts to review before taking the exam.

How To Write an Abstract for a Scientific Paper
Learn how to write an abstract for a scientific paper and see examples of phrases to avoid. Two forms of abstracts are described.

Does Pineapple Make Oral Sex Taste Better?
You may have heard pineapple can change the taste of vaginal and seminal fluids during oral sex. Here's a look at whether it's true and how it works.

What Is the Most Ideal Gas?
The Ideal Gas Law is often applied to real gases in calculations. Have you ever wondered which real gas behaves most like an ideal gas?

pH of Household Products Quiz
pH of Household Products Quiz - See whether you know the pH of chemicals around your home.

Atom Basics Quiz - Test Your Chemistry Knowledge
Atom Basics Quiz - Test Your Chemistry Knowledge

Can You Eat Mango Skin?
Can you eat the skin of a mango? The answer depends on a few different factors. Here's a look at the good chemicals in mango, as well as one that can cause a nasty reaction.

How to Write a Lab Report
Lab reports are an essential part of all laboratory courses and a significant part of your grade. Here's a format for a lab report you can use if you aren't sure what to write or need an explanation of what to include in the different parts of the report.

Does Bottled Water Have a Shelf Life?
Most bottled water has an expiration date stamped on the bottle, but does the bottled water actually go bad? If so, how long is bottled water good? Here's the answer to this common question.

Can You Drink Rain Water?
Here's a look at whether or not it's safe to drink rain water, the risks, and ways to improve rain water quality to make it better to drink.

Crystal Starfish Ornament or Decoration
Grow crystals on a small starfish to make a sparkling crystal starfish ornament or decoration.

Christmas Tree Elephant Toothpaste Chemistry Demonstration
Use the elephant toothpaste demonstration to make a Christmas tree holiday chemistry demonstration? It's an easy chem demo for before holiday break!

Does the Taurine in Red Bull Really Come from Bull Semen?
Find out whether the taurine in Red Bull came from bull semen.

Scientist vs Engineer - What's the Difference?
Scientist versus engineer: are they the same? Different? Here's a look at the definitions of scientist and engineer and the difference between a scientist and engineer.

Maillard Reaction and Why Foods Brown
Learn about the Maillard reaction, which is the set of chemical reactions that make foods, like meat and bread crust, turn brown.

Carmelization Chemistry
Heated sugar turns brown and changes flavor because of carmelization. Here's a look at the chemistry behind the carmelization process.

What is the Difference Between Oxidation and Reduction?
Oxidation and reduction reactions involve an exchange of electrons between reactants. Here is how to tell which reactant was oxidized and which was reduced.

Preschool Science Experiments and Activities
This is a collection of fun, easy and educational science experiments and activities for preschool students.

Preschool Science Experiments and Activities
This is a collection of fun, easy and educational science experiments and activities for preschool students.

Learn How To Determine Significant Figures
Learn what significant figures are and how they are used with respect to scientific measurements and calculations.

Ligand Definition - Chemistry Glossary Terms
This is the definition of a ligand, as well as several examples of ligands.

How Laughing Gas or Nitrous Oxide Works
Laughing gas or nitrous oxide is used at the dentist's office and as a recreational drug. Take a look at the science of how laughing gas works to reduce pain and anxiety.

What Are Proteins?
This is an introduction to proteins, a large class of biological molecules. Learn about their structure and function and get protein examples.

Lewis Structures or Electron Dot Structures
Learn about Lewis structures, also called electron dot structures and get step-by-step help drawing them.

Why Milk Curdles
Chemical reactions cause milk to curdle. Here's a look at the factors leading to curdling and how to prevent milk from curdling or cause it occur.

How To Grow Color Change Crystals
Here is a simple crystal recipe for crystals that change colors from yellow to green to blue depending on light and temperature.

Elements Named for People - Element Eponyms
There are 14 elements named for people (element eponyms). Can you name them all? Here's the list.

How To Make Gelatin Plastic
These are directions for making gelatin plastic for use in jewelry, mobiles, or other decorations.

How Long Do Mood Rings Last?
Mood rings change color in response to temperature. Here's a look at how long you can expect a mood ring to last and the factors that affect its life.

Kinetic Sand Recipe
Here is a recipe for homemade kinetic sand, a fun type of sand that you can mold into shapes.

Why Is the Metal Mercury a Liquid?
Mercury is the only metal that is liquid at room temperature. Here's a look at what makes mercury different from other metals.

Why Milk Is White
Have you ever wondered why milk is white? Here's a look at how milk's chemical composition affects its color.

What Is Buttermilk? Does It Contain Butter?
What is buttermilk? You might think buttermilk contains butter, but it's really the result of a chemical reaction in any milk, including fat free milk.

What Are Examples of a Hypothesis?
Here are examples of a scientific hypothesis and how to improve a hypothesis to use it for an experiment.

The Science Behind How Popcorn Pops
Popcorn pops because each popcorn kernel is special. Here's a look at what makes popcorn different from other seeds and how popcorn pops.

Strong Electrolyte Definition
This is the definition of a strong electrolyte along with examples.

Weak Electrolyte Definition
This is the definition of a weak electrolyte along with several examples.

Polymer Definition
Get the definition of a polymer and see examples of common polymers.

Home Chemistry Supplies List
Put together a home chemistry kit with common household chemicals and a few simple materials to use as chemistry lab supplies.

What Is Freezing? Chemistry Glossary Definition
Get the scientific definition of freezing along with examples.

Can Hot Water Freeze Faster Than Cold Water?
Can hot water freeze faster than cold water? You may have heard this question and wondered how, if it's true, it could even be possible. Here's the answer to the question.

Make Invisible Ink - Corn Starch
Use corn starch and an iodine solution to write a secret message and then reveal it.

What Is the Most Basic Building Block of Matter?
Learn about the most basic building block of matter and the 3 particles that make up this fundamental unit.

What Is Antimatter, and Where Might You Find It?
Antimatter isn't just in science fiction or particles accelerators. It's a part of the everyday world. Here is what antimatter is and where to find it.

Transition Metal Colors in Aqueous Solution
The transition metals form colored solutions in water. Here's the explanation for why this happens and a list of key transition metal complex colors.

Make Jumping Rubber or Polybutadiene
Learn how to make jumping rubber polybutadiene. This is a dramatic chemistry demonstration in which chemicals react, pop open a container, and shoot out a polymer snake,

Coral Undersea Crystal Garden
Try this colorful and interesting crystal project that resembles an undersea scene. The crystals look like delicate coral.

Safe Self-Carving Pumpkin Project
The self-carving Halloween pumpkin project uses chemistry to carve a jack-o-lantern face. Here's how to perform a safe version of the project.

Types of Chemical Bonds
Learn about the different types of chemical bonds and the forces that affect the way electrons are shared.

Make a Candy Spark in the Dark
Chemistry.

Use Science To See the Iron in Cereal
Chemistry.

Use Science To Freeze Foods on Command
Chemistry.

Make Fizzy Food Using Science
Chemistry.

Use Science To Make Ice Cream
Chemistry.

Make Slime You Can Eat
Chemistry.

Molecular Gastronomy Projects
Chemistry.

Make and Eat Food That Glows Under Black Light
Chemistry.

Sugar Crystals Are Science You Can Eat
Chemistry.

Kitchen Science Projects You Can Eat
Looking for a fun way to have your science and eat it too? Try these kitchen science projects you can eat.

Cyanide Poisoning From Apples, Peaches, Cherries
Learn about the risk of cyanide poisoning from apples, peaches, cherries, plums, and other members of the Prunus genus of fruit trees.

Eating Apple Seeds or Cherry Pits
Apple seeds and cherry pits contain a cyanide compound. What happens when you eat apple seeds? Here are answers from people who have done it.

What Are Some Examples of Atoms?
Atoms are fundamental units of matter that cannot be broken down using any chemical means. Here are some examples of atoms.

Uses for Bleach and Vinegar
Mixing bleach and vinegar results in an effective, but dangerous cleaner. Here, readers share their uses for mixing bleach and vinegar and experiences.

What Is the Sweetest Compound?
Find out just how sweet it is with list of the sweetest chemical compounds.

How To Make an Edible Water Bottle
Don't have a glass? You don't need one if you make an edible water bottle. This is an easy spherification recipe you can use for other liquids too.

What Is Valence or Valency in Chemistry?
This is an explanation of valence or valency in chemistry.

Scoville Scale Organoleptic Test
The Scoville scale is a measure of the pungency or spicy heat of chili peppers and other chemicals. Here is how the scale is determined and what it means.

How To Calculate Experimental Error
Here's a quick review of different ways of calculating experimental error along with worked example problems.

Absolute Error and Relative Error Calculation
This is an example of how to calculate absolute and relative error.

How to Get Iron Out of Breakfast Cereal
You know cereal contains iron, but have you ever wondered how much there is? See the iron from fortified breakfast cereal using these simple steps.

5 Simple Buttermilk Recipes To Try
If you don't have buttermilk, it's easy to apply a little kitchen chemistry to make it from regular milk. Here are 5 simple buttermilk recipes to try.

Lemon Juice To Make Buttermilk
It's easy to use lemon juice to make homemade buttermilk. Here's what you do.

White Vinegar To Make Buttermilk
You can make buttermilk substitute using white vinegar and milk. Here's the recipe.

Use Yogurt To Make Buttermilk
Use yogurt and milk to make buttermilk. Here's a simple recipe.

Sour Cream To Make Buttermilk
Use sour cream with milk to make buttermilk. Here's a simple recipe.

Cream of Tartar To Make Buttermilk
You can use cream of tartar and milk to make buttermilk. Here's an easy recipe to try.

How To Make Non-Dairy Buttermilk
You can make homemade non-dairy buttermilk. Here's are a few options to try.

Difference Between Baking Powder and Baking Soda
Baking powder and baking soda both make baked goods rise. Learn the difference between baking powder and baking soda and how to make ingredient substitutions.

Make Lichtenberg Figures the Easy Way
Lichtenberg figures are branching structures formed from an electrical discharge on or inside of an insulator. Here's a simple way to make a Lichtenberg figure yourself.

Is Reheated Pasta and Pizza Less Fattening?
Pasta, pizza, bread, and potatoes are starchy foods that can spike your blood sugar. However, eating them cold or reheated may make them less fattening. Here's how it works.

How to Calculate Molarity of a Solution
Molarity is a unit of concentration measuring the number of moles of a solute per liter of solution. Here is how to calculate molarity of a solution.

What Is the Boiling Point of CCl4 or Carbon Tetrachloride?
This is a look at the boiling point of carbon tetrachloride, also known a CCl4 or carbon tet.

Single Bond Energies Table - Thermochemistry Table
Bond Energies are used to determine whether a reaction will be exothermic or endothermic. This table has bond energies for single bonds between ten common gaseous elements.

10 Basic Chemistry Facts
This is a collection of 10 fun and interesting basic chemistry facts.

What Is Pitchblende?
Learn about the chemical composition of pitchblende, the primary ore of uranium.

Corrosion Definition
This is the definition of corrosion along with an example.

What Is the Greenhouse Effect?
Learn what the greenhouse effect is and how it is related to climate and climate change.

Strong Acid Definition
This is the definition of a strong acid. Examples of strong acids are listed.

How To Make Aqua Regia Acid Solution
These are step by step instructions to make aqua regia solution, a potent mixture of nitric and hydrochloric acid.

How To Make Kastle-Meyer Solution
The Kastle-Meyer test is a simple, reliable and inexpensive test to detect blood. Here is how to prepare the Kastle-Meyer solution used for the forensic test.

What Acid Is in Vinegar? - Vinegar Chemical Composition
This is a look at the chemical composition of vinegar, including which acid it contains.

pH Rainbow Tube
Make a rainbow in a tube or wand using common household chemicals. This is an easy pH project that you can use to test the acidity of kitchen ingredients, plus it makes a great decoration.

Plastic Sulfur - Simple Sulfur Polymer Demo
Did you know you can make a polymer from an element? Turn ordinary sulfur into rubbery plastic sulfur and then back into its brittle crystalline form.

How to Make Floam
Make your own version of Floam, a type of slime that contains polystyrene beads so that you can shape it and create with it.

What Is the Chemical Composition of Farts?
Have you ever wondered what farts are made of and whether they are the same for everyone? Here's a look at the chemical composition of farts.

How to Grow Copper Acetate Monohydrate Crystals
Grow your own blue-green monoclinic crystals of copper acetate monohydrate. It's easy! Here's what you need to do.

Hemagglutinin and Food Poisoning from Beans
Eating soaked raw or undercooked beans can result in food poisoning. Learn how hemagglutinin can hurt you and how to prevent getting sick.

Where To Buy Copper Sulfate Pentahydrate
Copper sulfate pentahydrate (copper sulfate or copper sulphate) is used to grow blue crystals and in other projects. Here's where you can get it.

How to Make Rochelle Salt
Rochelle salt or potassium sodium tartrate is an interesting chemical that is used to grow large single crystals. Here is how to make Rochelle salt from two household chemicals.

How to Dry a Graduated Cylinder
Learn how to dry or pre-rinse a graduated cylinder for use in chemistry lab.

Rochelle Salt Crystals - Potassium Sodium Tartrate
Rochelle salt is popular for growing crystals because it results in easily grown single crystals. Here's how to grow these clear crystals yourself.

What Is the Most Common Mineral?
Learn what the most common mineral is on Earth and why there are 4 possible correct answers, depending how the question is asked and who is answering.

Chemical or Scientific Names of Common Substances
Chemical or scientific names are used to give an accurate description of a substance's composition. This is a comprehensive list of chemical names of common household chemicals and other materials.

Tips to Help You Pass Chemistry Class
Are you taking a chemistry class? Chemistry may be challenging, but there are many things you can do to help yourself succeed. Here are some tips to help you pass chemistry.

Fizzy Sparkling Lemonade Made With Science
Beat the heat with refreshing sparkling lemonade you make using science! This is a fun, fizzy project for kids (or kids at heart).

What Causes Rigor Mortis?
Learn what rigor mortis is and why it happens.

The 'Do Not Microwave' List
When you microwave something, you input energy into its molecules. This isn't always a good thing. Here is a list of items you should never microwave.

Theobromine Chemistry
The methylxanthine in chocolate is theobromine, a molecule similar to caffeine. See the structure of theobromine and read about its chemistry, effects, and uses.

Sewing Machines Believed to Contain Red Mercury
Do you have an old Singer sewing machine? If so, it may be worth $50,000! The reason is that old sewing machines are believed to contain red mercury.

Does Glass Block UV Light?
You may have heard you can't get a sunburn through glass, but that doesn't mean glass blocks UV light. Here's what you need to know.

Ultraviolet Radiation - Definition of Science Terms
Ultraviolet Radiation or ultraviolet light definition, as used in chemistry, chemical engineering, and physics.

How to Make LED Glowies and LED Throwies
Here are simple instructions for making your own LED glowies and LED throwies that glow in the dark. Both LED projects are easy and fun.

How Febreze Works - Facts and Chemistry
Does Febreze remove odors or merely mask them? Here's a look at how Febreze works, including information about its active ingredient, cyclodextrin, and how the product interacts with odors.

Find the Mean, Median, Mode and Range of a Series
This worked example problem shows how to calculate the mean, median, mode and range of a series of numbers.

Why Can't You Add Pineapple to Jell-O?
Have you heard that adding pineapple to Jell-O or other gelatin will prevent it from gelling? It's true. The reason pineapple prevents Jell-O from setting is because of its chemistry.

What Does a Meth Lab Smell Like?
No one wants to live next door to a meth lab, but how do you know if there is one in your neighborhood? One way you might suspect illegal drugs are being made is by their smell.

How To Grow Aragonite Crystals
It's easy to grow aragonite crystals! These sparkly crystals only require vinegar and a rock. Growing crystals is a fun way to learn about geology and chemistry.

How To Make Slime
This is a classic recipe for homemade slime. It's super-easy, plus I included tips for success.

How To Calculate pH - Quick Review
Review how to calculate pH and what pH means with respect to hydrogen ion concentration, acids, and bases.

Atomic Mass (Weight) - Definition of Chemistry Terms
This is the definition of atomic mass or atomic weight, along with examples and links explaining how to calculate atomic mass.

Why Soda Is Bad for Your Teeth
You've heard soda is bad for your teeth, but is it true? Yes! Here's the explanation why soda hurts your teeth and how to minimize the risk.

Why Do People Tap on Cans? Expert Q&A
Here is the scientific explanation of why tapping on a soda can helps keep it from exploding.

Fun and Interesting Chemistry Facts and Trivia
Chemistry is a fascinating science, full of unusual trivia! Here are some fun and interesting chemistry facts for you.

Does Polymer Clay Go Bad?
Learn whether polymer clay goes bad over time and how to renew old polymer clay that is dried out but still good.

What Is Denatured Alcohol?
This is an explanation of what denatured alcohol is, how it is denatured, and why it's dangerous to drink it.

Density Definition
This is the definition of density, with an example and sample units of measurement.

Number of Atoms in the Universe
Have you ever wondered how many atoms there are in the universe? Here is the number and the explanation of how scientists estimate the number of atoms in the universe.

Make Hot Ice from Vinegar and Baking Soda
Sodium acetate, also known as 'hot ice' is an amazing chemical you can easily prepare yourself using baking soda and vinegar. The crystallization is an exothermic process, so the resulting ice is hot.

What Is the pH of Water?
The pH of water is a value you should know, plus it's good to understand why the actual pH of water might differ from the theoretical value.

pH of Common Chemicals
pH is a measure of the acidity of a substance. Here's a table of the pH of several common chemicals.

Calculating Concentration - Concentration Units & Dilutions
Calculating concentration is a basic skill needed by chemistry students. This is a list of steps and examples to calculate the concentration of chemical solutions in percent composition by mass, volume percent, molarity, molality, and normality.

How Many Atoms Are There in a Human Cell?
Have you ever wondered how many atoms are in a human cell? It's a huge number! Here's a look at the answer.

RNA Definition and Examples
This is the definition of RNA along with examples of types of RNA molecules.

How To Make a DNA Model out of Candy
Make a DNA model out of candy. You can learn how DNA is constructed and eat your science at the end.

Have You Ever Touched Dry Ice?
Have you ever touched dry ice? Read what how dry ice feels, from people who have firsthand experience touching it.

Can You Touch Dry Ice?
Dry ice is solid carbon dioxide. It's very, very cold! Here's whether or not you can touch it and what happens if you do.

How To Extract DNA
DNA is life's blueprint. Learn how to extract DNA easily from any living organism.

Fluorescence Definition and Examples
This is the definition of fluorescence, with examples of fluorescent materials.

How Glow in the Dark Stuff Works
Learn the science of how glow in the dark stuff works, including glowing paints and pigments. Find out why the most common glowing color is green.

Can I Grow Quartz Crystals at Home?
Quartz crystals are beautiful pointed crystals that form the basis for amethyst, citrine, and other gems. If you want to grow these crystals at home, here's what you need to know.

How to Calculate Normality
The normality of a solution is the gram equivalent weight of a solute per liter of solution. Here's an example of how to calculate the normality of a solution.

Home and Garden pH Indicators (Household Items)
There are many common household products and garden plants that can be used as pH indicators. Learn what they are and how to use them.

Slime Recipe - How to Make Borax and White Glue Slime
Get step-by-step instructions for making classic slime.

How to Make Slime - Prepare the Slime Solutions
Get step-by-step instructions for making classic slime out of borax, white glue, water and optional food coloring.

How to Make Slime - Mix the Slime Solutions
Get step-by-step instructions for making classic slime out of borax, white glue, water and optional food coloring. Page 3.

Finish the Slime
Get step-by-step instructions for making classic slime.

Things to Do with Slime
What can you do with slime? Here are some fun ideas.

Keep Your Slime
Wondering how to save slime when you are done playing with it? Here's what you do.

How To Make Aspirin from Willow
It's easy to extract the aspirin-related painkiller from willow. Here are simple steps to follow.

Vacuum Definition and Examples
This is the definition of vacuum, with examples of where you might find a vacuum.

Complex Ions and Precipitation Reactions
Learn about the complex ions and precipitation reaction which can be used to identify ions in qualitative analysis.

Qualitative Analysis Definition
This is the definition of qualitative analysis, as used in chemistry. Examples of qualitative analysis are given.

Borax-Free Slime Recipes
The traditional slime recipe calls for glue and borax, but you can make slime without borax, too! Here is an easy borax-free slime recipe.

How to Calculate Standard Deviation
Standard deviation is an important calculation for math and sciences, particularly for lab reports. Here are step by step instructions for calculating standard deviation by hand.

Haber-Bosch Process - Chemistry Information
Learn the history of the Haber or Haber-Bosch process, how it works, and the importance the process has on chemistry.

Best Chemistry Study Tips
Teachers and students share the best chemistry study tips that worked for them to learn chemistry.

Grade School Science Fair Project Ideas
Readers share their best grade school science fair project ideas and tell whether the project was successful at the science fair.

See How Much Sugar Is in a Soda - Experiment
How much sugar do you think is in a soft drink? Here's a simple science experiment to determine the amount of sugar and learn about density.

Grade School Science Experiments Ideas
Get ideas for science experiments targeted at the grade school or elementary school educational level. Find out how to perform a science experiment and get a hypothesis to test.

High School Science Fair Project Ideas
Get high school science fair project ideas from readers just like you and learn how well the idea did at the science fair.

Is Milk Gluten Free?
Learn whether milk is gluten free and why dairy products might contain gluten.

Lanthanides - Properties of Element Groups
Learn about the characteristics of elements 57-71 known as the lanthanide elements. Lanthanides are one of the rare earth groups.

You May Be a Chemist If
You may be a chemist if any of the following statements apply to you. Readers share ways a person can tell you're a chemist.

Chemist Profile and Career Information
Take a look at what a chemist is, what a chemist does, and what type of salary and career opportunities you can expect as a chemist.

Middle School Science Fair Project Ideas
Do you need middle school science fair project ideas? Here is a collection of ideas submitted by other readers and what grade they got for it.

Wax Volcano in a Cup - Realistic Model Volcano
This wax and sand volcano is a realistic model volcano that is easy to make and erupts much like a real volcano.

Science Experiments for Middle School Students
Get ideas for science experiments targeted at the middle school educational level. Find out how to perform an experiment and get a hypothesis to test.

Have You Touched Liquid Mercury?
Learn what happens when you touch mercury. Readers share their experience touching this toxic liquid metal.

Bromcresol Purple - Recipe for Bromcresol Purple pH Indicator Solution
This is the recipe for bromcresol purple, which is a common pH indicator.

Definition of Crystallize
This is the definition of the term crystallize along with examples.

Worst Super Glue Accidents
Have you ever had a Super Glue accident? Read about the worst Super Glue accidents and mistakes made by readers.

Can You Beat a Breathalyzer Test?
A breathalyzer is a device used to determine blood alcohol concentration (BAC) by measuring the amount of alcohol in a sample of your breath. Here's a look at whether it's possible to beat a breathalyzer test with science.

What Causes Hydrogen Bonding?
Learn how hydrogen bonding works, get examples of hydrogen bonds, and understand reasons why this type of chemical bonding is important.

Are All the Elements Discovered Already?
Are there any new elements? Find out if there are any elements left to be discovered and how they would be found.

Element List - Atomic Number, Element Name and Symbol
Here's a list of all of the chemical elements of the periodic table ordered by increasing atomic number. The names and element symbols are provided.

How To Make Colored Smoke Bombs Work
You might think making colored smoke is as easy as adding a chemical that burns in a color, but that is not how colored smoke works. Here are tips and tricks to get success making colored smoke.

You Might Be an Engineer If
You might be an engineer if any of these traits or situations apply to you! Readers respond with ways to tell a person does engineering for a living.

4th of July Science Projects
Are you seeking fun science projects that you can associate with the 4th of July? Try this collection of science projects that involve fireworks and red, white, and blue.

Dangerous Household Chemicals - Common Products
Many common household chemicals are dangerous. Here's a list of some of the most dangerous household chemicals, including the ingredients to watch for and the nature of the risk.

Engineer vs Scientist - What's the Difference?
Although engineering and science are related, they aren't the same thing. Here is a look a the difference between an engineer and scientist, both from a practical and philosophical perspective.

Funny Engineering Jokes
Find a funny engineering joke or riddle. These are jokes submitted by readers about all branches of engineering.

Uses for Muriatic Acid or Hydrochloric Acid
Have you ever wondered what muriatic acid or hydrochloric acid is used for? Readers share uses for the chemical at home and at work.

Jokes About Engineers and Engineering
Browse this collection of engineering jokes, engineering riddles and other engineer humor.

Chemistry Jokes from Readers
Readers share their favorite chemistry jokes, riddles, puns, and other variations of chemistry, element, and periodic table humor.

10 Examples of Electrical Conductors and Insulators
This is a list of 10 examples of materials that are electrical conductors and insulators and an explanation of why some materials conduct better than others.

Tips To Make Nail Polish Dry Faster
Do you need your nail polish to dry quickly? Here are tips from readers explaining how they got their nails to dry... fast!

What Is Mylar? - Definition, Properties, How It's Made
You may be familiar with Mylar in shiny helium-filled balloons, solar filters, space blankets, protective plastic coatings or insulators. Here's a look at what Mylar is made of and how it is made.

How to Prepare Carbon Dioxide Gas
These are instructions for preparing carbon dioxide gas from calcium carbonate and hydrochloric acid.

Chemistry Element Jokes
Browse a collection of reader-submitted element jokes and periodic table jokes. Chemistry is funny!

Homemade Mosquito Repellents That Work
These homemade mosquito repellents really work! Readers share their personal recipes, tips, and tricks for keeping mosquitoes away the natural way.

What It's Like Being a Chemist
Have you ever wondered what it's like being a chemist? Here, real chemists share their job experience, including the pros and cons of working in chemistry.

Grow Red Potassium Ferricyanide Crystals
These are easy instructions for growing red potassium ferricyanide crystals.

How To Perform a Quick Saponification Reaction
Step-by-step instructions for a quick saponification reaction using methyl salicylate and sodium hydroxide.

Why Is Chemistry Important?
Why is chemistry important? The answer depends on who you ask. Here is a selection of answers to the question, from scientists, teachers, students, and readers just like you.

How To Light Fireworks Safely
Here are some tips to help you light your fireworks safely.

Science Facts and Trivia
Get science facts and trivia. These interesting facts were submitted by readers and verified before being published.

4th of July Science Projects
Are you seeking fun science projects that you can associate with the 4th of July? Try this collection of science projects that involve fireworks and red, white, and blue.

Coat the Fuse with Flammable Chemicals
The last step to making a fireworks fuse is coating the prepared fuse with flammable chemicals so it will burn at a controlled rate.

Strip the Matches
The next step is to strip the heads from the matches so that you can apply the chemicals to the paper fuse.

How to Make Your Own Fireworks Fuse - Introduction
If you're making your own fireworks, you might want to try making your own fireworks fuses, too. This is an easy beginner project that uses common household materials.

Prepare the Paper for the Fuse
The first step of making a homemade fireworks fuse is to prepare the paper that you will use as the basis for the fuse.

10 Examples of Mixtures
This is a list of 10 examples of mixtures and an explanation of whether the mixture is heterogeneous or homogeneous.

Beer's Law Definition and Equation
Get the definition of Beer's Law or the Beer-Lambert Law and learn the equation and the uses of this law in chemistry.

How to Determine the Equation of a Line
There are many instances in science and math in which you will need to determine the equation of a line. Here's a quick overview and example of how to determine the equation of a line from (x,y) data.

Quantitative Analysis Definition - Chemistry Glossary
This is the definition of quantitative analysis in chemistry, with examples and an explanation of how it differs from qualitative analysis.

How to Make Homemade Firecrackers
Firecrackers are extremely easy and inexpensive to make yourself. Learn how to make homemade firecrackers and how to light them safely.

Assemble the Homemade Firecracker
One you have all of the materials necessary to make firecrackers, you are ready to start putting the firecrackers together.

Light the Homemade Firecracker
Now that you have a homemade firecracker, you need to light it!

Adsorption Definition
Get the adsorption definition along with examples of adsorbents and the explanation of the difference between adsorption and absorption.

Signs You Are a Chemistry Major
Can people tell you are a chemistry major before you tell them? Yes! Here are the signs that set you apart from other students.

Why Is Chemistry So Hard?
Chemistry has a reputation as a hard class and difficult science to master. Here's a look at what makes chemistry so hard.

How To Measure Mass Using a Balance
Learn two methods to measure mass using a balance.

What Are the Most Common Injuries in a Chemistry Lab?
The chemistry lab can be a dangerous place. Have you ever wondered what types of injuries are most common? Here are some hazards to watch out for.

How Oobleck Works
Oobleck is a special type of slime or non-Newtonian fluid with properties of both liquids and solids. Do you know how it works? Here's the explanation.

Why Does Adding Salt Increase the Boiling Point of Water?
If you add salt to water, you increase its boiling point or the temperature at which it boils. Here's the explanation for why it happens.

How To Turn Baking Soda Into Washing Soda
It's easy to make washing soda (sodium carbonate) from baking soda (sodium bicarbonate). Here's what you do.

How To Use 'Periodic Table' in a Sentence
You may be asked to use the phrase

How Many Moles of C Atoms Are in 1 mol of Sucrose?
See how to determine the number of moles of carbon atoms in 1 mole of sucrose or table sugar.

Elements of a Good Hypothesis
Learn the elements of a good hypothesis and get examples of experimental hypotheses you can test.

Simple Method To Purify Sodium Chloride from Rock Salt
Learn how to apply two simple purification techniques to get table salt from impure rock salt.

19 Interesting Selenium Facts
Selenium is a chemical element that is found in a wide variety of products. Here are some interesting facts about selenium.

How To Make Powdered Olive Oil - Molecular Gastronomy
Molecular gastronomy applies science to put a modern spin on traditional foods. Use this simple recipe to make powdered olive (or other) oil. It's melts in your mouth, not on your plate. I also explain how to make powdered alcohol.

Examples of Organic Chemistry in Everyday Life
Organic chemistry is the study of chemical reactions in living organisms, but it applies to more than your body. Here are examples of everyday organic chemistry in the world around us.

What Is an Exact Number?
Learn what an

Gallium Spoon Tricks
Amaze your friends with these simple gallium spoon tricks. The 'tricks' are based on chemistry, so they make great science demonstrations, too.

Why Protons and Neutrons Stick Together in the Nucleus
Protons repel each other because of their electrical charge, yet stick together with neutrons in the atomic nucleus. Here's the explanation for why that happens and the forces that hold atoms together.

Foamy Bath Paint Recipe
Make fluffy, foamy colorful bathtub paint using safe ingredients. The recipe is almost as fun to make as it is to use. Here is what you do.

Does Alcohol Go Bad?
Learn whether or not alcohol has a shelf life and how you can tell if it goes bad.

Anti-Gravity Water Science Magic Trick
Perform a science magic trick that makes water appear to have anti-gravity properties.

Why You Shouldn't Mix Bleach with Alcohol or Acetone
Mixing chemicals can be a bad idea, particularly if one of the chemicals is bleach. Here's a look at why you shouldn't mix bleach with alcohol or acetone.

What Is the Importance of Color on the Periodic Table?
Learn why most periodic tables are colored and about the importance of the colors.

Chemistry Test Bank
Here's a chemistry test bank you can use for writing tests or to practice chemistry problems.

How To Make Copper Acetate from Copper
Learn how to make copper acetate from copper pennies or wire and other household chemicals. You can use the copper acetate to grow natural blue-green crystals.

Health Risk from Butter-Flavored Popcorn
You can get a condition called popcorn lung from eating microwave popcorn. Here's a look at the chemical involved and how to avoid it.

Aluminum or Aluminium?
Element 13 is called either aluminum or aluminium. Here is a look at the reason for the two different names.

Gravimetric Analysis Definition
Gravimetric analysis definition as used in chemistry.

Examples of Electrical, Thermal Conductors & Insulators
Get examples of electrical and thermal conductors and insulators.

Electrum Metal Alloy
Learn about the composition, properties, uses, and history of electrum or green gold.

10 Interesting Magnesium Facts
This is a collection of fun and interesting facts about the element magnesium.

Make Frozen Bubbles with Frost Patterns
If it's really cold outside, go outdoors and blow bubbles that freeze into frost patterns.

What Is the Difference Between Quantity and Unit?
Learn the difference between a unit and a quantity and get examples.

Why Is Water More Dense Than Ice?
Learn why water is more dense than ice so that ice floats on water.

Enediol Definition
Enediol definition as used in chemistry.

Why Is Snow White?
Understand why snow is white even though ice and water are clear.

Monatomic or Monoatomic Elements
Learn what monatomic elements are and get examples of them.

Alkoxide Definition
Alkoxide definition as used in chemistry.

Steel
Learn what steel is, how it is made, and about its properties.

Alkalinity Definition
Alkalinity definition as used in chemistry.

What Is an Experimental Constant?
Learn what an experimental constant is and get examples of types of constants.

Definition of Dipole Moment in Chemistry
Get the definition of a dipole moment with an explanation of an example.

Distillate Definition
Distillate definition as used in chemistry.

How Many Years of School Does It Take to Become a Chemist?
Chemists study matter and energy and reactions between them. You'll need advanced courses to become a chemist. Here's a look at how many years of school you'll need.

How Much Water Vapor Is in the Earth's Atmosphere?
Have you ever wondered how much water vapor is in the Earth's atmosphere or what the maximum amount is that air can hold? Here's the answer to the question.

How To Use a Crayon as a Candle
If you don't have a candle, but need some light, make a candle from a crayon! It's easy to do, plus each crayon burns about half an hour.

What Is the Hardest Element?
Can you name the hardest element? It's an element that occurs naturally in pure form and has a hardness of 10 on the Mohs scale. Chances are you have seen it. Here's the answer.

What Is Distilled Water?
Here's an explanation of what distilled water is and how it's made.

Lipids - Types of Lipids and Where They Are Found
Lipids are a diverse group of biological molecules. Here is a look at different types of lipids and where they are found.

How to Make Homemade Dry Shampoo
Dry shampoo is a type of shampoo that you apply to dry hair and blow or brush out, taking excess oil and grime with it. Here are several easy and inexpensive recipes for homemade dry shampoo.

Debye Temperature Definition
This is the chemistry definition of Debye temperature.

How Salt Preserves Food
Before refrigeration became common, salt was a popular food preservative. Here's how salt preserves food.

Introduction to Lipids in Chemistry
Lipids are a class of naturally-occurring organic compounds that you may know by their common names: fats and oils. Here's a look at the function, structure, and physical properties of lipids.

How to Make a pH Indicator Solution
This is a recipe for making phenolphthalein pH indicator solution.

Chemical Storage Color Codes
This is a table of chemical storage code colors, as devised by J. T. Baker. These are the standard color codes in the chemical industry.

What Is NFPA 704 or the Fire Diamond?
You probably have seen NFPA 704 or the fire diamond on chemical containers. Here is a look at what NFPA 704 is and what the colors and codes on the diamond mean.

What Is The Formula For Charles' Law?
Charles' Law is a special case of the ideal gas law. This law only applies to ideal gases held at a constant pressure allowing only the volume and temperature to change.

What Is The Formula For Gay-Lussac’s Law?
Gay-Lussac's Law is a special case of the ideal gas law. This law only applies to ideal gases held at a constant volume allowing only the pressure and temperature to change.

Chemical Composition of Petroleum
Petroleum or crude oil is a complex mixture of hydrocarbons and other chemicals. Here is a look at the properties and chemical composition of petroleum.

How To Make 0.1 M Sulfuric Acid Solution
These are instructions for making a 0.1M solution of sulfuric acid or H2SO4, from concentrated sulfuric acid and distilled water.

Is Brass a Solution?
Is brass a solution or a mixture? Here is a look at brass and other alloys in terms of chemicals solutions and mixtures.

How To Test Baking Powder and Baking Soda for Freshness
Baking powder and baking soda lose their effectiveness over time, which can ruin your baking. Here's how to test baking powder and baking soda to make sure they are still good.

Chemistry of Carbohydrates
Carbohydrates or saccharides are the most abundant class of biomolecules. Carbohydrates are used to store energy, though they serve other important functions as well. This is an overview of carbohydrate chemistry, including a look at the types of carbohydrates, their functions, and carbohydrate classification.

Methyl Definition
This is the chemistry glossary definition of methyl.

Do Ice Cubes Melt Faster in Water or Air?
Do ice cubes melt faster in water or in air? If you watch ice cubes melt, it may be hard to tell whether they melt faster in water or air, but if the water and air are the same temperature, ice melts more quickly in one than in the other.

How to Make Sodium Silicate or Water Glass
You can prepare sodium silicate or water glass from gel beads (silica) and drain cleaner (sodium hydroxide). Sodium silicate can be used to make chemical gardens, like those that result from Magic Rocks.

Biochemistry - Introduction and Overview
Biochemistry is the science in which chemistry is applied to the study of living organisms and the atoms and molecules which comprise living organisms. Take a closer look at what biochemistry is and why the science is important.

Which Gasoline Should You Buy?
Here's a look at what you need to know before you buy gasoline. Learn about octane ratings and gasoline formulations so you'll know which gas to buy at the pump.

Measurement Definition - Glossary of Chemistry Terms
This is the glossary definition of measurement.

Definition of Meniscus and Examples
This is the science glossary definition of meniscus.

Positron Definition
This is the definition of a positron.

Chemistry Quick Review of Avogadro's Law Calculation
Avogadro's Law is a specific instance of the Ideal Gas Law in which the volume of a gas is directly proportional to the number of moles at constant temperature and pressure. Here's how to solve a direct proportionality problem using Avogadro's Law.

Glossary of Organic Chemistry Terms
This is an organic chemistry glossary. Look up definitions of common and important organic chemistry terms.

Who Invented the Periodic Table?
Do you know who described the first periodic table of the elements that ordered the elements by increasing atomic weight and according to trends in their properties? I'll give you a hint. It was not Dmitri Mendeleev. The actual inventor of the periodic table is someone rarely mentioned in chemistry history books.

How to Supercool Water - Two Methods
You can cool water below its stated freezing point and then crystallize it into ice on command. This is known as supercooling. These are step-by-step instructions for supercooling water at home.

Science Fair Project Lab Report Template
You can fill in the blanks of this science fair project report template to prepare a science fair report quickly and easily.

Online Selection of Printable Graph Paper
Do you need to print some graph paper? This is a selection of different types of free graph paper in pdf format that you can save and print as needed.

What Is Volume-Volume Percentage?
This is the definition of volume-volume percentage.

Water Chemical Definition
This is the definition of water.

Why Does Salt Melt Ice? Understanding How It Works
You know that you can sprinkle salt on an icy road or sidewalk to help keep it from becoming icy, but do you know how salt melts ice? Take a look at freezing point depression to understand how it works.

What Is a Wavelength?
This is the definition of wavelength together with examples.

Weight Definition
This is the definition of weight.

Rohypnol (Flunitrazepam, Roofies) Fast Facts
Learn what rohypnol is, why people take rohypnol, how it's made, and what risks are associated with using rohypnol.

VSEPR Theory Definition in Chemistry
This is the definition of VSEPR with examples of molecular geometry using Valence Shell Electron Pair Repulsion Theory.

Visible Light - Chemistry Definition
This is the definition of visible light.

How to Solve a Redox Reaction Problem
This is a worked example redox reaction problem showing how to calculate volume and concentration of reactants and products using a balanced redox equation.

What Was the First Known Element to Man?
Some of the chemical elements were known to ancient man. Can you name them?

Enthalpy Change Definition
This is the definition of an enthalpy change.

What Is the Definition of an Amino Acid?
Amino acids are considered to be the building blocks of proteins. Some examples are Lysine, Glycine and Tryptophan.

What Are Some Examples of Polymers?
Do you need some examples of polymers? Here is a list of materials that are polymers, plus some examples of materials that are not polymers.

An Introduction to Alchemy
What is alchemy? This is an answer to the question and a brief introduction to alchemy.

Make Easy Soap Slime
Soap slime is an easy-to-make type of slime that is fun to play with and makes clean-up fun. Here's how you make it.

How to Make Modeling Clay at Home
There are several ways you can make homemade clay for modeling, making ornaments, and for other projects and crafts. Here are several clay recipes, including a refrigerator clay, a clay you bake to harden, one you coat for a glossy finish, and one that works up and stays pliable much like store-bought modeling clay.

Converting Milliliters to Liters - Worked Problem
This example problem illustrates the method to convert milliliters to liters.

Empirical Formula Definition and Examples
This is the definition of empirical formula.

Formation Reaction - Chemistry Glossary Definition
This is the definition of a formation reaction.

Frequency Definition
This is the definition of frequency

Main Group Elements Definition
This is the glossary definition of the main group elements.

What Is a Manometer? (Definition)
This is the glossary definition of a manometer.

Quantum Definition
This is the glossary definition of quantum.

How to Do the Traveling Flame Science Trick
You know you can light a candle with another candle, but if you blow one of them out, did you know you can relight it from a distance? In this trick, you'll blow out a candle and relight it by causing flame to travel along a path of smoke.

Pollution and Green Chemistry Science Fair Projects
This is a collection of ideas for pollution and green chemistry science fair projects.

Funny Unit Conversions - Science Unit Conversion Humor
This is a list of funny, made-up scientific unit conversions.

What Is an Azeotrope?
This is the definition of an azeotrope.

Gel - Definition
This is the definition of a gel.

Scientific Definition of a Theory
This is the science definition of a theory.

Discontinued Element Symbols
This is a list of element symbols and names that are placeholders for final names or else are no longer in use.

Vector Definition
This is the science and engineering definition of a mathematical or Euclidean vector.

How to Make Chemical Fire Without Matches or a Lighter
Learn four ways to make fire using chemical reactions. No matches or lighter are needed to start the fire.

List of the Strong Acids
These are the strong acids. There are only six strong acids, so you might want to commit the list of strong acids to memory.

Photon Definition
This is the definition of a photon.

What Is Saturated Fat?
This is the definition of a saturated fat.

Solubility Product - Chemistry Glossary Definition
This is the definition for solubility product.

Unsaturated Fat Definition
This is the definition of unsaturated fat.

Unsaturated Solution Definition
This is the definition of an unsaturated solution.

Trading Places - Liquid Science Magic Trick
Take two glasses of different-colored liquids and watch the liquids switch places in the glasses. This science magic trick or demonstration can be performed using many different liquids.

Candle Science Magic Trick - Blow Out a Candle Using Science
You know you can put out a candle flame by pouring water on it. In this science magic trick or demonstration, the candle will go out when you pour 'air' onto it.

Ionization Energy of the Elements
Ionization energy is the energy required to remove an electron from an atom or ion in the gas state. Here's more information about what ionization energy is and what trends in ionization energy you can expect to see on the periodic table.

Activated Complex Definition - Glossary of Chemistry Terms
This is the chemistry and chemical engineering definition of activated complex.

Paramagnetism - Chemistry Glossary Definition
This is the glossary definition of paramagnetism.

Pascal Definition
This is the glossary definition of a Pascal, an important unit of pressure used in science and engineering.

Percentage Yield (Definition)
This is the definition for percent yield or percentage yield.

Periodic Law Definition
This is the definition of periodic law.

Periodic Trend Definition
This is the chemistry glossary definition of periodic trend.

Chemistry - Phase Change Definition
A phase change is a change in the state of matter of a sample. A phase change is an example of a physical change. Also Known As: phase transition

Current Definition - Science and Engineering Glossary
This is the science and engineering definition of current.

Science and Engineering Definition of PPM
This is the definition of PPM or parts per million.

Alphabetical List of Mineral Pictures
This is an alphabetical list of pictures of minerals, including mineral crystals, rough specimens, and minerals that have been cut for use as gemstones.

Chemical Reaction - Chemistry Definition
This is the definition of a chemical reaction with examples.

Monomer Definition in Chemistry
This is the definition of a monomer.

Activity Series of Metals - Predicting Reactivity
The activity series of metals is an empirical tool used to predict products and reactivity of metals with water and acids in replacement reactions and ore extraction.

Macromolecule Definition
This is the definition of a macromolecule.

Activity Series - Chemistry Glossary Definition
This is the definition of the activity series of metals.

Acute Health Effect (Definition)
This is the definition of acute health effect.

Aliphatic Compound (Definition)
This is the definition of aliphatic compound.

Alkenyl Group Definition
This is the definition of alkenyl group.

Daughter Isotope Definition
This is the definition of a daughter isotope.

Parent Atom Definition
This is the definition of a parent atom.

Parent Isotope Definition
This is the definition of a parent isotope.

Alpha Radiation - Definition of Science Terms
This is the definition of alpha radiation.

Amphoteric Oxide Definition in Chemistry
This is the definition of amphoteric oxide.

Background Radiation Definition
This is the the definition of background radiation.

Basic Anhydride or Base Anhydride Definition
This is the definition of basic anhydride or base anhydride.

Beta Radiation Definition
This is the definition of beta radiation.

Binary Acid Definition
This is the definition of binary acid.

Binary Compound Definition
This is the definition of binary compound.

Beta Decay Definition
This is the definition of beta decay.

Double Bond Definition in Chemistry
This is the definition of double bond.

What Is a Single Bond?
This is the definition of single bond.

Hydroxyl Group Definition - Chemistry Term
The hydroxyl group is a functional group consisting of a hydrogen atom covalently bonded to an oxygen atom.

What Is a Chemical Symbol?
This is the definition of chemical symbol.

How to Make Glowing Printer Ink
Learn how to make homemade glowing printer ink that you can use to print glowing pictures, iron-on transfers, posters, and more.

Combination Reaction - Chemistry Glossary Definition
This is the definition of combination reaction.

Definition of Condensation Reaction
This is the definition of condensation reaction.

Condensed Formula - Chemistry Glossary Definition
This is the definition of condensed formula.

Moiety Definition
This is the definition of moiety.

Chain Reaction Definition
This is the definition of chain reaction.

Decomposition Reaction Definition
This is the definition of decomposition reaction.

Deflagration Definition
This is the definition of deflagration.

Definition of Distillation - Examples
This is the definition of distillation.

Electron Capture - Definition
A type of radioactive decay where the nucleus of an atom absorbs a K or L shell electron and converts a proton into a neutron.

Definition and Examples of Ester - Chemistry
This is the definition of ester.

Flammable Definition
This is the definition of flammable.

Ether - Chemistry Definition
This is the definition of ether.

What Is a Halogenated Hydrocarbon?
This is the definition of halogenated hydrocarbon.

Specific Heat - Chemistry Definition
This is the definition of specific heat.

Slime FAQs - Answers to Common Questions about Slime
Do you have questions about making slime? Find answers to common questions about slime ingredients, coloring slime, how slime works, and how to store slime.

Learn About Wine Legs or Tears of Wine
Find out what it means when wine has wine legs or tears of wine and whether it indicates the quality of the wine.

Hydrolysis Definition
This is the definition of hydrolysis.

Inhibitor Definition
This is the definition of inhibitor.

Metallic Character - Chemistry Glossary Definition
This is the definition of metallic character.