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This is an interactive periodic table of the elements or periodic chart of the chemical elements. Click on an element symbol on the periodic table to get detailed facts about the element.

Difference Between Baking Powder and Baking Soda - Cooking Substitutions

Get ideas for great high school science projects. These are projects targeted from the 9-12 grade educational level.

Find ideas for middle school science fair projects. These are projects suitable for the 6-8 grade level.

Get ideas for 8th grade science fair projects. These are experiments and topics suitable for upper middle school level science fair projects.

Find out why everyone wants to take a nap after the big Thanksgiving Day feast. Let's talk turkey and learn about L-tryptophan and carbohydrate metabolism.

Find elementary school science fair project ideas suitable for the kindergarten through fifth grade level.

Find an idea for a 7th grade science fair project or a science project targeted at the intermediate middle school level.

Use these step by step instructions to write and balance chemical equations.

Get ideas for 6th grade science fair projects. These are topics and experiments suitable for upper grade school or entry level into middle school.

Atom Basics Quiz - Test Your Chemistry Knowledge: structure quiz chemistry knowledge model of the atom question quiz science fundamentals

Learn how to make a smoke bomb. This is the list of materials required for making your own smoke bomb.

How to make your own baking soda volcano.

Baking powder and baking soda both are leavening agents, which means they help baked goods to rise. They are not the same chemical, but you can substitute one for another in recipes. Here's how.

Get ideas for 5th grade science fair projects. These are experiments and topics suitable for upper elementary school level science fair projects.

Learn about endothermic and exothermic chemical reactions and get instructions to perform your own hot and cold chemistry.

Learn about the periodic properties or trends in the periodic table of the elements.

These are step by step instructions for growing your own sugar crystals or rock candy.

Calculate the concentration of chemical solutions in percent composition by mass, molarity, molality, and normality. Make dilutions by adding the correct volume of solvent to make a new solution.

Is it really possible to drink to much water? Learn about water intoxication and hyponatremia.

These science fair project ideas provide information and questions you can develop into a science fair project. Bookmark this page or check back regularly, since new ideas are added. You may submit an idea for a science fair project to be included in the list.

Download or print these periodic tables to help work chemistry problems or to predict properties of the elements.

Chemical Names of Common Substances: aluminum potassium sulfate aqua ammonia aqua fortis red vermillion chemical names of common substances

Get ideas for 4th grade science fair projects. These are experiments and topics suitable for elementary school level science fair projects.

This is a recipe for homemade slime.

Elements in the Human Body

Find an idea for a 9th grade science fair project or a science project targeted at the entry level for high school.

Are you considering getting a rock tumbler? Before you make a purchase, learn about the different types of rock tumblers and get tips on choosing the best tumbler for your needs.

Learn the one and two letter symbols for the chemical elements.

How to Grow Great Crystals - Tips, Tricks, and Techniques of Crystal Growing

Can you recognize the elements when you see them? Here's a quiz that tests your ability to identify an element based on its appearance.

This is a collection of chemistry worksheets in pdf format. The answers to the questions are available on separate worksheets so you can fill them out and then check your work.

Learn what crystal meth is, why people take crystal meth, how it's made, and what risks are associated with using methamphetamine.

Don't worry if you don't have a chemistry lab. These projects use materials you can find around the house.

Get step-by-step instructions for making classic slime.

Make your own pH indicator solution! Red cabbage juice contains a natural pH indicator that changes colors according to the acidity of the solution. Red cabbage juice indicator is easy to make, exhibits a wide range of colors, and can be used to make your own pH paper strips.

Learn how to color fire using these fun and easy instructions.

Chemical Bonds & Compounds Chemistry Quiz: electron dot structures ionic covalent bonds lewis electron dot structures chemistry quiz chemistry quizzes

Grow your own sparkling clear or colored borax snowflakes.

Lab reports are an essential part of all laboratory courses and usually a significant part of your grade. If your instructor gives you an outline for how to write a lab report, use that. 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.

These are examples of worked chemistry problems. Printable worksheets with questions and answers are also provided.

Basics of Acids and Bases Quiz - Test Your Chemistry Knowledge

Element Symbol Quiz - Test Your Chemistry Knowledge

Test your general science knowledge with this fun multiple choice quiz.

Find out what chemical and physical changes are, get examples, and learn how to tell them apart.

Learn how to assign oxidation numbers to keep track of the distribution of electrons during a chemical reaction.

Instructions for making your own chemical dip to polish silver.

Atomic Structure Quiz - Test Your Chemistry Knowledge

Get periodic table facts on the chemical and physical properties of the element neon.

This is a list of chemical reactions that are endothermic reactions.

Which chemical element are you? Technically speaking, you mostly consist of carbon, hydrogen, and oxygen, but which element best represents your personality? Take this fun multiple choice quiz to find out.

Mood rings have a stone that changes color depending on your emotions. Learn how mood rings work.

Acid-Base Indicators: hydrogen ion concentrations hydrogen ion concentration acid base indicators useful weak acids sodium salts

Most of the chemical elements are metals of one variety or another. Learn about some of the properties common to this large element group.

Snow Images - Scanning Electron Micrographs

List of materials that glow under ultraviolet or black light

Get ideas for 3th grade science fair projects. These are experiments and topics suitable for grade school level science fair projects.

Crystals can make interesting and fun science fair projects. Here's a look at some tips and ideas for science fair projects for crystals and crystal growing.

Your science fair project may require a lab report or essay. Here's how to prepare a report to document your research.

Learn about the common properties shared by the alkali metals.

Learn to distinguish between ionic and covalent bonds, and determine whether a bond will be polar or nonpolar.

Step-by-step instructions for balancing redox reactions for conservation of mass and charge in electrochemistry.

Learn how to remove fluoride from drinking water.

Fireworks combine art and science. Learn about the chemistry behind firework colors, including the mechanisms of color production and a table listing colorants.

Rock candy is candy made by crystallizing sugar. You can grow sugar crystals yourself, plus add color and flavor to make rock candy that you can eat.

A flame test is an easy experimental technique used to help identify a metal or ionic salt based on its emission spectrum when it is heated in a gas flame. Here's how to perfom a flame test and interpret the results of the test.

The hardest part of doing a science fair project is narrowing down the choices and picking a topic for your project or experiment. Here's some advice on where to start and how to recognize a good idea.

Make Ice Cream in a Baggie - Freezing Point Depression and Colligative Properties

Butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) are added to many foods to prevent fat spoilage. This article describes what BHA and BHT are, what they do, and how they do it. There is a fairly lengthy list of references because there is controversy over the health effects of BHA, BHT, and other additives.

Biohazard Sign

If you have fruit, a couple of nails, and wire then you can generate electricity to turn on a light bulb. Learn how to make a fruit battery. It's fun, safe, and easy.

You can make fake snow using a common polymer. The fake snow is non-toxic, feels cool to the touch, and looks similar to the real thing.

If you were a famous mad scientist, which mad scientist would you be? Take this fun multiple choice quiz to find out.

Melting Snow & Ice with Salt - Colligative Properties and Freezing Point Depression.

Do you want to explore science, but can't find or can't afford chemicals? Here are science experiments and projects you can do that use common kitchen chemicals.

Get periodic table facts on the chemical and physical properties of the element iron.

STP, Standard Temperature and Pressure definition, as used in chemistry and other physical sciences.

These are ideas for science fair projects that involve food or cooking chemistry.

Make your own ferrofluid, or liquid magnet, which can be used with a magnet to change the liquid's density and to form spikes and other amazing shapes.

Electronic Configuration of the Elements - General Chemistry Table - Hydrogen through Krypton

Instructions for growing a big alum crystal.

Making a baking soda and vinegar volcano is safe and easy, plus it only requires a few inexpensive kitchen ingredients.

Compound Names Chemistry Quiz: multiple choice test chemistry quiz chemistry quizzes ionic compounds mineral chemistry

Get periodic table facts on the chemical and physical properties of the element nickel.

Use this chemistry glossary to look up the definitions of chemistry terms beginning with the letter A.

Learn about the characteristics and common properties of the transition metals.

This is a collection of the most recent features added to About's Chemistry website, authored by Dr. Anne Helmenstine.

Characteristics and Molecular Structures of Protein-Derived Amino Acids - Chemistry

Periodic Table of the Elements Quiz - Test Your Chemistry Knowledge

Get facts on the chemical and physical properties of the element oxygen.

Heats of Formation - Thermochemistry Table: endothermic exothermic reactions molar heat kj mol chemistry problems heat of formation

Get facts on the chemical and physical properties of the element hydrogen.

This is a worked example problem showing how to calculate mass percent composition.

Get periodic table facts on the chemical and physical properties of the element calcium.

Learn why carbon monoxide is dangerous to your health and how carbon monoxide detectors and alarms work.

Are you searching for something fun and educational to do that is suitable for kids? Here are some great chemistry activities and projects to get you started.

Get information about the common characteristics of the nonmetals.

Here are worked examples problems for mole to gram or gram to mole conversions.

Black powder is used as a propellant for bullets, as well as for fireworks and rocketry. Learn how gunpowder works and a bit about its history

Find out why you cry when you cut onions and how you can keep it from happening.

Get periodic table facts on the chemical and physical properties of the element silver or argentum.

Learn about natural ways to repel mosquitoes and develop strategies to reduce your exposure to them.

Set money on fire and watch it burn out without damaging the bill. This is a nice magic trick, based on everyday chemistry.

Stoichiometry Chemistry Quiz: multiple choice test chemistry quiz chemistry quizzes mineral chemistry mad scientist

Temperature Converter - Kelvin Fahrenheit Celsius: celsius temperature converter fahrenheit celsius chemistry articles temperature conversion homework help

Use chemistry to make a bouncing polymer ball, then alter the procedure to see the effect the changes have on the charactertistics of the bouncing ball.

This is a timeline showing when each of the elements was discovered.

Use this redox-based iodometric titration to determine the amount of Vitamin C or ascorbic acid in juice and other samples.

Are you interested in growing crystals, but unsure where to start? This is a list of the best crystal growing projects for beginners or anyone seeking top crystals projects based on simplicity, safety, and great results.

Get periodic table facts on the chemical and physical properties of the element aluminum or aluminium.

Learn about the chemistry of metals by using chemistry to clean pennies, oxidize them, and plate copper onto steel.

Chemistry of hard and soft water, with information about soaps, detergents, and water softening agents.

Learn how to synthesize aspirin, acetylsalicylic acid, from salicyclic acid. Get information about the history of aspirin, the effects of salicylates, and see the structures of the reactants.

Here are the names and formulas of some of the common acids and bases.

Make your own Christmas tree or cut flower preservative.

Get periodic table facts on the chemical and physical properties of the element sodium.

Get periodic table facts on the chemical and physical properties of the element lithium.

Types of Crystals - Shapes and Structures

This is an interactive periodic table of the elements showing the uses of elements in fireworks and pyrotechnics.

Get periodic table facts on the chemical and physical properties of the element sulfur.

Sodium acetate or hot ice is an amazing chemical you can prepare yourself from baking soda and vinegar. You can cool a solution of sodium acetate below its melting point and then cause the liquid to crystallize. The crystallization is an exothermic process, so the resulting ice is hot. Solidification occurs so quickly you can form sculptures as you pour the hot ice.

It's easy to grow your own table salt or sodium chloride crystals. All it takes is salt and boiling water. One method even yields crystals within a few hours. Here's what you need to know.

Learn how to find the empirical formula from percent composition data.

Get information about the properties shared by the noble or inert gases.

Element Symbol Quiz - Test Your Chemistry Knowledge

Explanation of Why Stainless Steel Resists Rust and Corrosion

The metalloids or semimetals share some of the properties of metals and some of the properties of nonmentals.

Learn about the chemistry behind the cleaning power of detergents.

Have you ever wondered how soap cleans? Here's an explanation of how soap works and an introduction to saponification, surfactants and emulsifiers.

Get periodic table facts on the chemical and physical properties of the element magnesium.

See chemical and molecular structures. These are structures having names starting with the letter A.

Learn about molecules, moles, and Avogadro's number.

Do you understand the trends of periodic table periodicity? Here's a ten question multiple choice quiz you can take to test your periodic table knowledge.

The halogens are a specific group of nonmetals with some distinctive properties.

Most abundant element in the universe and on the earth.

Stink bombs smell terrible, but they are also fun. Here are instructions for how to use everyday materials to make your own stink bombs.

Get ideas for science fair projects suitable for college level students. Most of these project are targeted for the freshman year.

Start learning chemistry with the basics. Learn what chemistry is, what chemists do, and why it's important to study chemistry.

Get facts on the chemical and physical properties of the element helium.

Functional groups are collections of atoms in a molecule that participate in characteristic reactions. If you are taking organic chemistry, it's a good idea to memorize important functional groups or at least bookmark a past listing functional groups so that you can refer to it.

Chemistry of Diamonds

Chemistry Trivia Quiz: chemistry trivia chemistry quiz chemistry quizzes mineral chemistry quiz fun

Several factors affect the rate at which chemical reactions proceed. Understanding these factors will help you predict the direction and speed of a chemical reaction.

Get periodic table facts on the chemical and physical properties of the element carbon.

How well do you know laboratory safety signs and hazard symbols? Take this fun quiz to see if you can recognize potential dangers in the lab.

Chemical Structure and Preparation of Soap - Saponification - Chemistry

Understanding acids and bases is important for grasping chemistry concepts. Here's an introduction to acids and bases, with definitions for key acid and base terms.

Learn about strong and weak acids and bases. Get definitions and examples of each type.

Here's a look at some of the career options available to you in the field of chemistry.

Learn about the difference between a scientific law, hypothesis, and theory.

You can teach yourself general chemistry with this step-by-step introduction to the basic concepts.

Epsom salt crystals are easy to grow and form quickly. Here's what you need to know to make your own magnesium sulfate crystals.

Learn about the different types of chemical reactions and get examples of the reaction types.

The alkaline earths possess the properties shared by all metals, but they have characteristics common to their own group as well.

Get periodic table facts on the chemical and physical properties of the element boron.

Chemistry of Autumn Leaf Color - Fall Leaves: autumn leaf color carbohydrate synthesis plant pigments color pigment leaf colors

Get periodic table facts on the chemical and physical properties of the element potassium.

Your science fair poster or display will present your project to the rest of the world and possibly to teachers and judges. Here's what you need to know to make your poster a success.

Introduce students to chemical reactions and experimentation using common materials and baggies.

Test your periodic table knowledge with this fun multiple choice quiz.

Food Chemistry Quiz: multiple choice questions chemistry quiz chemistry quizzes chemistry articles food chemistry

Learn some interesting facts about the element carbon.

Welcome to the wide world of chemistry! This is an introduction to Chemistry 101 and an index of concepts and tools to help you learn chemistry.

Valences of the Elements - Chemistry of the Periodic Table

Learn about hydrogen bonding and density to understand why ice floats.

Test your 6th grade general science knowledge with this fun multiple choice quiz.

Stimulate your own idea for a chemistry science fair project by looking at examples of chemistry projects other students have performed.

Element Number Quiz - Science Tests and Quizzes: periodic table of the elements number quiz number of neutrons number of protons nuclear symbols

Introduction to Qualitative Analysis: anions and cations cations and anions hcl group chemistry glossary inorganic chemistry

Make your own snow globe using common household materials.

Chemical Physical and Nuclear Changes Quiz - Test Your General Chemistry Knowledge

Find out why babies are born with blue eyes.

Learn about the periodic table of the elements. Find out about the history of the periodic table, how the elements are organized, and how to use the periodic table to predict the behavior of unfamiliar elements.

Borax is used as a multipurpose cleaner and bleach. How does it work? Learn how the chemistry of borax relates to its cleaning power. These same properties are also associated with certain health hazards.

Grow crystals quickly and easily with these top crystal growing projects.

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

There is a lot of science involved in sports. Combine your love of sports with science to come up with the perfect science fair project.

Learn about the five types of science fair projects, then decide which is right for you.

Learn how to make invisible ink using baking soda. Heat or grape juice is used to reveal the message.

Sports Drinks - Do They Hydrate Better? Comparison of beverages for hydrating during exercize

Get periodic table facts on the chemical and physical properties of the element argon.

You can use science to perform magic tricks and enhance any magic show. These tricks are great for use as science projects or just for fun.

Learn the essential steps of photosynthesis, the set of chemical reactions plants use to make their own food.

This is a summary of the past and present nomenclature or naming conventions for ionic compounds. The major prefixes and suffixes are explained and examples of their use are provded.

Get help with your science fair project. Find project ideas, tips for a good display and presentation, online help for questions you need answered right away, and other useful project resources.

This is a list of the solubility rules for ionic solids in water.

Get periodic table facts on the chemical and physical properties of the element titanium.

Table of Common Polyatomic Ions - Chemistry: common polyatomic ions table of common polyatomic ions chemistry chemistry chemistry table hydrogen carbonate

Are you confused about how chemical engineering differs from pure chemistry or other types of engineering? Here's an explanation of what chemical engineering is and what chemical engineers do.

Learn what rigor mortis is and why it happens.

Find out what a mole is and why this unit is used in chemistry.

Learn about reverse osmosis and find out how it is used to purify water.

Get periodic table facts on the chemical and physical properties of the element cobalt.

Law of Conservation of Mass definition, as used in chemistry, chemical engineering, and physics.

Ions, Isotopes, & Atoms Quiz - Test Your Chemistry Knowledge

There are six chemical elements that can be liquids at normal temperatures and pressures. Can you name them?

It's easy to make brilliant green fire. This cool chemistry project only takes two household chemicals.

pH of Household Products Quiz: multiple choice questions chemistry quiz metal quiz hydrogen ion chemistry articles

Get periodic table facts on the chemical and physical properties of the element phosphorus.

Make a rainbow in a glass using colored sugar solutions with different densities. It's easy and safe enough to drink.