Periodic Table - Interactive Periodic Table of the Elements
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 information for each element.

Baking Soda & Baking Powder
Difference Between Baking Powder and Baking Soda - Cooking Substitutions

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

Bouncing Polymer Ball
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.

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

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

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

Science Quiz - Test Your General Science Knowledge
Test your general science knowledge with this fun multiple choice quiz.

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

How to Write a Lab Report
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.

Build a Baking Soda Volcano
The chemical volcano is a classic sciece project. Baking soda and vinegar combine to produce carbon dioxide bubbly lava, which you can color to resemble a real volcanic eruption. See how to make your own baking soda volcano.

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

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

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

Chemistry Worksheets
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.

Boiling Point of Water
At what temperature does water boil? What determines the boiling point of water? Here's the answer to this common question.

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

Can You Drink Too Much Water?
Is it really possible to drink to much water? Learn about water intoxication and hyponatremia.

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

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

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

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

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

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

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

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

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

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

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

Love Chemicals
You've heard of people in love having chemistry. Take a look at the key chemicals involved in feeling love.

Tabla Periodica de los Elementos
This color printable periodic table of the elements includes the element name, atomic number, symbol, and atomic weight. The colors denote the element groups. (Esta tabla de colores para imprimir periódicos de los elementos que incluye el nombre del elemento, número atómico, símbolo, y el peso atómico. Los colores indican los grupos de elementos.)

Science Project Ideas
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.

Strong Acids
These are the strong acids. There aren't very many strong acids, so you might want to commit the list of strong acids to memory.

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

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

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

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

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

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

Make Slime
This is a recipe for homemade slime.

Everyday Chemistry Quiz - Test Your Knowledge of Everyday Chemistry
Element Symbol Quiz - Test Your Chemistry Knowledge

Chemical Names of 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.

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

Freezing Point of Water
What is the freezing point of water or the melting point of water? Are the freezing point and melting point the same? Are there any factors that affect the freezing point of water? Here's a look at the answers to these common questions.

Science Magic Tricks
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.

20 Chemistry Questions Quiz - 20 Chemistry Facts and Questions
Take a multiple choice quiz to test yourself about general knowledge in chemistry.

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

Common Polyatomic Ions
This is a list of some of the most common polyatomic ions. It is worth committing the polyatomic ions to memory, including their molecular formulas and ionic charge.

Make Rock Candy
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.

Remove Fluoride from Water
Learn how to remove fluoride from drinking water.

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

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

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

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

Element Picture Quiz - Test Your Recognition of the Elements
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.

Flower Preservative Recipes
It's easy and economical to make your own cut flower preservative. Adding floral preservative will help keep your flowers beautiful much longer than if you simply filled a vase with water.

Which Element Are You? - Element Personality Quiz
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.

Basics of Acids and Bases Quiz - Test Your Chemistry Knowledge
Basics of Acids and Bases Quiz - Test Your Chemistry Knowledge

Red Cabbage pH Indicator
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.

Element List
Here's a list of chemical elements ordered by increasing atomic number. The names and element symbols are provided.

Kitchen Science Experiments
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.

Remove Ball Point Pen Ink
Ball point pen ink is not a something that you can usually remove with simple soap and water, but there is an easy and inexpensive way to remove pen ink from surfaces or clothing.

Black Light Glowing Materials
List of materials that glow under ultraviolet or black light.

Reaction Rate Factors
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.

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

Elements in the Human Body
Elements in the Human Body

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

Mood Ring Colors and Meanings
This chart shows the colors of the typical 1970s mood ring and the meanings associated with the mood ring colors.

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

Amino Acids
The amino acids are important biochemical molecules. Learn about the characteristics and structures of the amino acids. Get the three letter abbreviations for the amino acids and see how they are characterized according to their polarity and side chains.

Valentine's Day Chemistry
Love has a lot to do with chemistry, so if you're looking to connect Valentine's Day with chemistry, you've come to the right place. Take a look at these chemistry projects and topics that relate to Valentine's Day.

Formulas of Acids & Bases
Here are the names and formulas of some of the common acids and bases.

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

Ionic Compounds Nomenclature Quiz - Can You Name Ionic Compounds?
This multiple choice quiz covers ionic compound nomenclature. Test your ability to name ionic compounds and to write the formula of ionic compounds from their names.

Melatonin Chemical Structure
This is the chemical structure of melatonin.

Functional Groups - Organic Chemistry
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.

pH Calculations
Review how to calculate pH and what pH means with respect to hydrogen ion concentration, acids, and bases.

Gram - Mole Conversions
Here are worked examples problems for mole to gram or gram to mole conversions.

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

Bohr Model
The Bohr Model has an atom consisting of a small, positively-charged nucleus orbited by negatively-charged electrons. Here's a closer look at the Bohr Model, which is sometimes called the Rutherford-Bohr Model.

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

6th Grade Science Quiz - Test Your 6th Grade General Science Knowledge
Test your 6th grade general science knowledge with this fun multiple choice quiz.

Fruit Battery
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.

What Are Moles?
Find out what a mole is and why this unit is used in chemistry.

Acid-Base Indicators
Learn about what an acid-base indicator is and choose an acid-base indicator from this comprehensive table of acid-base indicators, based on pH range or color change.

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

How to Balance Redox Reactions
Step-by-step instructions for balancing redox reactions for conservation of mass and charge in electrochemistry.

Hot Ice or Sodium Acetate
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.

Hazard Symbol Quiz - Test Your Recognition of Hazard Symbols
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.

Melting Snow & Ice with Salt
Learn how you can use freezing point depression it melt snow and ice with salt and prevent it from re-freezing.

Flame Tests
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.

Molecular Formula Example
This is a worked example of how to determine the molecular formula of a substance when given the simplest formula and the mass from experimental data.

Metric to Metric Conversions Quiz - Test Your Chemistry Knowledge
Metric to Metric Quiz - Test Your Chemistry Knowledge

Grow a Borax Crystal Snowflake
Grow your own sparkling clear or colored borax crystal snowflakes.

Science Laboratory Safety Signs
This is a collection of safety signs commonly seen in a science laboratory, particularly a chemistry lab.

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

20 Science Questions Quiz - 20 Science Facts and Questions
Take a multiple choice quiz to test yourself about general knowledge in science.

Measurement Study Guide
Measurement is one of the foundations of science. Scientists use measurements as part of the observation and experimental parts of the scientific method. When sharing measurements, a standard is needed to help other scientists reproduce the results of an experiment. This study guide outlines the concepts needed to work with measurements.

Color Printable Periodic Table
Color Printable Periodic Table of the Elements

How Febreze Works
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.

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

Limiting Reactant and Yield
This is a worked example chemistry problem for determining the limiting reactant and calculating the theoretical yield of a chemical reaction.

Ionic Compound Nomenclature
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.

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

Types of Crystals
Types of Crystals - Shapes and Structures

Crystal Science 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.

Endothermic Reaction Examples
This is a list of chemical reactions that are endothermic reactions.

How To Color Fire
Learn how to color fire using these fun and easy instructions.

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

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

Chemical Engineering
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.

Chemical Reaction Orders
Learn how to classify chemical reactions using kinetics. Identify and define zero, first, second, mixed, and higher order reactions.

Atomic Structure Quiz - Test Your Chemistry Knowledge
Atomic Structure Quiz - Test Your Chemistry Knowledge

Mixing Bleach and Ammonia
Mixing bleach and ammonia is extremely dangerous, since toxic vapors will be produced. The primary toxic chemical formed by the reaction is chloramine vapor, with a potential for hydrazine formation. Here's a look at the chemical reactions involved in mixing bleach and ammonia, as well as some first aid advice if you accidentally become exposed to a bleach and ammonia mixture.

Gemstone List
This alphabetical list of gemstones includes the mineral names of the gemstones as well as links to photos of the gems.

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

Glowing Water
It's really easy to make glowing water that you can use as glowing water or as a glowing ingredient in other water-based projects.

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

Grow a Big Alum Crystal
Instructions for growing a big alum crystal.

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

Normality Calculation
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.

Density of Water
The density of water is related to its specific gravity. The density is the weight of the water per its unit volume, which depends on the temperature of the water. While you can round the density to 1 gram per milliliter, here are more precise values for you.

Make Silver Polishing Dip
Instructions for making your own chemical dip to polish silver.

Slime Recipes
There's more than one way to make slime. Actually, there are lots of different recipes! Here are some of the best recipes for different types of slime, from normal slimy slime to eerie glow-in-the-dark slime.

Why Onions Make You Cry
Find out why you cry when you cut onions and how you can keep it from happening.

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

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

Strong Bases
Strong bases are bases which completely dissociate in water. Here is a list of the most common strong bases.

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

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

Blank Periodic Table
Fill in the boxes of this blank periodic table.

BHA and BHT
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.

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

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

Angle Between Two Vectors
This is a worked example problem that shows how to find the angle between two vectors.

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

Alkali Metal Properties
Learn about the common properties shared by the alkali metals.

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

How Detergents Clean
Learn about the chemistry behind the cleaning power of detergents.

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

Nonmetal Properties
Get information about the common characteristics of the nonmetals.

Perfume Recipe
Perfume is a classic gift, but it's even better if it is a scent that you made yourself, especially if you package it in a beautiful bottle. Perfume you make yourself is free from synthetic chemicals and is fully customized to your personal taste. Here's how to make your own perfume.

Grow Table Salt Crystals
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.

Solution Definition
Solution definition, as used in chemistry, chemical engineering, and physics.

Pick a Science Fair Topic
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.

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

Metals List
Most elements are metals. This group includes the alkali metals, alkaline earth metals, transition metals, basic metals, and rare earth elements.

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

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

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