This science fair project explores discover whether the acidity of sour candy is comparable to that of battery acid.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

In this middle school activity, your child will learn how to press plants and create her very own herbarium, or plant library! Here's how:

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

This experiment evaluates if the temperature of the environment that you work in affects your ability to perform mental tasks.

Teach your child how butter is created by shaking up cream the old-fashioned way.

Brighten up your home with this fun activity! Make a summer sun print and teach your child the art of easy print making.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

How much water comes out of snow? Explore this timely question with your kindergarten scientist with this easy winter experiment.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

It's easy to plant your own in-home container garden! This planter contains pizza-themed herbs and is a perfect early gardening activity for kindergarteners.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

People have favorite flavors, but what about ants? Which ant food is the most popular?

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Check out this fun science project idea to measure the amount of vitamin C in ripe, half-ripe, unripe and stored oranges.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

This science fair experiment examines the relationship between gender, age, and smiling.