This science fair project idea produces varying pitches of sound.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

How powerful is the reaction between baking soda and vinegar? Find out here!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

This science fair project idea explores whether talking to a plant will help it grow.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Give your budding young observers a chance to discover simple machines at use in their own home.

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.