The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

This surprisingly good glue recipe comes from common kitchen items.

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.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Making your own glass cleaner is easy, effective and inexpensive!

For this activity your child will use the ready made glycerin base to create elegant rose petal hand soaps.

Want to give your teen some insight into the scientific method and get the house cleaned? This activity promises both!

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

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

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

This science fair project idea experiments with spinning color wheels and optical illusions.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

This science fair project idea produces varying pitches of sound.

Got a young scientist at home? Try this project with him!Create your own molecule design with this home-made clay recipe and some toothpicks!

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.