This science fair project idea produces varying pitches of sound.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

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

I scream, you scream, we all scream for homemade spearmint ice cream!

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

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

This science fair project idea produces sounds by creating vibrations using different objects.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

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

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

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

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

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

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!