How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Illustrate the idea of light refraction with this exciting and mystifying experiment.

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

This activity is a great introduction to polymer chemistry. It might seem complicated, but all you'll need is the material found inside of a baby's diaper!

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

.Have you ever had problems with your wifi signal strength? In this experiment you will learn about how wireless signals pass through the air and solid objects.

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

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

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.

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

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!

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

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

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.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

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

What happens when colored beams of light mix? You might be surprised.

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

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

Future whistleblowers can learn about product safety standards with this exercise in writing and researching.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

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.

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.

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

Take the plunge into handcrafting with this neat and tidy soap recipe. Here's how to create your own personalized soap.