The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

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

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 surprisingly good glue recipe comes from common kitchen items.

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

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

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

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

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

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

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

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!

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

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

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

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

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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

Set your teen on the beat in a real world "crime scene" investigation. Can he tell whose fingerprints are on a drinking glass?

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