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

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

Learn with makes water molecules work with this fun and easy science activity!

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Looking for a way to help your teen explore the fun side of physics? How about a round of Saturday morning cartoons?

Engineers in training can get started with this simple wheel-and-axle construction activity.

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

Stir up some enthusiasm for experimentation with this candy-cracking science 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.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

Here's an investigative activity in which your child will discover real-world names and uses for sugar and find out how it is hidden in many different foods.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

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.

The purpose of this science fair project is to build a basic radio.

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

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

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 activity will help your child review science concepts, learn new ones, and become familiar with examples of various concepts in science. Plus, it's fun!

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.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

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

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.

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.

In this fun activity, your child will create their very own solar oven to bake s'mores!