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

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!

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.

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

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

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.