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

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!

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 demonstrates the principles of reflection through simple experiments involving mirrors and light.

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.

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.

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