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

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

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.

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

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

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

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

This science fair project idea experiments with spinning color wheels and optical illusions.

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.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

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.