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!

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

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.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

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.

Try this chemistry experiment with your curious kid and get some "shocking" results!

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

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

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.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

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.

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

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

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

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.