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

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

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!

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

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

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!

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 classic children's game demonstrates how sound travels through air vs. through a solid.

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

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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

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

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

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

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.

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

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

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

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