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

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

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

This science fair project idea produces sounds by creating vibrations using different objects.

This science fair project idea produces varying pitches of sound.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

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.

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

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

Teach your child how butter is created by shaking up cream the old-fashioned way.

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

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

An home science experiment for older students that teaches about the science behind heat.

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

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

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.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

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

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

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

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.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.