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.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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.

Give your budding young observers a chance to discover simple machines at use in their own home.

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!

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

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

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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

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

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

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 idea experiments with spinning color wheels and optical illusions.

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

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!

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

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

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

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.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.