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

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

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

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

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

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

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

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

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

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

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

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.

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.

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.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

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

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.

This science fair project idea explores whether talking to a plant will help it grow.

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

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!

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.

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

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.