This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

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.

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.

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

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

Start thinking about how the internet works by assembling an Ethernet cable of your own!

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

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

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

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.

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

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

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

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

Show your teen how to make her own beeswax lip balm. It's one of the simplest do-it-yourself activities, and it's fun to make!

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

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

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Learn how matter transmits sound with a simple, hands-on experiment using sand, water and air.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

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.