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.

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

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.

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!

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

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.

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!

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

How powerful is the reaction between baking soda and vinegar? Find out here!

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.

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

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

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.