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

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

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

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?

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!

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

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

This science fair project idea produces varying pitches of sound.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

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

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

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.

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

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

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

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

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

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.

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.

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!

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!

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

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

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.

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

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

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

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.