This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

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.

Design a hearing protection device to protect their ears from loud noises. Examine the properties of current protective hearing devices, materials.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Bring back the groovy memories by making shrinky dinks using household materials, while learning about the science of plastics. Here's how to get started:

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!

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.