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

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!

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:

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.

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

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.

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

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

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.

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.

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.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

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

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

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

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

By using static electricity generated from their body, a child can cause a small fluorescent lamp bulb to light up!

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Teach your child about using pumps to move water in this simple and educational preschool science activity!

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

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!