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

In this project students determine which instruments composers use to create birdsongs and birdcalls in classical music.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

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

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

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

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

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:

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

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

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

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

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.

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

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.

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

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!

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

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!

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Experiment with magnetism in this 8th grade science activity in which your child will create a working compass using a steel needle, magnet, and jar.

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

Have your child try this classic experiment that demonstrates circular motion using a bucket and rope. Be careful, you might get soaked!

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

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

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