This classic children's game demonstrates how sound travels through air vs. through a solid.

Plants and light seem to be good buddies, but how far does the friendship really go?

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Start your toy engines -- this is going to be a fast and friction-filled race!

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Discover whether a metal will expand under hot water.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

This project examines what types of objects burn and which burn faster and cleaner.

This biodiversity project examines the biodiversity in your own backyard.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

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

Using a toy race car kids create a visual model of the Doppler Effect.

This science fair project idea produces varying pitches of sound.