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

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 cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

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

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

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.

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

Illustrate the idea of light refraction with this exciting and mystifying experiment.

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?

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

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

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

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.

This science fair project idea studies how talking on a cell phone affect driving?

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.

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

Looking for a way to help your teen explore the fun side of physics? How about a round of Saturday morning cartoons?

This activity will help your child review science concepts, learn new ones, and become familiar with examples of various concepts in science. Plus, it's fun!

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

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.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.