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.

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

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

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

This project determines what percentage of test subjects react adversely to the sound of fingernails on a chalkboard and explores their physiological responses.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

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.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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

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.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

In this challenge, students are tasked with creating a car that can be powered by a balloon!

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!

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

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.

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

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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.

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

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

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

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.