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.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

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

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this project students experiment with making music using only glasses of water.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

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

Find out whether a longer airplane will fly farther or a wider paper airplane.

Find out which kind of bubble wrap fares best when put in impact.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This project compares the strength of one, two, and three-ply toilet paper.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

This project tests the hypothesis that dark colors absorb more heat than light colors.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

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

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?