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.

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.

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

In this project, waves of vibrations are experimented with using water in glasses.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

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.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

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

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This biodiversity project examines the biodiversity in your own backyard.