This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

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

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.

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

The purpose of this science fair project is to build a basic radio.

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