The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

This science fair project idea shows how a vibrating object transfers energy to whatever it touches.

This science fair project idea demonstrates sonar mapping of the ocean floor.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

This science fair project idea produces varying pitches of sound.

Design a hearing protection device to protect their ears from loud noises. Examine the properties of current protective hearing devices, materials.

In this project students determine which instruments composers use to create birdsongs and birdcalls in classical music.

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

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