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.

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

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

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.

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

This science fair project idea produces varying pitches of sound.

This science fair project idea explores whether talking to a plant will help it grow.

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

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