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

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

This experiment investigates whether there are certain sounds that affect men and women differently

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

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

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.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

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

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Find out whether matching resonant frequencies can cause objects to shatter.

This science fair project idea produces varying pitches of sound.

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

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

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

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.

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

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

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