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

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

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

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

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

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.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

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.

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

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.

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?

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

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

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

.Have you ever had problems with your wifi signal strength? In this experiment you will learn about how wireless signals pass through the air and solid objects.

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.

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

This science project examines the history of earthquakes and what we can do to prevent future disasters.

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

This science fair project idea produces varying pitches of sound.

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.

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

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

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

This classic children's game demonstrates how sound travels through air vs. through a solid.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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

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

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.