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

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

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

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

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

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

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

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

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

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 fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

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.

.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.

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.

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.

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.

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.

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

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

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

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

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

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

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

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.

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.

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

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

Determine the relationship between the speed of a sound and the temperature of the air it passes through.