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.

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

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.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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

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.

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.

This science fair project idea produces varying pitches of sound.

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.

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

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

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

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

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

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