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.

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.

.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.

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

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

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

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

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

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