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

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.

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

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

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

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.

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

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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

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

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

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

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

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.

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

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