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

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

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

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

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.