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

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

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.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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