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

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

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

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

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.