Design a hearing protection device to protect their ears from loud noises. Examine the properties of current protective hearing devices, materials.

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

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

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

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.

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

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.