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How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

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.

This science fair project idea shows how a vibrating object transfers energy to whatever it touches.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

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.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

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

This science fair project idea demonstrates sonar mapping of the ocean floor.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.