While everyone else is paying attention to what they see, maybe you're focusing on what you can hear. Explore the physics of sound, musical instruments, and even how people respond when they hear music.

Lesson Plan Grade: 6th-8th
We are surrounded by sounds every day, ranging from unpleasant ones like traffic noise to enjoyable ones like music or singing birds. What makes these sounds different? Why are some louder or higher pitched than others? In this lesson plan, your students will investigate how the properties of a sound wave, like frequency and amplitude, affect the sounds we hear. They will do this using Google's Science Journal app and a homemade musical instrument—a rubber band guitar! Read more
NGSS Performance Expectations:
  • MS-PS4-1. Use mathematical representations to describe a simple model for waves that includes how the amplitude of a wave is related to the energy in a wave.
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