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Make some noise! Hearing is the ability to perceive sound by detecting vibrations. But what is the connection between vibration and sound? We’ll use simple detectors and various sound-making objects to observe and help define this connection. Then, we’ll construct a tool to observe how light patterns produced by sound energy resemble waves and build a simple speaker that converts electrical energy into sound energy!

thumb_Sounds Alive!
experience: Learning Labs
grade: Grade 4
NGSS: Physical Science, PS3: Energy, PS4: Waves and Their Applications in Technologies for Information Transfer, 4-PS3-2, 4-PS3-4, 4-PS4-1, 4-PS4-3