Create sound from electromagnetic waves.
Create a working earphone by combining cup lids, a magnet, and a coil of magnet wire. The activity can be done as a step-by-step assembly or as a design exploration. Attach to a sound source and hear music from of a couple of cup lids!
Curriculum topics: Electricity, magnetism, electromagnetism, sound, air pressure, vibration
Kit includes: Idea sheet, 1 adapter/set of alligator clips, 30 lids, 10 magnet wires, sand paper, 10 ring magnets
Number served: 10
Recommended for ages 8 and up.
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