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Polarized Sunglasses
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In this activity, learners explore how polarizing sunglasses can help diminish road glare.
Vocal Visualizer
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With a bit of PVC, a laser, a can/cup, and a small mirror, you can make a device that visualizes you voice or any sound transmitted into the cup/can.
Screaming String Thing
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In this simple and fun activity, learners discover the relationship between vibration and sound by making a squeaky toy instrument out of simple household materials.
What's the Buzz?
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In this activity, learners construct a playable kazoo from inexpensive materials. They will experience how vibration creates sound waves and music.