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3-8

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Auditory, Visual

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Part of Zoom
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Experimenting with a Glass Xylophone

When you hit an empty glass with a spoon, both the glass and the air inside it vibrate. You hear these vibrations as sound through the air. In this video segment adapted from ZOOM, the cast observes how the pitch of sound changes when they add different amounts and types of liquids to glasses of different sizes and shapes.

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