October 21

Straw Instruments

Fourth grade scientists have been studying sound. We flattened the end of a straw with our teeth, and then cut it like a reed. As we blew into the straw, sound was produced with vibrations. Next, we gradually cut the end of the straw, and as we did the pitch changed. So much fun!

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Posted October 21, 2019 by pbright2 in category Science

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