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Type: Multiple-Choice
Category: Waves and Sound
Level: Grade 4
Score: 5
Author: Ureesha
Last Modified: 5 years ago

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Waves and Sound Question

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Grade 4 Waves and Sound

When you yell, your vocal chords                     .
  1. stay open widely
  2. take in a lot of air
  3. become long and thin
  4. move back and forth
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