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In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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This is an online simulation of how sound changes due to environment. How does place--like a cave, a pier, or a forest--affect certain sounds?

free Ages 4 - 8 5 to 10 minutes