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Helping Hand
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In this invention challenge activity, learners see how many objects they can grab with a homemade "bionic" arm.
How Our Environment Affects Color Vision
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In this lab (Activity #1 on page), learners explore how we see color.
Build a Band
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In this design challenge activity, learners build a four-stringed instrument that can play a tune.
Headphone Helper
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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.