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    COSI
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    In this chemistry activity, learners will learn how to make their own pH indicator using cabbage leaves, and then test common household items with their homemade indicator. This is an excellent...

    $5 - $10 per group Ages 14 - 18 10 to 30 minutes
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    Community Science Workshop Network
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    In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors). Use this activity to introduce learners to concepts related to optics, light,...

    $1 - $5 per student Ages 8 - 14 10 to 30 minutes