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    The Exploratorium
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    In this activity, learners explore how different deodorants work. Learners treat agar plates with different types of deodorants and compare the bacteria growth on the plates to the control sample.

    $10 - $20 per student Ages 11 - 18 1 to 7 days
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    Bill Nye
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    In this activity, learners discover how sweating makes us feel cooler. Learners put on one damp sock and one dry sock and sit in front of a fan. As the water in the damp sock evaporates, it makes...

    free Ages 4 - 14 5 to 10 minutes
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    The Exploratorium
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    In this activity, learners use a chemical reaction to visualize where moisture forms on the body. Learners use the Minor's iodine-starch test, a diagnostic test that doctors use to detect...

    $10 - $20 per group Ages 8 - 18 10 to 30 minutes
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    NASA
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    In this activity, learners will train to improve lung, heart, and other muscle endurance as they walk a progressive, measured distance. Learners measure out a course according to specific distances...

    free Ages 8 - 14 1 to 4 weeks