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    The Exploratorium
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    In this activity, learners separate the components of Gatorade using a home-made affinity column. In doing so, learners model the basic principle of affinity chromatography, a technique used to...

    $10 - $20 per student Ages 11 - 18 45 to 60 minutes
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    Lunar and Planetary Institute
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    In this activity, dry ice and other items are used to construct a demonstration model of a comet that illustrates the comet nucleus, coma, and tails. This activity introduces learners to the...

    $10 - $20 per group Ages 8 - 14 30 to 45 minutes

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