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    Smithsonian National Zoological Park
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    In this family or group activity, learners conduct a chromatography experiment to reveal the colors that leaves "hide" under their green pigments. Use this experiment to predict what...

    $1 - $5 per student Ages 6 - 14 45 to 60 minutes
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    University of Illinois Urbana-Champaign
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    In this activity, learners discover why only some types of plastic can be recycled. The objective of this activity is to increase awareness of recycling polymers through the use of the "three...

    $1 - $5 per group Ages 14 - adult 45 to 60 minutes