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    University of Illinois Urbana-Champaign
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    In this activity, learners identify different classes of matter based on physical properties. This lab activity introduces the key ingredients of concrete and provides a deeper understanding of the...

    $5 - $10 per group Ages 14 - adult 45 to 60 minutes
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    Miami Science Museum
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    In this activity, learners use marshmallows and gum drops to construct seven models of molecules. Learners classify (solid, liquid or gas) and draw diagrams of the molecules. Learners can also...

    1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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    Make
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    In this activity, learners use a pneumatic trough (see related activity) to generate and collect pure oxygen. Learners will test to see if they've generated oxygen by observing the combustion...

    Over $20 per student Ages 14 - adult 30 to 45 minutes