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    Perkins School for the Blind
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    This activity was designed for blind learners, but all types of learners can explore means of physically separating a mixture using dissolving, filtration, and evaporation. Separating a sand/salt...

    $1 - $5 per group Ages 11 - 18 10 to 30 minutes
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    Massachusetts Institute of Technology
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    This activity uses LEGO® bricks to represent atoms bonding into molecules and crystals. The lesson plan is for a 2.5 hour workshop (or four 45-minute classes). There is a "wet lab"...

    Over $20 per group Ages 11 - adult 2 to 4 hours
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    Oregon Museum of Science and Industry
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    In this experiment, learners will conduct chemical and physical tests to identify mystery substances. This experiment is very flexible, allowing educators to determine the number of unknowns to...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    American Chemical Society
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    This lesson focuses on molecular motion in gases. Learners compare the mass of a basketball when it is deflated and after it has been inflated. The inflated ball has the greater mass so learners...

    $5 - $10 per group Ages 11 - 14 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules. This is a good introduction to atoms and...

    $5 - $10 per group Ages 4 - 14 10 to 30 minutes
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    The Exploratorium
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    This Exploratorium activity can be used in many contexts because geysers are great opportunities for learning about heat and temperature changes as well as geological/space science phenomena. You&...

    1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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    National Health Museum
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    In this activity, learners cut wells in JELL-O© and load the wells with different detergent solutions. With this simple digest, they observe that many, but not all detergents contain an active...

    $1 - $5 per student Ages 11 - 18 4 to 24 hours
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    NASA
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    In this activity, learners build models of comets, using edible materials, to learn about comets' structure. Learners then use their senses to simulate a spectrometer to analyze "comets...

    Over $20 per group Ages 6 - 18 45 to 60 minutes
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    WGBH
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    In this tasty activity, learners make their own ice cream any day of the year in an exploration of heat and cold. Highlights include freezing and melting and the transition from liquid to solid....

    $1 - $5 per student Ages 6 - 11 45 to 60 minutes
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    The Exploratorium
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    If you have access to a copper metal tube, this activity does a great job demonstrating what happens to matter when it's heated or cooled. This activity requires some lab equipment.

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

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