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    University of Washington
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    In this activity (7th activity on the page), learners use their sense of hearing to find a "sound match." Learners shake containers filled with items like dry seeds, sand, beans, etc. and...

    $1 - $5 per group Ages 4 - 14 5 to 10 minutes
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    Institute of Physics
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    This is a highly visual demonstration that illustrates both the effects of density and chemical reactions. Like a density column, volcano eruption, and Alka-seltzer reaction all in one, learners...

    $1 - $5 per group Ages 4 - adult 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    Learners experiment with a commercially available liquid-crystal coaster. They warm the material with their hands for varying lengths of time and observe the changing colors that result. As the...

    $5 - $10 per group Ages 4 - 14 5 to 10 minutes
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    The Exploratorium
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    In this demonstration, learners investigate mass, gravity, and acceleration by dropping a wooden bar with a balloon attached to its underside, a mass suspended from it by rubber bands, and a sharp...

    $5 - $10 per group Ages 11 - 18 5 to 10 minutes
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    COSI
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    In this physics activity (page 6 of the PDF), learners will try to keep a marble in a bottomless cup without touching the marble inside. Observing the relationship between the cup and marble, they...

    $1 - $5 per student Ages 11 - 14 5 to 10 minutes
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    NISE Network
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    In this activity, learners build a LEGO® structure while wearing mittens. This activity shows learners how difficult it is to build small things when your tools are too big. This is a great...

    $1 - $5 per student Ages 4 - adult 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    Learners use a commercially available toy to experiment with density. They fill a chamber in the toy submarine with baking powder and release it into a tank of water. The material making up the...

    $1 - $5 per group Ages 4 - 14 5 to 10 minutes
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    The Exploratorium
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    In this activity, learners explore the properties of paper by constructing and modifying paper airplanes. This guide includes instructions for building a "Nakamura lock" plane, which may...

    1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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    American Physical Society
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    In this physics activity, learners use square blocks to explore how towers fall. Learners attach a piece of string to the side of a block and then construct a tall tower on top of this base block....

    1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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    Museum of Science and Industry, Chicago
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    Learners build a can that automatically returns after being rolled away. The can has a rubber band inside that stores energy as the can rolls one direction. The stored energy in the rubber band...

    $1 - $5 per student Ages 8 - 14 5 to 10 minutes

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