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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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    The Exploratorium
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    In this physics activity, learners conduct two experiments to explore free-falling. In the first experiment, water-filled plastic bottles with holes in them spurt water under normal conditions, but...

    $5 - $10 per group Ages 11 - 18 45 to 60 minutes
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    Twin Cities Public Television
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    This activity (page 2 of the PDF under SciGirls Activity: Microgravity) is a full inquiry investigation into how ordinary things behave in microgravity, similar to what astronauts experience....

    Over $20 per group Ages 8 - 14 2 to 4 hours
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    Twin Cities Public Television
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    In this quick activity (page 1 of PDF under SciGirls Activity: Hockey), learners will use a simple physics of motion and gravity demonstration to test their predicting skills. Learners predict...

    1 cent - $1 per group Ages 8 - 14 10 to 30 minutes