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    The Exploratorium
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    In this demonstration, learners watch as a device drops a ball into a cup without touching the ball or cup, even though the ball and cup are virtually side-by-side. Specifically, this device...

    $10 - $20 per group Ages 11 - 18 5 to 10 minutes
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    The Exploratorium
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    In this demonstration/activity, learners observe as a regular size marshmallow is blown through a tube made from a manila file folder. The result is spectacular, and the process provides a great...

    $1 - $5 per group Ages 8 - 18 10 to 30 minutes
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    The Exploratorium
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    In this physics activity, learners assemble and/or investigate a pendulum "snake." Several large steel hex-nuts are suspended on strings of successively increasing length to form a series...

    $10 - $20 per group Ages 8 - 18
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    NASA
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    In this activity, learners work in teams build and launch rubberband-powered foam rockets. Through a controlled investigation, learners will explore rocket stability and the trajectory relationship...

    $10 - $20 per group Ages 8 - 18 1 to 2 hours
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    WGBH
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    In this design challenge activity, learners modify a cup so it can carry a marble down a zip line and also drop it onto a target. Learners are encouraged to brainstorm answers to design questions,...

    $1 - $5 per student Ages 8 - 18 45 to 60 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners build simple catapults and use them to launch cotton balls. Learners can see Newton's second law of motion in effect; pulling the catapult arm back further creates more force and thus...

    $1 - $5 per group Ages 11 - 18 45 to 60 minutes
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    The Exploratorium
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    In this activity, learners use a pencil, magnets, and mat board to illustrate Newton's Second Law. Learners will observe as gravitational and magnetic forces act on two falling objects to...

    1 cent - $1 per student Ages 11 - 18 30 to 45 minutes
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    The Exploratorium
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    Listen to the beat of gravity. By taking two strings with weights tied to them at different, yet uniform intervals, you can hear the uniformity (and rhythm) of gravity's accelerating pull.

    1 cent - $1 per student Ages 6 - 14 Under 5 minutes
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    COSI
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    In this physics activity (page 5 of the PDF), learners will witness the effects of free fall by observing falling water, and will gain a better understanding of the concept of weightlessness....

    1 cent - $1 per student Ages 11 - 18 10 to 30 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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