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    COSI
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    In this demonstration about force and motion, learners will explore the forces that affect a pendulum A simple model pendulum comprised of a ball and string demonstrates how pendulums work as well...

    $1 - $5 per student Ages 4 - 11 5 to 10 minutes
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    COSI
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    In this activity about gravity (page 6 of the PDF), learners will come to understand how all objects will fall at the same rate, but that air will slow things down. This is a simple activity (it...

    1 cent - $1 per student Ages 4 - 8 5 to 10 minutes
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    WGBH
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    Students design and build their own parachutes in this hands-on engineering project. Using the engineering design process, kids explore the concepts of gravity and air resistance as they test how...

    $1 - $5 per group Ages 6 - 11 45 to 60 minutes