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    Twin Cities Public Television
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    In this engineering activity, learners design parachutes to give toy figures safe landings. This activity is great for practicing an important STEM skill--changing only one variable at a time.

    $5 - $10 per group Ages 8 - 14 30 to 45 minutes
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    NISE Network
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    In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup. They learn that size can affect the way materials like...

    $5 - $10 per group Ages 4 - adult 5 to 10 minutes
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    Techbridge
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    In this activity (located on pages 23-24 of the PDF), learners are introduced to structural engineering and encouraged to practice goal-oriented building. Learners work to build the strongest dome...

    $1 - $5 per group Ages 8 - 18 30 to 45 minutes
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    COSI
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    In this activity about magnetism (page 11 of the pdf), learners will experiment with magnets to explore how opposite poles attract and similar poles repel in magnetism. Then, learners figure out...

    $1 - $5 per group Ages 6 - 11 30 to 45 minutes
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    The Exploratorium
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    In this activity, learners create a tornado in a bottle to observe a spiraling, funnel-shaped vortex. A simple connector device allows water to drain from a 2-liter bottle into a second bottle....

    $1 - $5 per student Ages 4 - 14 10 to 30 minutes
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    Institute of Physics
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    In this physics demonstration, learners are challenged to insert a straw the furthest into a potato. After learners explore different techniques, the demonstrator can show them how to hold the...

    $1 - $5 per group Ages 4 - adult 5 to 10 minutes
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    Institute of Physics
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    This simple, yet surprising physics demonstration challenges preconceptions about forces, and demonstrates the strength of atmospheric pressure. Learners will observe as the demonstrator attempts...

    free Ages 4 - adult Under 5 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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    NSBRI
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    In this activity about humans and space travel (page 1 of PDF), learners compare and contrast the behavior of a water-filled plastic bag, both outside and inside of a container of water. This...

    1 cent - $1 per group Ages 6 - 11 45 to 60 minutes
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    Lawrence Hall of Science
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    In this outdoor activity and bingo-like game, learners explore why and how seeds spread far from the plants that produce them. To understand natural adaptions that let seeds and fruit be dispersed,...

    $1 - $5 per group Ages 8 - 14 30 to 45 minutes

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