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    WGBH
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    In this engineering activity, challenge learners to construct a paper bridge that can support 100 pennies. Learners discover how they can make a weak material like paper strong enough to support a...

    1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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    COSI
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    In this engineering activity, learners investigate the differences between the strength of bridges made from flat and round building materials. They construct simple bridges out of linguine, which...

    $1 - $5 per group Ages 8 - 14 30 to 45 minutes
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    WGBH
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    In this simple activity, learners discover how a mere piece of paper can be used to hold up the weight of a heavy book. Learners are encouraged to modify their materials, using the steps of the...

    1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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    WGBH
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    In this design challenge activity, learners invent an emergency shelter that can fit a person and is sturdy and quick to build. Learners think about a familiar shape in new ways, brainstorm shelter...

    $10 - $20 per group Ages 8 - 14 30 to 45 minutes
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    Center for Engineering Educational Outreach, Tufts University
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    Each group of learners uses everyday materials, such as paper, toothpicks, and tape to design and construct a structure intended to support the weight of a cinder block for 30 seconds. Learners...

    $1 - $5 per group Ages 11 - 14 1 to 2 hours
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    Twin Cities Public Television
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    In this quick activity (page 1 of the PDF), learners will test how many pennies a flat paper index card bridging the gap between two stacks of books is able to support. Then, learners alter the...

    1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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    WGBH
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    In this engineering activity, challenge learners to build a tower out of 10 sheets of newspaper and 3 feet of masking tape, which can hold a golf ball balancing at the top. Learners explore ways to...

    1 cent - $1 per group Ages 6 - 11 10 to 30 minutes
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    4-H
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    In this fun group activity involving music and movement, learners are introduced to the idea that many insects walk by using their legs to create "alternating triangles." Learners sing...

    $10 - $20 per group Ages 8 - 11 45 to 60 minutes