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    Pratt School of Engineering, Duke University
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    Learners work in groups to design and build a tower out of balsa wood. As a motivator, they can compete to build a tower with the highest strength-to-weight ratio. Learners draw structurally sound...

    $5 - $10 per group Ages 11 - 14 1 to 2 hours
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    Wellcome Trust Sanger Institute
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    In this activity, learners create an origami model of DNA, demonstrating its double helix structure. Two templates are available as PDFs: a standard template with the base pairs already colored or...

    1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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    WGBH
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    In this design challenge activity, learners build a tower that can support a tennis ball at least 18 inches off the ground while withstanding the wind from a fan. Learners will build a sturdy frame...

    1 cent - $1 per student Ages 8 - 14 30 to 45 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 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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    University of Southern Mississippi
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    In this activity, learners use Teflon (PTFE) tape to write secret messages. Learners may be familiar with Teflon-coated pans, but they probably do not know that Teflon is also made into tape that...

    $1 - $5 per student Ages 6 - 18 10 to 30 minutes
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    New York Hall of Science
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    If you have 3-foot dowels and rubber bands, you can can started on this fun and open design challenge. You can make structures big and small: make it so you can fit your parent into it! You can do...

    1 cent - $1 per student Ages 8 - adult 10 to 30 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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    Center for Engineering Educational Outreach, Tufts University
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    Learners work with plastic sheeting, masking tape, and string to design the perfect material for plastic chair webbing, and then construct their webbing. Since the best webbing would resist...

    $10 - $20 per group Ages 11 - 14 1 to 2 hours
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    University of Wisconsin-Madison
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    In this activity (pages 42-49), learners discover the methods and challenges of building nanoscale structures with macroscale equipment. This activity presents a sampling of the tools, materials,...

    $5 - $10 per group Ages 14 - adult 45 to 60 minutes

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