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    Twin Cities Public Television
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    This activity (on page 2 of the PDF under SciGirls Activity: Tug O' War) is a full inquiry investigation into tug-of-war physics. Groups of learners will test two tug-of-war strategies. Which...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours
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    Howard Hughes Medical Institute
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    This guided inquiry three-part activity engages learners in thinking about the mechanism of natural selection by encouraging them to formulate questions that can be answered through scientific...

    $10 - $20 per group Ages 11 - 18 2 to 4 hours
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    University of Washington
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    In this activity, learners investigate the sense of hearing and plan and conduct their own experiments. In "CLASS EXPERIMENT," learners discover how we are able to judge where a sound is...

    $10 - $20 per group Ages 11 - 14 2 to 4 hours
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    New York Hall of Science
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    This lesson challenges groups of learners to design and construct a wind generator with the most electrical output. The lesson focuses on the engineering design process and how it is used to...

    $10 - $20 per group Ages 11 - 14 2 to 4 hours
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    DragonflyTV
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    This is an activity (located on page 3 of the PDF) about the mixture of materials in bone and how they affect its strength. Learners will play the part of nanoscientists looking for new ways to...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours
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    Twin Cities Public Television
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    This is an activity (located on page 3 of the PDF under Stained Glass Activity) about nanotechnology making its way into everyday products, such as sunscreen, and how effective these invisible...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours
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    IEEE
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    In this activity, learners explore how the hull shape impacts a ship's performance and stability. Learners design, build, and test their own hull design, predict the performance of the various...

    $10 - $20 per group Ages 11 - 18 2 to 4 hours
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    National Health Museum
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    In this activity, learners are divided into teams. Half the team works as "collectors" and the other half works as "curators." Collectors go outside and search for various...

    $10 - $20 per group Ages 14 - 18 2 to 4 hours
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    Twin Cities Public Television
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    In this environmental engineering activity, learners build windmills using everyday items. The first challenge is to build windmills that spin when placed in front of a fan. The second challenge is...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours
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    The Exploratorium
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    In this activity, learners build large-scale structures and cantilevers in a series of "building out" challenges with garden poles and tape. In doing so, learners will experience many of...

    $10 - $20 per group Ages 6 - 14 2 to 4 hours