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    Lunar and Planetary Institute
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    In this activity, learners consider the water features they might enjoy at a community park--a pond, brook, water playground (or "sprayground"), or pool--and what happens to the water...

    Over $20 per group Ages 4 - 14 10 to 30 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners work in teams to design and build solar water heating devices that mimic those used in residences to capture energy in the form of solar radiation and convert it to thermal energy. This...

    $10 - $20 per group Ages 14 - 18 1 to 7 days
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    In this activity, learners investigate passive solar building design with a focus solely on heating. They learn how insulation, window placement, thermal mass, surface colors, and site orientation...

    $5 - $10 per group Ages 14 - 18 4 to 24 hours
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    National Health Museum
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    In this activity, learners simulate nature's water filtration system by devising a system that will filter out both visible and invisible pollutants from water. Each group is asked to design a...

    $5 - $10 per group Ages 8 - 18 1 to 2 hours
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    WGBH
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    In this engineering activity, learners will get acquainted with the basics of wind energy and power production by fabricating and testing various blade designs for table-top windmills constructed...

    Over $20 per group Ages 11 - 14 2 to 4 hours
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    Twin Cities Public Television
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    In this ocean engineering activity, learners explore buoyancy and water displacement. Then, learners design models of deep sea divers that are neutrally buoyant.

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    WGBH
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    In this engineering activity (page 3 of PDF), young learners investigate how a pole can be made stable by “planting” its base in the ground or adding supports to the base. First, learners observe...

    $1 - $5 per group Ages 4 - 8 30 to 45 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    In this design-based activity, learners explore environments, ecosystems, energy flow and organism interactions by creating a model biodome. Learners become engineers who create model ecosystems....

    $10 - $20 per group Ages 11 - 14 4 to 24 hours
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    Museum of Science and Industry, Chicago
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    Learners build a wind turbine and test it to see how much energy is created. Learners can build a variety of wind blades, test a variety of wind speeds and see what effect these have on the energy...

    Over $20 per student Ages 11 - 18 45 to 60 minutes
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    Twin Cities Public Television
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    This is an activity (located on page 3 of the PDF) about the use of reduction agents to decontaminate ground water. Learners will conduct a reduction-oxidation (redox) reaction in which vitamin C...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours

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The Nature of Technology Subject