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    IEEE
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    In this activity, learners explore how engineers have met the challenge of keeping foods, liquids, and other items cool. Learners learn about heat transfer, vacuums, and insulation and design a...

    $10 - $20 per group Ages 8 - 18 1 to 2 hours
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    NASA
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    In this activity, learners discover that one way to cool an object in the presence of a heat source is to increase the distance from it or change the angle at which it is faced. Learners perform an...

    1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    How does a green roof, or roof covered by plants, affect the temperature of the inside and outside of a building? Learners design and build houses to find out the answer. In doing so, they need to...

    $1 - $5 per group Ages 11 - 14 1 to 2 hours