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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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    Sciencenter
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    In this two part activity, learners become draft detectives by constructing their own draft catchers to detect drafts around windows or doors. Next, they make draft stoppers to reduce air flow and...

    $5 - $10 per student Ages 4 - 14 10 to 30 minutes
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    WNET
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    In this fun hands-on activity, learners use simple materials to investigate evaporation. How can the evaporation of water on a hot day be used to cool an object? Find out the experimental way! The...

    $1 - $5 per group Ages 8 - 11 10 to 30 minutes
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    Museum of Science, Boston
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    In this online game, learners are challenged to design a birdhouse that will keep a bird comfortable throughout a day. Learners choose a bird species and learn about its needs. Then, they design a...

    free Ages 6 - 14 10 to 30 minutes
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    Museum of Science, Boston
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    In this activity, learners are challenged to design, build and test a birdhouse that will stay cool in the sun. Learners investigate concepts such as energy efficiency, properties of light, and...

    Over $20 per group Ages 8 - 18 30 to 45 minutes
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    Camp in a Can
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    In this activity (found on page 7 of the PDF), learners make a device that simulates the sound of a bee's wings. A rubber band is wrapped around a craft stick and two corks, and a index card...

    1 cent - $1 per student Ages 8 - 14 10 to 30 minutes