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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners build particulate matter collectors--devices that collect samples of visible particulates present in polluted air. They place the collectors in various test sites and observe them over a...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    The University of Texas McDonald Observatory
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    In this activity, learners use the Sun's energy to cook marshmallows. Learners construct the solar oven out of simple everyday materials. They experiment to see how the color of the...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    American Association for the Advancement of Science
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    Learners build a simple solar oven from a shoebox, black construction paper, and aluminum foil. Over the course of a few hours, the oven heats up water enough to brew tea. When learners set up a...

    $1 - $5 per student Ages 8 - 11 45 to 60 minutes
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    Science Museum of Minnesota
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    Learn about friction and kinetic energy with this cool spinning toy. The designer of this activity, an artist named Vollis Simpson, made his whirligig from old beer cans, but we can make ours out...

    $1 - $5 per student Ages 6 - 11 45 to 60 minutes
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    The Exploratorium
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    Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!...

    $1 - $5 per student Ages 8 - 18 45 to 60 minutes
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    NASA
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    In this sunny day, outdoor activity, learners observe changes in shadows over time. The activity also helps to develop a sense of the Earth's motion. Since this activity requires some passage...

    $1 - $5 per group Ages 4 - 18 45 to 60 minutes
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    NASA
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    In this three-part activity, learners use food to determine the effects of wind, sandblasting and water on regolith (dust) formation and deposition on Earth. Then, learners simulate regolith...

    $1 - $5 per student Ages 8 - 18 45 to 60 minutes
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    Center for Engineering Educational Outreach, Tufts University
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    Working in teams of four, learners build tetrahedral kites following specific instructions and using specific materials. They use the basic processes of manufacturing systems--cutting, shaping,...

    $1 - $5 per group Ages 11 - 14 45 to 60 minutes
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    The Exploratorium
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    In this activity, learners make a scale model of the Solar System and learn the real definition of "space." Learners use the online calculator to create an appropriate scale to use as a...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    Science Museum of Minnesota
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    In this activity, learners make acid/base indicator paper, place the indicator paper on an anthill, disturb a bunch of ants, and then observe what happens! Some stinging insects spray formic acid...

    $1 - $5 per group Ages 6 - 11 45 to 60 minutes

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