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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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    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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    Astronomical Society of the Pacific
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    This fun hands-on astronomy activity lets learners use star maps (included) to find constellations and to identify stars with extrasolar planets (Northern Hemisphere only, naked eye). Use this...

    $1 - $5 per group Ages 8 - adult 45 to 60 minutes
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    Community Science Workshop Network
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    In this activity, learners construct speedy vehicles made out of paper plates and powered by twisted rubber bands. This toy is an excellent demonstration of potential and kinetic energy and how...

    $1 - $5 per student Ages 6 - 18 45 to 60 minutes
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    Colorado State University
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    In this activity, learners explore conservation of energy by experimenting with a solar cell light device. Learners will set the solar cell in the sun for varying times to charge the battery and...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes

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