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    Colorado State University
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    In this demonstration/experiment, learners discover that different colors and materials (metals, fabrics, paints) radiate different amounts of energy and therefore, cool at different rates....

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    Colorado State University
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    In this demonstration, learners can observe a number of small convection cells generated from a mixture of aluminum powder and silicon oil on a hot plate. This demonstration helps learners...

    $5 - $10 per student Ages 8 - 14 5 to 10 minutes
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    Colorado State University
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    In this activity, learners simulate the energy transfer between the earth and space by using the light from a desk lamp to warm up a world map placemat. The placemat will warm up, so it will emit...

    $1 - $5 per student Ages 8 - 14 10 to 30 minutes
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    Colorado State University
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    In this activity, learners explore how air warms when it condenses water vapor or makes clouds. To see this in action, learners use their hands and breath to examine how evaporation cools things...

    1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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    Colorado State University
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    In this activity, learners explore clouds and how they form. Learners compare the cloud formation in two bottles, one with air freshener and one without, to examine the importance of condensation...

    $1 - $5 per group Ages 8 - 18 5 to 10 minutes
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    Colorado State University
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    This demonstration/activity helps learners understand why higher elevations are not always warm simply because "hot air rises." Learners use a tire pump to increase the pressure and...

    $1 - $5 per group Ages 8 - 18 10 to 30 minutes
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    Colorado State University
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    In this activity, learners use cheap, thin plastic garbage bags to quickly build a solar hot air balloon. In doing so, learners will explore why hot air rises. Learners can use a hair dryer to...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    Colorado State University
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    The demonstration/experiment provides quick proof that air has mass. Learners measure the mass of a 2-liter bottle attached with special "Fizzkeeper" cap before and after extra air...

    $1 - $5 per group Ages 8 - 14 5 to 10 minutes

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