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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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    This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset. Learners observe as a special "sunset egg" and a white light reveal...

    $1 - $5 per student Ages 8 - 14 5 to 10 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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    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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    Colorado State University
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    In this activity, learners examine raindrop bottles (prepared ahead of time) to observe in slow motion the behavior of falling droplets and explore concepts such as drag and terminal velocity. As...

    1 cent - $1 per student Ages 8 - 14 5 to 10 minutes

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