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    The Exploratorium
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    In this edible experiment, learners pour "Magic Shell" chocolate into a glass of cold water. They'll observe as pillow shaped structures form, which resemble lavas on the sea floor.

    $1 - $5 per student Ages 8 - 18 5 to 10 minutes
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    Colorado State University
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    In this activity, learners simulate the behavior of the atmosphere. Learners working in groups of four will represent "cells" of the model (Earth, lower atmosphere, upper atmosphere, and...

    free Ages 8 - 14 10 to 30 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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    Children's Museum Of Houston
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    In this activity, learners explore why humans sweat. Learners compare the effects of heat on a balloon filled with air and a balloon filled water. This simulation demonstrates how water in sweat...

    1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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    PhET
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    In this online activity, learners adjust mountain snowfall and temperature to see how glaciers grow and shrink. They will use scientific tools to measure thickness, velocity and glacial budget....

    free Ages 8 - adult 10 to 30 minutes
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    American Museum of Natural History
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    In this experiment, learners work in pairs to create two gloves -- one that contains a layer of shortening (blubber) inside, and one that doesn't. By putting both glove-covered hands in a...

    $5 - $10 per student Ages 8 - 14 10 to 30 minutes
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    4-H
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    In this experiment, learners use a blow dryer and water bottle to observe and record changes in air pressure caused by changes in temperature. Educators can use this activity to explain how changes...

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