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    Lunar and Planetary Institute
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    In this activity, learners observe the water cycle in action! Water vapor in a tumbler condenses on chilled aluminum foil — producing the liquid form of water familiar to us as rain and dew....

    1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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    American Chemical Society
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    In this activity on page 14 of the PDF, learners turn plain pieces of recycled plastic into shrunken works of art. Explore the unique properties of plastic, including what happens when certain...

    1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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    NOAA
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    In this activity, learners perform experiments to examine whether or not trash can float, blow around, or wash away. Then learners analyze the effects of these characteristics on marine debris in...

    1 cent - $1 per group Ages 6 - 14 30 to 45 minutes
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    University of Alaska Fairbanks
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    In this activity related to climate change, learners examine albedo and the ice albedo feedback effect as it relates to snow, ice, and the likely results of reduced snow and ice cover on global...

    1 cent - $1 per group Ages 14 - 18 45 to 60 minutes
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    NOAA
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    In this activity, learners observe the hydrologic cycle in action as water evaporates and condenses to form rain right before their eyes. Learners perform a simple experiment to precipitate "...

    1 cent - $1 per group Ages 4 - 14 10 to 30 minutes
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    NOAA
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    In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs. Use this activity to begin discussions on...

    1 cent - $1 per group Ages 8 - 18 30 to 45 minutes
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    CSIRO
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    In this activity, learners use a flashlight, a glass of water, and some milk to examine why the sky is blue and sunsets are red. Learners will discover that the sky appears a different color...

    1 cent - $1 per group Ages 11 - 18 5 to 10 minutes
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    NOAA
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    In this activity, learners discover if carbon dioxide has an effect on temperature. Learners compare the temperatures of two bottles filled with water, one with seltzer tablets and one without,...

    1 cent - $1 per group Ages 6 - 14 1 to 2 hours
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    NOAA
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    In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere. Learners conduct the experiment by placing a large plastic bag over a living limb...

    1 cent - $1 per group Ages 6 - 14 2 to 4 hours
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    New England Aquarium
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    In this activity, learners explore how salt water freezes in comparison to fresh water. Use this experiment to consider how pond animals survive cold winters in comparison to animals that live in...

    1 cent - $1 per group Ages 6 - 14 1 to 2 hours

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