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    Lunar and Planetary Institute
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    In this activity, learners consider the water features they might enjoy at a community park--a pond, brook, water playground (or "sprayground"), or pool--and what happens to the water...

    Over $20 per group Ages 4 - 14 10 to 30 minutes
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    IEEE
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    In this activity, learners explore how environmental engineers might approach solving the problem of an oil spill. Learners work in teams of "engineers" to develop a system to contain and...

    Over $20 per group Ages 8 - 18 1 to 2 hours
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    Sciencenter
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    Learners will build and experiment with their own windmills made from simple household materials. The program closes with a discussion on energy conservation and how our choices and actions can add...

    $10 - $20 per group Ages 6 - 14 30 to 45 minutes
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    Twin Cities Public Television
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    In this activity, learners identify different plastics in a mystery bag. Learners discover that plastics are classified #1 through #7. Learners then categorize plastics based on characteristics...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    Twin Cities Public Television
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    This is an activity (located on page 3 of the PDF) about the use of reduction agents to decontaminate ground water. Learners will conduct a reduction-oxidation (redox) reaction in which vitamin C...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours
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    Princeton University
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    This game introduces learners to the scale of the greenhouse gas problem, plus technologies that already exist to dramatically reduce our carbon emissions and prevent climate change. Players pick...

    1 cent - $1 per group Ages 14 - adult 2 to 4 hours
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    EPA
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    In this activity, learners investigate how increased carbon dioxide (CO2) emissions from the burning of fossil fuels is changing the acidity (pH) of the ocean and affecting coral reefs and other...

    $5 - $10 per group Ages 11 - 14 45 to 60 minutes
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    University of Nebraska State Museum
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    In this activity (on pages 18-29) learners explore the impact of the March 24, 1989 oil spill in Alaska caused by the Exxon Valdez tanker. First they use a map to track the movement of the spill...

    $5 - $10 per group Ages 8 - 14 1 to 2 hours
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    Twin Cities Public Television
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    This activity (on page 2 of the PDF) is a full inquiry investigation into aerial imagery. Learners will use the internet to gather free aerial imagery of nearby points of interest (or use laminated...

    free Ages 8 - 14 45 to 60 minutes
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    NOAA
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    In this game, learners walk through an imaginary Carbon Cycle and explore the ways in which carbon is stored in reservoirs and the processes that transport the carbon atom from one location to...

    free Ages 11 - 18 45 to 60 minutes

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