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    National Health Museum
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    In this activity, learners simulate nature's water filtration system by devising a system that will filter out both visible and invisible pollutants from water. Each group is asked to design a...

    $5 - $10 per group Ages 8 - 18 1 to 2 hours
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    Twin Cities Public Television
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    In this activity, learners explore the difference between compact fluorescent light (CFL) bulbs and traditional incandescent bulbs. Learners examine which light bulbs are more energy efficient by...

    $5 - $10 per group Ages 8 - 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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    4-H
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    In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat. An extension included in this activity guide suggests learners next design and...

    $5 - $10 per group Ages 8 - 14 10 to 30 minutes
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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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    NISE Network
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    This is a demonstration about how nature inspires nanotechnology. It is easily adapted into a hands-on activity for an individual or groups. Learners discover that lotus leaves are self cleaning...

    $5 - $10 per group Ages 6 - adult 10 to 30 minutes
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    California Academy of Sciences
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    In this activity, learners practice the steps involved in a scientific investigation while learning why ice formations on land (not those on water) will cause a rise in sea level upon melting. This...

    $5 - $10 per group Ages 8 - 14 2 to 4 hours
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    BioEd
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    In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients. Learners investigate, on a small scale, the changes that...

    $5 - $10 per group Ages 8 - 14 1 to 7 days
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    Railroad Commission of Texas
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    In this activity about global climate change, learners will conduct an experiment and collect data to compare the amount of carbon dioxide (CO2) in four different sources of gases. Learners will...

    $5 - $10 per student Ages 11 - 18 45 to 60 minutes
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    American Chemical Society
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    In this activity on page 12 of the PDF (Rethinking the 3 R’s: It’s Easy to be Green), learners examine how recyclable materials are separated by various properties at recycling centers. Learners...

    $5 - $10 per student Ages 8 - 14 45 to 60 minutes

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