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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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    Biotechnology and Biological Sciences Research Council
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    In this activity (p.5-6 of PDF), learners investigate natural selection. Learners discover that natural selection, which takes place over decades, can lead to altered populations within a species....

    $5 - $10 per group Ages 8 - 11 10 to 30 minutes
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    NOAA
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    In this activity (on page 7), learners explore the meaning of a "carbon sink." Using simple props, learners and/or an educator demonstrate how plants act as carbon sinks and how...

    free Ages 8 - 14 45 to 60 minutes

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    • Oregon Museum of Science and Industry (remove)
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