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    Centers for Ocean Sciences Education Excellence
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    In this game, learners match descriptions of marine debris (shoes, batteries, paper towels, etc.) to images of these items. This activity can lead to a discussion about the effects of marine debris...

    1 cent - $1 per group Ages 8 - adult 10 to 30 minutes
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    Twin Cities Public Television
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    This activity (page 2 of the PDF) is a full inquiry investigation into decomposition. Groups of learners will carefully observe and record the appearance of items, such as an apple, that can...

    $10 - $20 per group Ages 8 - 14 1 to 4 weeks
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    Lawrence Hall of Science
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    In this outdoor activity, learners make their own organic-rich soil. Depending on where this activity is done, learners will probably discover that their local soil is low in organic matter. Then...

    $10 - $20 per group Ages 8 - 18 45 to 60 minutes
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    Smithsonian Center for Education and Museum Studies
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    In this activity (located on pages 9-14 of PDF), learners visit a cemetery to examine the distinguishing characteristics of rock weathering. After researching stone weathering and acid rain,...

    free Ages 8 - 14 1 to 7 days
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    Pratt School of Engineering, Duke University
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    Learners design their own experiment to determine conditions that either help or hinder the decomposition of carrots by soil microbes. They place carrots in plastic bags filled with soil (with or...

    $10 - $20 per group Ages 11 - 14 1 to 4 weeks
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    Lawrence Hall of Science
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    In this outdoor activity, learners cut through and investigate rotten logs and then make log-profile puzzles for each other. Learners cut through the limb to expose a vertical profile, study the...

    Over $20 per group Ages 8 - adult 45 to 60 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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    The Exploratorium
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    This activity shows you how to make a mold terrarium using a jar and leftover food. Learners explore mold, an "icky but necessary" thing that helps living matter rot, return to the soil,...

    1 cent - $1 per group Ages 8 - 14 1 to 4 weeks
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    Sciencenter
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    In this chemistry challenge, learners identify which plants have the enzyme "catalase" that breaks hydrogen peroxide into water and oxygen. Multiple fruits and vegetables, both raw and...

    $5 - $10 per group Ages 4 - 14 10 to 30 minutes
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    University of Wisconsin-Madison
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    In this activity, learners turn empty 2-liter bottles into a see-through compost container. Through the sides of the bottle, learners make weekly observations of decomposition over the course of...

    $1 - $5 per student Ages 4 - 14 1 to 12 months

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