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    Twin Cities Public Television
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    This activity (page 2 of the PDF under SciGirls Activity: Bogs) is a full inquiry investigation into decomposition. Groups of learners will carefully observe and record the appearance of items,...

    $10 - $20 per group Ages 8 - 14 1 to 4 weeks
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    Twin Cities Public Television
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    In this activity, learners will test cups full of potting soil, sand, and sphagnum moss to see which earth material is able to soak up the most water. Using a scale and a simple calculation,...

    $5 - $10 per group Ages 8 - 14 1 to 2 hours