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    Biotechnology and Biological Sciences Research Council
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    In this activity (p.25 of PDF), learners investigate spores. Mushrooms produce millions of spores which are equivalent to the seeds of plants but without the massive food reserves. Spores are so...

    1 cent - $1 per student Ages 11 - 14 2 to 4 hours
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    California Academy of Sciences
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    In this activity, learners visualize the differences in water density and relate this to the potential consequences of increased glacial melting. This activity can be conducted as a demonstration...

    $5 - $10 per group Ages 8 - 14 2 to 4 hours
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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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    Twin Cities Public Television
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    In this environmental engineering activity, learners build windmills using everyday items. The first challenge is to build windmills that spin when placed in front of a fan. The second challenge is...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours
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    Biotechnology and Biological Sciences Research Council
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    In this activity (p.23 of PDF), learners dye wool with fungi. Learners discover that natural chemicals in fungi can dye wool different colors. Note: Natural dyeing normally requires a color...

    $10 - $20 per group Ages 11 - 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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    GreenLearning Canada
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    Learners follow directions to construct a solar oven that really cooks! The solar oven uses aluminum foil to reflect sunlight into a cooking chamber, which is painted black. The black surface...

    $10 - $20 per group Ages 11 - 18 2 to 4 hours
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    The University of Texas McDonald Observatory
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    In this activity, learners make an equatorial sundial, which is simple to construct and teaches fundamental astronomical concepts. Learners use the provided template and a straw to build the...

    1 cent - $1 per group Ages 11 - 18 2 to 4 hours
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    Biotechnology and Biological Sciences Research Council
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    In this activity, learners make their own bug boxes and test the habitat preference of selected "minibeasts" (bugs). Activity is broken down into two sessions because the boxes are fixed...

    $5 - $10 per student Ages 6 - 14 2 to 4 hours
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    Twin Cities Public Television
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    In this activity, learners put on their naturalist hats and explore the world around them. This activity challenges learners to take a close look at local habitats, determine if area animals have...

    free Ages 8 - 14 2 to 4 hours

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