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    Community Science Workshop Network
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    In this activity, learners extract DNA from a strawberry and discover that DNA is in the food they eat. Learners use simple materials to break open the cells of a strawberry and see DNA with their...

    $1 - $5 per student Ages 11 - 14 45 to 60 minutes
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    APSnet
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    In this laboratory activity, learners use a simple procedure to bait oomycetes from water and/ or soil and then examine these fungus-like organisms with the microscope to see how they look. They...

    $1 - $5 per group Ages 11 - 18 1 to 7 days
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    APSnet
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    This lesson introduces learners to the world of nematodes (roundworms). Learners construct Baermann funnels to extract nematodes from soil and learn to differentiate stylet-bearing nematodes (most...

    $1 - $5 per group Ages 14 - 18 1 to 7 days
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    NSBRI
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    In this activity about daily rhythms (on page 17 of the PDF), learners will explore circadian patterns in humans, animals and plants. They will observe that some behaviors and functions of living...

    $1 - $5 per group Ages 8 - 14 1 to 7 days
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    NSBRI
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    In this activity (on page 12 of the PDF), learners make a sundial (shadow clock) appropriate for their geographic location in the northern hemisphere and use it to tell time. This is an...

    $1 - $5 per group Ages 8 - 14 1 to 7 days
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    National Health Museum
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    In this activity, learners will explore how the human brain interprets environmental stimuli. Learners use two point discrimination on the skin to determine the relative number of nerve endings...

    $1 - $5 per group Ages 14 - 18 45 to 60 minutes
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    APSnet
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    In this laboratory exercise, learners will discover how many different plant hosts they can find that are infected by the same genus of a powdery mildew fungus, or how many different genera of...

    $1 - $5 per group Ages 11 - 18 45 to 60 minutes
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    Twin Cities Public Television
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    In this activity, learners build penetrometers to test leaf toughness. Biologists measure leaf toughness to study the feeding preferences of insects and bugs.

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    BioEd
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    In this activity related to microbes, learners make slides of cells from an onion skin and Elodea (American or Canadian waterweed) to observe under a microscope. With these examples, learners will...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    Lawrence Hall of Science
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    Just like birds, some dinosaurs had air-filled (pneumatic) bones, which made the dinosaurs' skeletons lighter. In this activity, learners bake chicken or turkey bones and then rub the ends off...

    $1 - $5 Ages 8 - 18 1 to 7 days

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