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    In this activity, learners explore the structure of plant leaves. Learners find out what happens when they coat either the top or bottom sides of leaves with petroleum jelly. Use this activity to...

    $5 - $10 per group Ages 6 - 14 1 to 7 days
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    Twin Cities Public Television
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    This activity (on page 3 of the PDF under GPS: Cactus Activity) is a full inquiry investigation into how some desert birds keep their cool. Learners will make four model Saguaro nests out of...

    $10 - $20 per group Ages 8 - 14 1 to 7 days
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    In this activity (page 2 of PDF under GPS: Garbology Activity), learners will prepare sheets of homemade recycled paper from several different source pulps. Once dry, each sample will be drawn on...

    $10 - $20 per group Ages 8 - 14 1 to 7 days
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    This is an activity (located on page 3 of the PDF under Nanosilver Activity) about diffusion of small molecules across cell membranes. Learners will use gelatin to represent a cell and dye to...

    $10 - $20 per group Ages 8 - 14 1 to 7 days

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