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    American Chemical Society
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    In this activity (on page 8), learners model how marble statues and buildings are affected by acid rain. Antacid tablets made with calcium carbonate are used to represent marble (also made from...

    1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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    University of Utah
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    In this activity, learners cut, fold, and paste paper representing biomolecules to create a three-dimensional cell membrane with embedded proteins. Learners discuss where these proteins are located...

    1 cent - $1 per group Ages 11 - 18 30 to 45 minutes
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    Lawrence Hall of Science
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    In this engineering/design/arts and crafts activity, learners design and build "platforms" or "bridges" that can hold weight, and test which glue makes the strongest structure....

    $1 - $5 per student Ages 6 - 14 1 to 2 hours
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    University of Nebraska State Museum
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    This activity (on pages 13-18) has learners build a model tree and then figure out how to make their tree stand up by itself. This illustrates how the tall rain forest trees adapt to support a huge...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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    Children's Museum of Indianapolis
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    In this activity, learners explore dinosaur fossils by making cast models of a T. rex. First, learners read about and research how dinosaur fossils form. Next, learners make impressions in clay...

    Over $20 per group Ages 6 - 8 4 to 24 hours
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    BioEd
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    In this activity related to microbes, learners create scale models of microorganisms and compare relative sizes of common bacteria, viruses, fungi and protozoa using metric measures: meters,...

    1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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    Lawrence Hall of Science
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    In this activity, learners construct models of plants that are adapted to living under specific environmental conditions. As they make their models, learners consider what adaptations help plants...

    $10 - $20 per group Ages 6 - 14 45 to 60 minutes
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    Lawrence Hall of Science
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    No glue is needed for learners of any age to become marshmallow architects or engineers. Using marshmallows and water (and maybe edible decorations like peanut butter, pretzels, gumdrops, etc.),...

    1 cent - $1 per student Ages 4 - 14 30 to 45 minutes
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    Lawrence Hall of Science
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    In this outdoor activity, learners use artificial bees and paper models of flowers to find out how bees transfer pollen from one flower to another. Background information discusses bees and other...

    $10 - $20 per group Ages 8 - 14 45 to 60 minutes
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    California Academy of Sciences
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    In this craft activity, learners will explore the structure and purpose of antelope horns by constructing their own headband using toilet paper rolls and yarn. They will also think about the...

    free Ages 4 - 8 30 to 45 minutes

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