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    COSI
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    In this biology experiment, learners plant soybean seeds in plaster of Paris, witnessing firsthand the mighty power and ability of plants to grow in adverse conditions. This is also an excellent...

    1 cent - $1 per student Ages 6 - 11 1 to 4 weeks
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    Oregon Museum of Science and Industry
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    In this activity, learners combine two substances (plaster of Paris and water) to make a cast of an object's imprint in clay. Use this activity to introduce learners to how scientists and...

    $1 - $5 per student Ages 6 - 14 30 to 45 minutes
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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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    American Chemical Society
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    In this activity on page 7 of the PDF, learners experiment with the interesting designs that can be made by painting on plaster. Learners discover the chemistry behind fresco, an art technique made...

    $10 - $20 per student Ages 6 - 14 10 to 30 minutes