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    The Exploratorium
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    This activity guide includes instructions on how to build a "Shake Table" by mounting an eccentric mass (off center) on the shaft of a small dc motor. Learners use this table to simulate...

    Over $20 per group Ages 11 - 18 45 to 60 minutes
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    The Exploratorium
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    In this geology activity learners build a "squeeze box," which allows them to compress layers of sediment. This is a great way to investigate folding and faulting in the Earth. The...

    $10 - $20 per group Ages 8 - 18 5 to 10 minutes
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    TERC
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    In this activity, learners create models of erosion and floods and learn to recognize both in their environment. Using sand, wax paper, and water, learners observe the processes of erosion and...

    $1 - $5 per group Ages 8 - 18 45 to 60 minutes
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    TERC
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    In this activity, learners use sand and ice cubes to create a model of permafrost and the effects of the ice melting through the surface. Permafrost is an underground layer of soil, rock and water...

    $1 - $5 per group Ages 8 - 18 45 to 60 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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    Lawrence Hall of Science
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    In this outdoor activity, learners construct bird feeders and set them up at to investigate bird behavior for one or two weeks. Multiple feeder designs are suggested. Learners are encouraged to...

    $10 - $20 per group Ages 6 - 14 1 to 4 weeks

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