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    Lawrence Hall of Science
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    In this outdoor activity, learners release a portion of a lawn from human control—no mowing, no watering, no weeding, no pest control—and then investigate the changes that result over several weeks...

    Over $20 per group Ages 6 - 14 1 to 12 months
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    Lawrence Hall of Science
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    Dig a hole, line it, fill it with fresh water, and you have a water hole: a good place to study colonization. In this outdoor activity, learners create a controlled experiment to study the effects...

    $5 - $10 per group Ages 8 - 18 1 to 12 months
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    Lawrence Hall of Science
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    In this outdoor activity/field trip, learners investigate organisms that live along the ocean's rocky coast. Learners add bare rocks to an intertidal zone, and over the course of 6-8 weeks...

    $10 - $20 per group Ages 8 - adult 1 to 12 months
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    NOAA
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    In this activity, learners explore how the area of Arctic sea ice has changed over recent years. First, learners graph the area of Arctic sea ice over time from 1979 to 2007. Then, learners use...

    free Ages 11 - 18 45 to 60 minutes