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    Lawrence Hall of Science
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    In this outdoor biology and math activity, learners estimate the size of a population of organisms too numerous to count. In a process similar to that used by real field biologists, learners count...

    $10 - $20 per group Ages 8 - 14 45 to 60 minutes
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    NEON, Inc.
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    In this activity, learners play a simulation game modeling changes in a plant population (a Pea Patch) caused by patterns of pollination. The game shows learners that variation in flower color can...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    Lawrence Hall of Science
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    In this outdoor game, learners role play populations linked in a food chain. The resource suggests a chain with plant, grasshopper, frog, and hawk, but other food chains can be role-played, for...

    $5 - $10 per group Ages 6 - 14 30 to 45 minutes
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    University of California Museum of Paleontology
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    In this simulation of natural selection, learners use binder clips in three different sizes to represent the diversity of beak sizes in a bird population. They use the "beaks" to collect...

    $5 - $10 per group Ages 11 - 18 45 to 60 minutes
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    Berkeley Natural History Museums
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    In this simulation, learners model two elephant seal populations and how they change over time. Learners start with cards representing a variety of seals. Each generation, some seals survive to...

    free Ages 11 - 18 45 to 60 minutes
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    Lawrence Hall of Science
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    In this two-part outdoor activity, learners conduct a population census of squirting clams on a beach or mudflat, and investigate the clams' natural history. During the Clam Hooping activity,...

    $5 - $10 per group Ages 8 - adult 1 to 2 hours
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    Lawrence Hall of Science
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    In this outdoor game, learners simulate a herd of deer trying to survive in an area called the "home range." Learners explore the concept of "carrying capacity"—what size...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    National Geographic Society
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    Learners explore the relationship between energy consumption, population, and carbon emissions in the countries of the Americas. As a large group, learners analyze maps projected on a screen to...

    $1 - $5 per group Ages 14 - 18 45 to 60 minutes
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    Bridge: Online Ocean Science Education Resource Center
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    In this data analysis activity, learners quantify the abundance and distribution of sea scallops in and adjacent to the Mid-Atlantic closed areas. Learners use data from the Virginia Institute of...

    $1 - $5 per student Ages 14 - 18 1 to 2 hours
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    Twin Cities Public Television
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    In this activity, learners will model how a sea turtle population changes over time, from eggs to adults, using puffed rice. Learners create a chart, calculate population fluctuation for each...

    1 cent - $1 per group Ages 8 - 14 30 to 45 minutes

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