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    Twin Cities Public Television
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    In this online Flash game, learners experiment with an ecosystem, trying to find a balance between weebits, their plant food source, and the right climate to keep the plants growing. Weebits are...

    free Ages 6 - 14 5 to 10 minutes
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    NOAA
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    In this activity, groups of learners work together to create edible models of chemicals involved in autotrophic nutrition. Learners use candy to represent elements involved in the chemical...

    $5 - $10 per group Ages 14 - 18 1 to 2 hours
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    The Oceanography Society
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    The objective of this inquiry-based lesson is for learners to gain an understanding of how increasing ocean acidity can affect the calcification of marine organisms. During this activity, learners:...

    Over $20 per group Ages 14 - adult 2 to 4 hours
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    Oregon Museum of Science and Industry
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    This activity is on page 10 (continued on the right side of page 11) of the pdf, part of the Forest Animals Discovery Box. In this game, learners act out the food web. They are introduced to the...

    free Ages 4 - 6 10 to 30 minutes
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    Centers for Ocean Sciences Education Excellence
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    This activity provides a hands-on experience with a scale model, a relatively high viscosity fluid, and feeding behaviors. Learners attempt to capture "food" (a lentil) with a feeding...

    $5 - $10 per group Ages 8 - 18 30 to 45 minutes
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    Biotechnology and Biological Sciences Research Council
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    In this activity, learners investigate feeding relationships. Learners complete a food web and then make a mobile to represent a food chain. Use this activity to talk about predator/prey...

    1 cent - $1 per student Ages 6 - 14 45 to 60 minutes
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    American Museum of Natural History
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    In this game, learners each represent a different organism in an environment. They build a web during the activity, and discover how all the players in an ecosystem depend on each other. As they...

    $1 - $5 per group Ages 8 - 14 30 to 45 minutes
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    COSI
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    In this activity (page 5 of the PDF), learners will create a food web and explore food sources for different organisms. They will identify relationships between organisms in an ecosystem. Though...

    $1 - $5 per group Ages 6 - 11 45 to 60 minutes
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    Minnesota Zoo
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    In this activity, learners will simulate the interactions between a predator population of gray wolves and a prey population of deer in a forest. After collecting the data, the learners plot the...

    1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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    National Health Museum
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    This activity helps the learner answer the question: "What environmental problems arise due to animal and human overpopulation and what might need to be done to combat these problems?"...

    $1 - $5 per group Ages 14 - 18 1 to 7 days

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