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    National Park Service
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    In this online interactive, learners explore the various types of life that live in fresh water systems and how the presence of these organisms is an indication of the overall health of the water....

    free Ages 8 - 14 10 to 30 minutes
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    Smithsonian National Zoological Park
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    In this online activity, learners design a new giant panda habitat for Mei Xiang and Tian Tian. Learners must balance the needs of the pandas, visitors, and staff in order to create a hospitable...

    free Ages 6 - 14 5 to 10 minutes
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    NOAA
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    In this game, learners walk through an imaginary Carbon Cycle and explore the ways in which carbon is stored in reservoirs and the processes that transport the carbon atom from one location to...

    free Ages 11 - 18 45 to 60 minutes
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    Twin Cities Public Television
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    In this online Flash game, learners will explore a coral reef using an underwater remotely operated vehicle (ROV). Faced with concerns that environments around the world might be undergoing rapid...

    free Ages 6 - 14 5 to 10 minutes
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    BioEd
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    In this neuroscience activity, learners conduct a simulation to demonstrate how multiple incoming signals influence the action of neurons. This activity will help learners think about how brain...

    free Ages 11 - 14 30 to 45 minutes
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    NASA
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    In this activity, learners will train to improve lung, heart, and other muscle endurance as they walk a progressive, measured distance. Learners measure out a course according to specific distances...

    free Ages 8 - 14 1 to 4 weeks
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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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    University of Utah
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    In this activity, learners use pedigree and jigsaw puzzles to explore how scientists use genetic information from a family to identify a gene associated with a genetic disorder. This activity will...

    free Ages 11 - 18 10 to 30 minutes
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    NOAA
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    In this activity (on page 7), learners explore the meaning of a "carbon sink." Using simple props, learners and/or an educator demonstrate how plants act as carbon sinks and how...

    free Ages 8 - 14 45 to 60 minutes
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    Science Museum of Minnesota
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    This is an online simulation of how sound changes due to environment. How does place--like a cave, a pier, or a forest--affect certain sounds? Move the sound pieces around and change the location...

    free Ages 4 - 8 5 to 10 minutes

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