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    NOAA
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    In this activity, learners make a model of a pollution spill that occurred at Bangs Lake in Mississippi and measure water quality parameters in their model. Learners then study the actual spill,...

    Over $20 per group Ages 14 - 18 2 to 4 hours
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    Bridge: Online Ocean Science Education Resource Center
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    In this data analysis and environmental science activity, learners examine the effects of pollution on amphipods using data from the Chesapeake Ecotox Research Program. Learners calculate the...

    $1 - $5 per student Ages 14 - 18 45 to 60 minutes
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    University of Nebraska State Museum
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    In this activity (on pages 36-39), learners make a model of a watershed out of paper, then run water down the mountain to simulate how rainfall and pollution affect watersheds. Learners are...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    New Jersey Department of Education
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    In this activity, learners investigate the different salinity levels of oceans, rivers and estuaries. Learners then use experimentation to determine which sample is the best model of each type of...

    Over $20 per group Ages 8 - adult 1 to 7 days
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    New Jersey Department of Education
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    In this activity, learners discuss the different salinities of oceans, rivers and estuaries. Learners then use experimentation to determine which sample is the best model of each type of natural...

    $5 - $10 per group Ages 8 - adult 1 to 7 days
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    New Jersey Department of Education
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    An estuary is a body of water that is created when freshwater from rivers and streams flows into the saltwater of an ocean. To understand this mixing of fresh and salt water, learners go through...

    $10 - $20 per group Ages 8 - 18 1 to 4 weeks
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    Centers for Ocean Sciences Education Excellence
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    In this activity, learners construct a coastal landmass from sand and add features such as tidal creeks and barrier islands. Learners then add varying amounts of water to observe the effects of...

    $5 - $10 per group Ages 8 - adult 45 to 60 minutes
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    NOAA
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    In this activity, learners model estuaries, artificially enriching both fresh and salt water samples with different amounts of nutrients and observing the growth of algae over several weeks....

    $5 - $10 per group Ages 14 - 18 1 to 4 weeks
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    American Museum of Natural History
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    Learners create three solutions with different levels of salinity. They compare the density of these solutions by coloring them and layering them in a clear plastic cup and in a soda bottle....

    $1 - $5 per group Ages 8 - 18 10 to 30 minutes