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    Welcome to 
    Troubled Waters

    A Note to Teachers
    What is this activity? A Note to Students

    "Troubled Waters" is an authentic task dealing with different factors and how they change certain parameters in a river. Several of these parameters are dissolved oxygen, pH, nitrates, and fecal coliform bacteria.

    Students will be using the modeling tool STELLA. Students will run a river model, interpret graphs, and adjust a variable such as wind speed and sewage load to determine the effects on Dissolved oxygen levels.


    Developed by
    Team North Carolina
    Copyright 2001

    This project is supported, in part,
    by the

    National Science Foundation

    Opinions expressed are those of the authors
    and not necessarily those of the National Science Foundation.