BIOGRAPHY OF A RIVER

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G. Why are trout usually found only in mountain streams?H. Discuss how warm water animals, such as manatees, tend to congregate aroundpower plant discharges. Also discuss how this affects them. (They get stuck inpipes and are cut up or killed by blades.)IV. ExtensionsAsk students to research the following:A. Optimum water temperatures and oxygen levels needed by different species ofgame and non-game fish.B. How the temperatures and oxygen levels determined in A. affect thermal pollutionregulations for different stream classifications.RESOURCESArms, Karen, Environmental Science, Holt, Rinehart, and Winston, Inc., Austin, TX, 1996.Chiras, Daniel D., Environmental Science, High School Edition, Addison-Wesley,Menlo Park, CA 1989.Nebel, Bernard J. and Richard T. Wright, Environmental Science: The Way The World Works,4th Edition, Prentice-Hall, Englewood Cliffs, NJ, 1993.3-94
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B. Read descriptions of rivers in l
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CATCH ME IF YOU CAN --9-12 (TWO WAY
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III.Depending on the units used for
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. Be sure that the water supply pai
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3-15Student Sheet
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1. the littoral zone: shallow water
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profundal zone: a zone in a lake ex
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5. Alternative to this would be to:
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y y
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3-25
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algal bloom: a sudden increase in t
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3-29Student Sheet
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manufacturing and for removing the
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2. Group 2- Wide Range of Tolerance
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Student SheetTEAM MEMBERSData Recor
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3-37
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Termsdam: man-made or animal-made b
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With six groups:1. Groups 1 and 2:
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so that the forests can continue to
Page 47 and 48: II.ActivityA. Determine whether the
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Page 53 and 54: was incubated naturally at atmosphe
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Page 69 and 70: lactose: a type of simple sugar tha
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BIOGRAPHY OF A RIVER

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