Stream Erosion: Imagine you are on location in Minnesota. You note that the water in the stream you are analyzing is clear. You take a sample of the
water and look at it with a microscope.
A. What will you find, including details of origin and relation to landscape alteration?
B. Next you let a sample of the water evaporate. What might you find in the collection dish once the water is gone? Why?
C. You also note that sand and gravel forms the inside riverbed of the stream meanders. Clarify where the sand came from and why it is found
where it is.
D. Next you find that the deepest portion of the stream is near the middle. Cobblestones occupy the bed there. Explain how that is possible and
why the stream is deepest in the center.