Lake michigan (the only great lake which is entirely within the boundaries of th
ID: 161069 • Letter: L
Question
Lake michigan (the only great lake which is entirely within the boundaries of the united states and the largest body of fresh water in the us) is located in a relatively cold climate. It is 494 kilometers long and 190 kilometers at its widest, and reaches a depth of 281 meters.
a. On January 1, 1900, what was probably the temperature at the bottom of Lake Michigan?
b. Would you expect the temperature to be different at the bottom of the lake on August 17, 1925? Why or why not?
c. During the winter months, the entire lake is not covered with ice, but near the shore, ice does form sufficiently thick for ice fishing. Explain.
Explanation / Answer
(a)
the temperature at the bottom of the lake 39 degrees fahrenheit. when the water approaches to 39 degrees fahrenheit, it sinks too the bottom oft the alke, because water is denset at 39degrees fahrenheit. thats why all the oceans and deep lakes have the bottom temperatures nearly 39 degrees fahrenheit. on this 39 degrees fahrenheit temperature water, ice begins form and float on top of the warmer water. but in summer season warmer water floats on cold water. here, On January 1 1990 the temperatureat the bottom of the lake is 39 degrees fahrenheit or 4 degrees centigrade.
(b)
The bottom temperature of the lake may not change that much it alsmost remains same on August 17 1925. that is, 4 degress C.
(c)
The water near to the lake shore is normally shallower compare to the middle of the lake. for the formation of ice total the water in a given area must be cooled below 4 degrees C, since the area closer to the shore is shallower this means that the water at the shore can be cooled to that level faster compare to the middle of the lake.
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