Department of Earth Science |Northeastern Illinois University

ESCI 121
Spring 2007

Daily Objectives #21
(April 11, 2007)                                                                        Dr. Sanders

By the end of today’s class, you should be able to do the following:

* Draw a diagram illustrating the processes and products of the water cycle (hydrologic cycle).

* Describe the work that streams do (erosion, transportation, and deposition) in terms of energy.

* On a map showing a stream meander, indicate where erosion is likely to be highest and where deposition is likely to take place.  Explain.

* On a map, show an oxbow or oxbow lake and explain how they formed (topo quad: Arlington Heights).

* Explain what a stream floodplain is and how and why it forms. 

* On a topographic map, delineate the edges of a stream floodplain. 

* Measure the width of the
floodplain of the Mississippi River (topo quads: Rockwood, Kaskaskia, Selma, Cahokia, and Blackhawk, IL).

* List and explain factors that can affect the rate of water infiltration into the subsurface.

* Describe some of the ways various watersheds might differ from each other in terms of hydrologic characteristics (e.g. size of drainage area, degree of urbanization, and so on).

* Describe what is expected of you in Homework #6, due at class time next week.

Department of Earth Science | Northeastern Illinois University

© 2007 Laura L. Sanders.  Last updated April 11, 2007.