Department of Earth Science |Northeastern Illinois University

ESCI 121
Spring 2007

Review for Exam #1  (January 31, 2007)                                                                        Dr. Sanders

For Exam #1, you should be able to do the following:

* List the requirements for this course.

* Draw a diagram illustrating the internal structure of the earth.  On it, clearly indicate and label the following: 
       crust ( show both oceanic crust and continental crust)
       inner core
       outer core
       lithosphere (show both oceanic lithosphere and continental lithosphere)

* Explain what the difference is between the crust, mantle, inner core, and outer core of the earth.

* Explain what the difference is between the lithosphere and asthenosphere.

* Explain what the difference is between continental lithosphere and oceanic lithosphere.

Plate Tectonics

*  Read and explain world maps that illustrate various geologic features: hot spots, crustal thickness, depth of earthquake focus, locations of volcanoes, geographic features, and plate boundaries. 
Download the handout we used (MSWord format) by clicking here.

*  Compile information from the maps to discern patterns. 
Download the handout we used (MSWord format) by clicking here.

Explain the patterns in terms of plate tectonics.

*  Describe the direction of movement at each of the three types of plate boundaries.

*  List and describe the geologic features you would find at each of the following types of plate boundaries.  Use sketches to illustrate each type, and give real-world examples of each.
       1) Divergent (also tell what type of plates are typically found at these boundaries--continental, or oceanic?)
       2) Convergent 
             A) Oceanic and contintental plates converging
             B) Oceanic and oceanic plates converging
             C) Two continental plates converging
       3) Transform

*  List the three major classes of rocks, and explain how they form.

*  For each of the three major classes of rocks, tell in what plate tectonic setting they are most likely to form.


* List the characteristics that all minerals have in common. 

* Explain the difference between rocks and minerals.

* Explain what is meant by the following terms used to describe
mineral properties

           q hardness         q luster         q streak         q specific gravity (similar to density)    
      q cleavage         q color       q odor        q solubility      q magnetism

* Demonstrate how to use mineral testing tools (e.g. streak plate, scratch plate, dilute hydrochloric acid) to explore the properties of hand samples of minerals.

* Explain how to evaluate the mineral properties listed above for a given mineral sample.

* Use a mineral key to associate names of minerals with their diagnostic properties.
  (For fun, visit the online mineral identification key provided by the Mineralogical Society of America!)

* Explore the sedimentary rock-forming minerals.  Examine the mineral samples in the following groups.   Explore and describe the properties of each mineral, and determine what each group has in common.  Finally, assign a name to each mineral using a mineral key.

                First Group:                                 #   7, 17, 19, 20, 40, 43
                Second Group:                           #   2, 18, 30, 46
                Third Group (if you have time): # 14, 33, 34, 44

Department of Earth Science | Northeastern Illinois University

© 2007 Laura L. Sanders.  Last updated January 29, 2007.