This assignment does not count toward the final grade.

ESCI B.S2.O2.A3 Ocean Floor Discoveries

  • Due No Due Date
  • Points 0
  • Submitting a text entry box or a file upload

This first video gives the history about how we discovered ocean floor features that lead us to accept the Theory of Plate Tectonics.

ESCI B.S2.O2.A3 Mapping the Ocean Floor - Evidence for Continental Drift VID Links to an external site. 

DIANNE, LEAVE THIS ONE...IT IS NO LONGER AVAILABLE ON YOUTUBE.


This next video explains another piece of evidence for sea floor spreading. After you have watched both videos answer the questions in the textbox and submit. 

ESCI B.S2.O2.A3 Magnetic Reversals and Sea Floor Spreading VID Links to an external site.

 

 

Your Assignment:  Answer the following questions:

  1. What big feature did they find on the ocean floor?
  2. How did it support Alfred Wegener's Continental Drift Theory?
  3. What is magnetic striping?
  4. How does it support the idea of seafloor spreading?
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Rubric

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ESCI B.S2.O2.A3
ESCI B.S2.O2.A3
Criteria Ratings Pts
This criterion is linked to a Learning Outcome ESCI.S2.O2.00 Describe the development of the current theory of plate tectonics and the evidence that supports this theory.
threshold: 3.0 pts
4 pts
Mastery
3 pts
Proficient
2 pts
Approaching Proficient
1 pts
Beginning Proficient
0 pts
No Evidence
pts
4 pts
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Additional Comments
Total Points: 4 out of 4