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Transcript
Plate Tectonics: Ch. 22.4
Self Quiz
Quiz format: multiple choice, fill ins, short answer, short essay
Review: Notes, vocab, text, Guided Reading & review wkshts
1. Which choice DOES NOT represent evidence
that Alfred Wegner used to support his theory of
Continental Drift?
a. Fossil records from continents separated by
oceans
b. Similar geological formations, like mountain
chains, on different continents.
c. Observations of sea floor spreading at the MidOcean Ridge.
d. Evidence of glaciers in locations that are near
the equator.
C
B
A
D
2. Which letter points to the YOUNGEST ocean crust?
Which
3. A CONVERGING plate boundary is occurring at letter:
4. The convection currents of magma occur in the
__________ layer of the mantle (Lithosphere,
Asthenosphere, Mesosphere)
5. The plates are made up of these these two layers of
Earth:
6. The patterns of magnetic striping on the sea –
floor indicate that …
a. Rocks of the ocean floor are all the same age.
b. Rocks of the ocean floor vary in age
c. Rocks of the ocean floor are the oldest on the
planet.
7. Which choice/choices are results of this plate
movement?
A. Earthquakes
B. Volcanoes
C. New Ocean Crust
D. Island formation
8. This plate movement is taking place in …
a. Japan
b. Iceland
c. East Africa
d. California
9. This is a (Convergent/ Divergent/ Transforming)
plate boundary, called _____________________.
10. It is currently occuring in __________.
11.Circle the results of this plate motion :
a. EQs
c. Volcanoes
e. Rift Valley
b. Trench
d. M.O.R.s
f. Narrow Sea
B
A
C
12. Which of the locations above would you expect to
find volcanic activity? A? B? C? (or a
combination)?
13. Which location is the likely location of a trench?
14. Which location has the youngest crust?
15. Identify the plate movement that is taking place
in the diagram above.
16. Describe what is happening.
17. When two plates collide, what determines which
one will sink back into the mantle?
18.Which letter shows the location with the least tectonic activity?
19. Would you expect to find volcanic activity at C? Why or why not?
20. Explain HOW the Mediterranean has shrunk over time. What plate
movement would be responsible?
Answers
1. C
12. B & C
2. A
13. B
3. C
14. C
4. Asthenosphere
15. Subduction
5. Crust & upper mantle
16. An ocean plate collides with a land or ocean
plate and sinks back into the mantle.
6. B
17. Density – the ocean plate sinks into the
mantle because it is made of denser rock.
7. A
18. E
8.
D
19. No vocanoes where 2 land plates collide
(Mt. Building)
9.
10.
11.
Divergent
E. Africa
A, C, E, & F
20. Subduction destroys oceanic crust and will
shrink an ocean in size over time.
Be sure to study…
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Vocabulary
Wegner’s Continental Drift & his evidence
Plate Tectonics
What layers make up plates?
Why do plates move?
Describe what is happening in a convection current & why it
happens
Identify sources of heat driving convection currents.
Discoveries in the sea – floor that confirmed sea floor spreading &
plate tectonics
What is the evidence to support Hess’s Sea-floor Spreading theory (2
pieces)?
Describe how the sea-floor is recycled in a conveyor belt fashion.
Compare types of plate movements – Description, Results, &
Location
– Seafloor Spreading; Rifting; Subduction; Mt. Building; Transform
Use this to answer question 17.