Download Unit 7 – Forces that Change the Earth Study Guide 1. What is

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Unit 7 – Forces that Change the Earth
Study Guide
1. What is Pangaea?
All the continents
2. Which scientist first proposed the Continental Drift Theory? Alfred Wegener
3. Which two continents did Alfred Wegener think looked like they fit together
like puzzle pieces? South America & Africa
4. True or False – Alfred Wegner’s “Continental Drift” hypothesis was not
accepted until four decades after his death because he could not explain how
continental plates moved.
5. True or False – The theory of plate tectonics is a result of knowing that
Pangaea was a super-continent.
6. True or False – The theory of plate tectonics is a result of why the oceans and
continents have always been in the same locations.
7. True or False – The theory of plate tectonics is a result of finding older rocks
near continents and younger rocks near the center of oceans.
8. True or False – The theory of plate tectonics is a result of similar fossils being
found on all continents.
9. Why did Alfred Wegener think that fossils from a particular type of reptile
were found on both sides of the Atlantic Ocean?
The Atlantic Ocean did
not exist in earlier times.
10. What force is responsible for plate movement?
Unbalanced
11. True or False – A deep ocean trench is a landform that will most likely be
formed when two continental plates collide at a plate boundary.
12. True or False – A mountain range is a landform that will most likely be formed
when two continental plates collide at a plate boundary.
13. True or False – A rift valley is a landform that will most likely be formed when
two continental plates collide at a plate boundary.
14. True or False – A volcanic island is a landform that will most likely be formed
when two continental plates collide at a plate boundary.
15. A diagram showing which of the following would best represent the type of
plate movement that results in mountain building?
a. Arrows going the same direction
b. Arrows moving away from each other
c. Arrows moving past each other in opposite directions
d. Arrows moving toward each other
16. True or False – The formation of mountains is not explained by the theory of
plate tectonics.
17. Would a rift valley or a subduction zone most likely form when a continental and
an oceanic plate collide?
18. Would a volcanic island or a mid-ocean ridge most likely be found at a divergent
boundary?
19. When two plates collide, the process of one plate sinking below another is called
Subduction
20. True or False – Mid-Ocean ridge is the landform most likely to be found at a
convergent boundary.
21. True or False – Fault line is the landform most likely to be found at a
convergent boundary.
22. True or False – Mountain is the landform most likely to be found at a
convergent boundary.
23. True or False – Rift Valley is the landform most likely to be found at a
convergent boundary.
24. A transform fault or a trench is the geographical feature that could form when
two plates collide.
25. Which type of plate boundary is most likely to have cause The Ring of Fire?
Convergent Boundary
26. True or False – Scientists believe that convection currents within the
asthenosphere are responsible for the movement of the plates that form the
Earth’s crust.
27. True or False – Scientists believe that convection currents within the
Lithosphere are responsible for the movement of the plates that form the
Earth’s crust.
28. True or False – The most recently formed crust of the Earth would be found
where two plates are pushing directly toward each other.
29. True or False – The most recently formed crust of the Earth would be found
where two plates are moving away from each other in opposite directions.
30. True or False – The most recently formed crust of the Earth would be found
where one plate is going under another plate.
31. True or False – The most recently formed crust of the Earth would be found
where plates moving sideways passed each other.
32. Would weathering most likely reshape the top of a land form to increase
elevation or decrease elevation?
33. A mountain will most likely become rounder and less steep or more steep and
jagged over time?
34. Using a topographic map, how do you figure the change in elevation?
Ending location – beginning location
35. Using a topographic map, how do you know which area is the most steep?
The contour lines are closer together
36. On a topographic map the V points toward the higher elevation. So if a stream
is flowing down a mountain (as shown on a topographic map) left to right, which
direction would the V be? <<<< or >>>>>>
37. Based on the previous question, where would a delta form? To the right
38. Where would the youngest ocean floor be found on a model? Oceanic spreading
39. Where would the oldest ocean floor be found on a model? Subduction Zone
40. Where would a convergent plate boundary be found on a model? Where two
plates are colliding
41. Where would a divergent plate boundary be found on a model? Where two
plates are moving apart