Chapter 9 Test Study Guide
1. Define the following terms:
a)
b)
c)
d)
e)
f)
g)
h)
i)
Paleomagnetism
Normal Polarity
Reverse Polarity
Hot Spot
Convective Flow
Slab-pull
Ridge-Push
Convergent Boundary
Divergent Boundary
j)
k)
l)
m)
n)
o)
p)
q)
Subduction Zone
Continental Drift
Pangaea
Plate
Rift Valley
Transform Fault Boundary
Plate Tectonics
Hot Spot
2. How long ago did continental drift begin?
3. According to Wegener, how many continents existed 200 million years ago?
4. In the table below, summarize the evidence provided for continental drift.
Evidence
Summarization
Continental
Puzzle
Matching Fossils
Rock Types and
Structures
Ancient Climates
5. Explain how older rocks show the direction of Earth’s magnetic field over time.
6. Explain how convection currents move Earth’s plates.
7. What is the average annual movement of the lithospheric plates?
8. The San Andreas Fault is a type of ____________________ boundary.
9. How do rift valleys form?
CPHS Physical Geology
Mr. G. Edelman
10. Explain how seafloor spreading occurs.
11. Describe a) divergent boundaries, b) convergent boundaries and c) transform fault
boundaries.
12. How did the Hawaiian Islands form?
13. Geographically, where do we find convergent boundaries.
14. What occurs at Subduction zones?
15. Explain how geophysicists learned that the Earth’s magnetic field has changed.
16. What is the main source of downward convection movement in the mante?
17. What is the magnetic evidence for seafloor spreading?
18. Explain how magnetic reversal in rocks occurs.
19. What causes ridge-push motion?
20. Describe the whole mantle model for convestion.
21. What happened to Pangaea?
22. The ___________ is the largest lithospheric plate.
23. How are plate boundaries and earthquakes related?
24. Describe what happens at plate boundaries.
25. Describe slab-pull motion.
26. What is the evidence on the surface of Earth for Mantle plumes?
27. Which continental plate do we live on?
28. How did hotspots provide evidence for plate tectonics?
29. The study of changes in Earth’s magnetic field is called _____________.
30. The Hawaiian islands were are created by a __________.
31. How do hot spots and the plate tectonics theory account for the different ages of the
Hawaiian Islands?
32. What drives the movement of the plates and mantle?
CPHS Physical Geology
Mr. G. Edelman