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Name ______________________________ Class ___________________ Date __________________
Skills Worksheet
Directed Reading A
Section: The Effect of Gravity on Erosion and Deposition
1. What is mass movement?
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2. What causes ice, rocks, and soil to move down a slope?
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ANGLE OF REPOSE
3. What is the “angle of repose”?
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4. What are three of the characteristics of a material that will affect its angle of
repose?
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Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
8
Agents of Erosion and Deposition
Name ______________________________ Class ___________________ Date __________________
Directed Reading A continued
RAPID MASS MOVEMENT
Match the correct definition with the correct term. Write the letter in the space
provided. Some terms will not be used.
_____ 5. a group of loose rocks falling down a
steep slope
_____ 6. sudden, rapid movement of rock and soil
down a slope
_____ 7. mudflows of volcanic origin
a.
b.
c.
d.
e.
f.
landslide
slump
mudflow
lahar
rock fall
monsoon
_____ 8. rapid movement of a large mass of mud
SLOW MASS MOVEMENT
_____ 9. Extremely slow movement of material downhill is called
a. slump.
b. rock fall.
c. creep.
d. mudflow.
10. What are three factors that affect creep?
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Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
9
Agents of Erosion and Deposition