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Name ______________________________ Class ___________________ Date __________________
Chapter 7, Section 4 (p. 206)
Directed Reading
Section: Deforming the Earth’s Crust
Circle the letter of the best answer for each question.
1. What do we call the amount of force placed on something?
a. stress
b. drift
c. uplift
d. bending
DEFORMATION
2. What is it called when rock changes shape because of stress?
a. deformation
b. re-formation
c. compression
d. tension
COMPRESSION AND TENSION
Read the words in the box. Read the sentences. Fill in each blank with
the word or phrase that best completes the sentence.
compression
tension
convergent
divergent
3. Stress that happens when something is squeezed is called
______________________
4. Rock layers are squeezed at ______________________ boundaries.
5. Stress that happens when something is stretched is called
______________________.
6. Rock layers are stretched at ______________________ boundaries.
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Plate Tectonics
Name ______________________________ Class ___________________ Date __________________
Directed Reading B continued
FOLDING
Circle the letter of the best answer for each question.
7. What is the bending of rock layers because of stress called?
a. faulting
b. folding
c. compression
d. stress
Types of Folds
Read the description. Then, draw a line from the dot next to each
description to the matching word.
8. a rock layer fold that looks
like an arch
9. a rock layer fold that dips
down like a trough
10. a rock layer fold that looks
bent in the middle
FAULTING
11. the surface along which
rocks break and slide past
each other
12. fault block you could rest a
foot on
13. fault block you could hang
from on a rope
•
•
•
•
•
•
a. anticline
b. monocline
c. syncline
a. hanging wall
b. footwall
c. fault
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Plate Tectonics
Name ______________________________ Class ___________________ Date __________________
Directed Reading A continued
Normal Faults
Read the words in the box. Read the sentences. Fill in each blank with
the word or phrase that best completes the sentence.
normal fault
reverse fault
strike-slip fault
sedimentary rock
14. When the hanging wall moves downward against the footwall it is a
______________________
Reverse Faults
15. When a______________________ fault moves, the hanging wall moves
up relative to the footwall.
Telling the Difference Between Faults
16. You can tell a fault is normal by looking at the order of
______________________ layers.
Strike-Slip Faults
17. When rock breaks and moves sideways in opposite directions, it is a
______________________.
PLATE TECTONICS AND MOUNTAIN BUILDING
Circle the letter of the best answer for each question.
18. What can faults and folds become?
a. a mid-ocean ridge
c. a mountain range
b. a tectonic plate
d. a volcano
Folded Mountains
19. What mountains are formed when rock layers are squeezed together and
pushed up?
a. folded mountains
c. volcanic mountains
b. fault-block mountains
d. strike-slip mountains
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Plate Tectonics
Name ______________________________ Class ___________________ Date __________________
Directed Reading A continued
Fault-Block Mountains
Circle the letter of the best answer for each question.
20. What type of mountains are formed when Earth’s crust is stretched?
a. folded mountains
b. fault-block mountains
c. volcanic mountains
d.strike-slip mountains
Volcanic Mountains
21. What type of mountains are formed when magma rises to Earth’s surface
and erupts?
a. folded mountains
b. fault-block mountains
c. volcanic mountains
d. strike-slip mountains
UPLIFT AND SUBSIDENCE
22. What is it called when parts of the Earth’s crust rise?
a. uplift
b. subsidence
c. rebound
d. letdown
23. What is it called when parts of Earth’s crust sink?
a. uplift
b. subsidence
c. rebound
d. letdown
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
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Plate Tectonics
Name ______________________________ Class ___________________ Date __________________
Directed Reading A continued
Uplifting of Depressed Rocks
Circle the letter of the best answer for each question.
24. What happens when rock layers rebound?
a. They break.
b. They deform.
c. They sink lower.
d. They return to their original elevation.
Subsidence of Cooler Rocks
25. What happens in the ocean when rock layers cool?
a. The ocean floor sinks.
b. The ocean floor erupts.
c. The ocean floor rises.
d. The ocean floor spreads.
Tectonic Letdown
26. What is a rift zone?
a. an ocean ridge
b. a mountain range
c. a set of deep cracks
d. a fault and a fold
d. strike-slip mountains
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
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Plate Tectonics