Download ES Ch 3 Test

Name ____________________________
Date ____________________ Class _____________
Plate Tectonics
Chapter Test A
Multiple Choice
Write the letter of the correct answer on the line at the left.
______ 1. According to Wegener’s hypothesis of continental drift,
a. Earth’s surface is made up of seven major landmasses.
b. the continents do not move.
c. Earth is slowly cooling and shrinking.
d. the continents were once joined together in a single landmass.
______ 2. What is Pangaea?
a. the name of a German scientist
b. the name of the supercontinent that existed millions of years ago
c. another name for continental drift
d. the name of an ancient fossil
______ 3. Any trace of an ancient organism that has been preserved in rock is called a
a. landform.
c. fossil.
b. continent.
d. landmass.
______ 4. What technology did scientists use in the mid-1900s to map the mid-ocean
ridge?
a. satellites
c. submarines
b. deep-sea diving
d. sonar
______ 5. In sea-floor spreading, molten material rises from the mantle and erupts
a. along the edges of all the continents.
b. along mid-ocean ridges.
c. in deep-ocean trenches.
d. at the north and south poles.
______ 6. Oceanic crust sinks below continental crust because it is
a. hot.
b. more dense.
c. cool.
d. closer to the mid-ocean ridge.
______ 7. Most geologists think that the movement of Earth’s plates is caused by
a. conduction.
b. earthquakes.
c. convection currents in the mantle.
d. Earth’s magnetic field.
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Chapter Tests
© Pearson Education, Inc., or its affiliates. All rights reserved.
Name ____________________________
Date ____________________ Class _____________
Plate Tectonics (continued)
______ 8. The geological theory that states that pieces of Earth’s lithosphere are in
constant, slow motion is the theory of
a. subduction.
c. deep-ocean trenches.
b. plate tectonics.
d. sea-floor spreading.
______ 9. A place where two plates slip past each other, moving in opposite
directions, is known as a
a. transform boundary.
c. convergent boundary.
b. divergent boundary.
d. rift valley.
______ 10. A collision between two pieces of continental crust at a converging
boundary produces a
a. mid-ocean ridge.
c. rift valley.
b. deep-ocean trench.
d. mountain range.
Completion
Fill in the line to complete each statement.
Continental Drift, Sea-Floor Spreading, Deep-Ocean Trench, Plates, Rift Valley, Mid-Ocean
Ridge, Trench
11. The hypothesis of _________________________ was that all the continents once were joined
as a single supercontinent and have since drifted apart.
12. The process of _________________________ continually adds new crust to the ocean floor
along both sides of the mid-ocean ridge.
13. Subduction occurs where the oceanic crust bends down toward the mantle at a(n)
_________________________.
14. The lithosphere is broken into sections called ____________________, which float on top of
the asthenosphere.
15. When continental plates pull apart at a divergent boundary on land, a(n)
____________________ forms.
True or False
If the statement is true, write true. If it is false, change the underlined word or words to make the
statement true.
____________
16. If subduction occurs faster than oceanic crust can be created, an ocean will
expand.
____________
17. Oceanic crust near the mid-ocean ridge is younger than oceanic crust
farther away from the ridge.
____________
18. Alfred Wegener provided evidence from landforms, fossils, and climate in
support of his theory of “The Origin of Continents and Oceans.”
____________
19. Mid-ocean ridges form the longest mountain ranges on Earth.
____________
20. Along a divergent boundary, two plates slip past each other, moving in
opposite directions.
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Chapter Tests
© Pearson Education, Inc., or its affiliates. All rights reserved.
Name ____________________________
Date ____________________ Class _____________
Plate Tectonics (continued)
Using Science Skills
Use the figure below to answer the following questions in the spaces provided.
21. Is plate B more or less dense than plate C.
____________________________________________________________________________
____________________________________________________________________________
22. What feature occurs at X and how does it form?
____________________________________________________________________________
____________________________________________________________________________
23. What feature occurs at Y, and how does it form?
____________________________________________________________________________
____________________________________________________________________________
24. Describe what is happening at point Z in the diagram.
____________________________________________________________________________
____________________________________________________________________________
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Chapter Tests
© Pearson Education, Inc., or its affiliates. All rights reserved.
Name ____________________________
Date ____________________ Class _____________
Plate Tectonics (continued)
Using Science Skills
Use the figure below to answer the following questions in the spaces provided.
A.
B.
C.
D.
25. Describe what the sequence of maps A through D show.
____________________________________________________________________________
____________________________________________________________________________
26. List two examples of continents that have drifted apart from each other.
____________________________________________________________________________
____________________________________________________________________________
Essay (PICK ONE OF THE FOLLOWING ESSAYS)
Write an answer for each of the following questions on a separate sheet of paper.
27. According to the theory of plate tectonics, explain what causes changes in Earth’s surface.
28. Compare and contrast what occurs when two oceanic plates collide, when two continental
plates collide, and when an oceanic and a continental plate collide.
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Chapter Tests
© Pearson Education, Inc., or its affiliates. All rights reserved.