Objectives 6 E Review- TEST FRIDAY, JANUARY 4th
Part A:
Read each question and answer. Then decide if each answer is correct or incorrect.
If the answer is correct: Write why?
If the answer is incorrect: Write why? And include the right answer
Layer A
1. What Layer of Earth is “Layer A?”
Answer: Outer Core
Layer B
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Layer C
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Layer D
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2. In what layer of the Earth do convection currents occur?
Answer:
Inner Core
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3.
a
.
At which plate boundary does new crust form?
Answer:
c
c
.
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b
.
d
.
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4. The diagram shows land features that have been
disrupted and changed by an earthquake. Which type
of crustal movement caused the changes of the rocks in
this area?
Answer:
movement along a fault
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5. Which of these supports Wegener’s theory of continental drift?
Answer:
a.
Similar rocks and similar fossils on different continents.
b.
Sea floor spreading and Earth’s rotation.
c.
Convection currents in the outer core.
d.
Fossils from ancient organism and convection currents in the crust.
b
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6. Why are many of Earth’s volcanoes found near Subduction zones?
Answer:
d
a. Subduction is caused by volcanic activity
b. Earthquakes affect conditions that can lead to both subduction and volcanoes
c. The subducted plate separates and allows magma to rise
d. The sinking plate heats, partially melts, and forms magma
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7. Is the following diagram a normal, reverse, or strike slip fault?
Answer:
reverse
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Part B: Answer Each Question
8. The Lithosphere is composed of
a.
b.
Tectonic, Plates
Mantle, Outer Core
____________ and _____________.
c. Upper Mantle, Crust
d. Asthenosphere, Crust
9. What are convection currents? What causes convection currents? How does convection current
affect tectonic plates? Draw a diagram of convection current.
10. Examine this map of California. What could you most likely expect to happen if you moved to
the boxed area? Why?
11. Which type of boundary and resulting feature
of the Earth are illustrated in the diagram?
12. How do scientists determine the magnitude of an earthquake?
a. By recording the seismic waves with a seismograph and measuring magnitude with a
Richter Scale
b. By recording the seismic waves with a Richter Scale and measuring magnitude with a
seismograph
c. By recording the Richter scale and measuring the distance between seismic waves
d. By recording the seismograph and watching the Richter Scale to see how long the
seismic waves last.
13.
a. Describe the process that most likely caused the change in the positions of South America and Africa over the
last 65 million years.
b. State one piece of evidence to support the theory that South America and Africa were once connected.
14.
Identify one geologic event that often occures near this
type of crustal plate boundary.
What theory is used to explain the movement of crustal
plates?