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Continental Drift/ Sea Floor Spreading Flashcards | StudBud
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Continental Drift/ Sea Floor Spreading
Continental Drift/ Sea Floor Spreading
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Used for review in Earth Science before a test on Sea Floor Spreading.
Flashcards
19 cards
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Practice quiz
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Questions
19
Answers
1
Alfred Wegener showed that the sea floor was spreading and moved the continents
True
False
2
Magma that turns into rock at the mid ocean ridge, has iron crystals that record
Earth's History
Earth's gravity
Earth's magnetism
Earth's cosmic rays
3
What is the name of the supercontinent when all the continents were connected?
Laurasia
Pangaea
Godwana
Panama
4
Which scientist proposed that the ocean floor was expanding around mid ocean ridges?
Harry Hess
Alfred Neuman
Albert Einstein
Alfred Wegener
5
Which one of the following is not in the mid ocean ridge?
Rift Valley
Ocean Trench
New Rock
Volcanic Activity
6
What force is cited as the driving force that moves the ocean plates?
Convection Currents
Ocean Currents
Earthquakes
Volcanoes
7
Which one of the following is not true of Harry Hess?
All true
Navy Officer
Scientist
Harvard Professor
8
The Earth's magnetic field has apparently switched in the past
True
False
9
Alfred Wegener used
sonar
to help him determine if the continents were moving.
True
False
10
The Pacific Ocean is
Expanding
Contracting
11
Which one of the following is
not
an evidence for sea floor spreading?
Age of the Rocks
Type of Rock
Magnetic Pattern
12
The presence of coal in Antarctica means that this continent must have
all of these
had tropical weather
moved over time
changed climate
13
The mid ocean ridge is which one of the following?
Convergent Boundary
Divergent Boundary
14
Which one of the following is
not
evidence for a one time supercontinent.
Fossils
Mountain Ranges
Magnetism
Glacier Marks
15
The Atlantic Ocean is
Contracting
Expanding
16
The oceanic crust is more dense than the continental crust.
True
False
17
What is it called when oceanic crust goes down into the mantle under the continental crust?
subduction zone
superposition
sublimation
A. Divergent boundary
18
What type of boundary is it when an ocean plate meets a continental plate?
Subduction
Convergent
Insurgent
Divergent
19
What feature is usually found over subduction zones?
Volcanoes
Mountain Ranges
All of these
Earthquakes
