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Plate Tectonics Review Flashcards | StudBud
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Plate Tectonics Review
Plate Tectonics Review
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#6th grade science
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
Where is new crust created?
mid-ocean ridges
folded mountains
subduction zones
deep ocean trenches
2
Stress that pushes a mass of rock in two opposite directions is called ___________.
Convection
Shearing
Tension
Compression
3
The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle
continental drift
subduction
sea-floor spreading
mountain formation
4
The formation of the Hawaiian Islands is one example of ___________.
volcanoes forming over a hot spot
sea-floor spreading
the Ring of Fire
volcanoes forming along plate boundaries
5
Most geologists think that the movement of Earth's plates is caused by ________.
convection currents in the mantle
earthquakes
Earth's magnetic field
convection currents in the outer core
6
Who proposed the idea of Continental Drift?
I did!
Alfred Wegener
Albert Einstein
Harry Hess
7
Before lava reaches the surface, the molten material is called ____________.
magma
volcanic ash
liquid fire
rock
8
What percent of the world's earthquakes happen at the Ring of Fire?
10 %
50 %
80 %
90 %
9
Which of the following did Hess use as evidence of sea floor spreading?
fossil evidence
magnetic pole reversal
climate change
traces of glaciers in South Africa
10
Why did scientists not accept Wegener's continental drift theory?
They thought he was crazy.
He could not give the reason of how or why they were moving.
They did accept his sea-floor spreading theory.
They said he didn't have any proof.
11
What is the name of the layer that the plates "float on" like putty?
Lithosphere
Outer Core
Asthenosphere
Crust
12
What type of plate boundary is being represented in the diagram?
divergent
transverse
transform
convergent
13
A collision between two
continental plates
results in.....
a rift valley
a mid-ocean ridge
a deep sea trench
a mountain range like the Himalayas
14
What type of stress is being represented in the diagram?
Divergent
Tension
Compression
Shearing
15
This diagram illustrates which type of boundary?
Continental
Transform
Divergent
Convergent
16
What type of fault is being represented in the diagram?
Tension Fault
Normal Fault
Strike-Slip Fault
Reverse Fault
17
Name this supercontinent.
Eurasia
Pangaea
Wegener
Africa
18
Geologists obtain indirect evidence about Earth's interior by ______________.
studying seismic waves
studying patterns in the sea floor
studying fossils
studying rock samples
19
What is responsible for Earth's magnetic fields?
convection currents in the outer core
sea-floor spreading
convection currents in the mantle
the extreme pressure in the inner core
20
Which layer of the Earth is a dense ball of solid iron and nickel?
Crust
Outer core
Inner core
Mantle
21
What is the cause of an earthquake?
Superman falling down.
Breaking rocks cause an earthquake.
The focus starts the earthquake.
The epicenter triggers an earthquake.
22
A force that acts on rock to change its shape or volume is called ________.
fault
seismic wave
friction
stress
23
Which layer of the Earth is composed of a layer of hot rock?
Outer core
Crust
Mantle
Inner core
24
What is the correct order of Earth's layers, starting from the outside going in?
Mantle, Crust, Inner Core, Outer Core
Crust, Mantle, Outer Core, Inner Core
Crust, Mantle, Inner Core, Outer Core
Inner Core, Outer Core, Mantle, Crust
25
What is the continental crust composed of ?
Granite
Molten rock
Iron and Nickel
Basalt
