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Plate Tectonics Flashcards | StudBud
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Plate Tectonics
Plate Tectonics
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#8thgradeearthscience, #Missisippi
Flashcards
32 cards
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Questions
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Answers
1
What did Wegener call this map he made?
Pangea
Eurasia
Pandemonium
The new world
2
what can happen at divergent boundaries
plates stop moving & create a hot spot
plates collide and form volcanic mountains
plates slide past each other
plates move apart, magma rise, & volcanoes form
3
which of the following is evidence of seafloor spreading? select all that apply
age of rock on either side of a mid-ocean ridge
pole reversal causing magnetic striping in ocean crust
convection currents in the lithosphere
fossils found on ocean floor
4
Which of the following is an accurate description of the lithospheric plates
Malleable
easy to move
semi-liquid
rocky & brittle
5
what evidence supports that a boundary is convergent
convection currents
earthquakes
subduction zones
mid ocean ridges
6
destructive plate boundary where the crust is to subduction or crumbled
convergent
divergent
transform
7
What is the lithosphere?
Solid rocky part of Earth crust and uppermost mantel that has faults
Part of the upper mantle that is plastic and flowing
8
Which list is correct from the interior to the surface of earth?
crust, mantle, inner core, outer core
crust, mantle, outer core, inner core
inner core, outer core, mantle, crust
outer core, inner core, mantle, crust
9
what type of boundary is in the picture?
transform
divergent
convergent
10
Which describes the relationship between earthquakes and volcanoes?
Earthquakes and volcanoes are not related in any way.
Volcanic eruptions always cause severe earthquakes.
They are most often located where plates boundaries interact at fault lines
Earthquakes usually cause volcanoes to erupt.
11
what will form at this boundary?
rift valley
Mid ocean ridge & volcanoes in the ocean
Continental volcanic Mountains & a deep sea trench
volcanic Island Arc & deep sea trench
12
Which of the following caused the Hawaiian Islands to form?
subduction zones
mid ocean ridges
convergent boundaries of 2 ocean plates
hot spots
13
A boundary where two plates come together, or collide, is called a
convergent boundary.
Hot spot
divergent boundary.
transform boundary.
14
What does the red dot in the image represent?
Subduction zone
Mid ocean ridge
pressure zone
15
When two tectonic plates slip or slide past one another, what type of boundary is it called?
divergent
state
convergent
transform
16
constructive plate boundary where new crust is formed
divergent
transform
convergent
17
lithosphere includes what ? Select all that apply
continental crust
ocean
uppermost part of the mantle
ocean crust
18
Which modern day theory of plate tectonics improved & strengthen Wegener's Continental drift ideas?
fossil records that correlated
the process of seafloor spreading provided a mechanism for drift
climate evidence of tropical plants in now cold regions
glacier grooves in now warm regions
19
How do glaciers provide evidence for pangea?
evidence continents with similar groove patterns were joined farther south
provide evidence of land bridges forming
provide evidence that global warming causes ice caps to melt
they prove that ice ages occurred over the entire Earth
20
The lithospheric plates of Earth move due to being dragged along by
the high tides of the oceans.
the rotation of Earth on its axis.
Gravity pulling plates in different directions
convection currents in the asthenosphere.
21
What kind of boundary is at a mid ocean ridge?
transform
Hot spot
convergent
divergent
22
What conclusion about plate tectonics could be made based on the image?
erosion destroyed land between then two continents
continents were once joined together due to similar fossils on the coast
ice bridges formed allowing between migration the continents
similar climate allowed same animals to live in each place
23
plastic / semi-liquid flowing layer that has convection currents that drive plate motion
crust
lithosphere
outer core
asthenosphere
24
Why were scientist skeptical of Wegener's evidence for Continental Drift?
Wegener didn't provide evidence of a mechanism/force for his ideas
Wegner did not provide enough fossil evidence
Wegener could not explain how rock layers correlate
25
What landform is created when two continental plates such as when the Indian & Eurasian plate collided?
rift valley
canyon
Continental mountain range
Continental volcanic mountain range
26
Convection currents in the mantle begin with...
the core cooling off the mantle making it more dense and sinking
the core heating up the mantle making it less dense & rising
27
Ocean Crust is ___________ dense than continental crust.
less
more
28
Which of Wegener's evidences does this image support?
seafloor spreading
Forces erode mountains in different locations.
mid-ocean ridges.
Puzzle-like fit (patterns in the geometric shapes of continents)
29
Where is the youngest rocks found on the crust that provides evidence for sea floor spreading?
near the continents closer to the trenches
in the abyssal plain
in valleys at the base of mountains
Near the mid-ocean ridge
30
Which of the following boundaries will produce a volcanic mountain
two continental crust at a convergent boundary
two continental crust at a divergent boundary
two continental crust at a transform boundary
continental crust & oceanic crust at a convergent boundary
31
Which of the following matches the description: broken into plates
Mantle
Lithosphere
Asthenosphere
Core
32
The theory of plate tectonics attempts to explain the
layering of sedimentary rock.
gravitational forces of Earth.
composition of Earth's inner regions.
The mechanism for movement of Earth's upper layers.
