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Earth Continents Plates
move
layers
change Main
Plates
converge
???
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Back Answer
A1
Layer of earth made of hot, solid
metals
What is the inner core?
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A2
The Earth’s thickest layer
What is the mantle?
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A3
The layer made of liquid metals
that surrounds the inner core.
What is the outer core?
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A4
Earth’s crust and very top of the
mantle together
What is the lithosphere?
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A5
A layer of hotter, softer rock in the
upper mantle
What is the asthenosphere?
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B1
Hypothesis that Earth’s continents
were once joined in a single landmass
and gradually moved
What is continental drift?
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B2
This is what they called all of the
continents joined as one huge
supercontinent
What is Pangaea?
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B3
Huge underwater mountain ranges
What are mid-ocean ridges?
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B4
A circulation pattern in which material
is heated and rises in one area, then
cools and sinks in another
What is convection current?
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B5
It states that the Earth’s lithosphere is
made up of huge plates that move
over the surface of the Earth
What is the theory of plate tectonics?
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C1
A deep valley formed as tectonic
plates move apart
What is a rift valley?
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C2
An area where a column of hot
material rises from deep within a
planet’s mantle
What is a hot spot?
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C3
This occurs where plates push
together
What is a convergent boundary?
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C4
This is where two plates move apart,
most are found in the ocean
What is a divergent boundary?
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C5
This occurs where plates scrape past
each other
What is a transform boundary?
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D1
In the ocean, divergent boundaries
are called this
What is a spreading center?
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D2
The process by which an oceanic
tectonic plate sinks under another
plate
What is subduction?
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D3
FREE SPACE
You get the points
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D4
A boundary along which two plates
carrying continental crust push
together
What is continental-continental collision?
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D5
A boundary along which a plate
carrying oceanic crust sinks beneath a
plate with continental crust
What is oceanic-continental subduction?
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E1
FREE SPACE
You get the points!
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E2
A thin layer of cool rock
What is the crust?
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E3
Large, moving pieces into which
Earth’s lithosphere is broken
What are tectonic plates?
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E4
A switch in the direction of Earth’s
magnetic field
What is magnetic reversal?
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E5
A boundary along which a plate
carrying oceanic crust sinks beneath
another plate with oceanic crust
What is oceanic-oceanic subduction?