chapter 4 ire review Download

Transcript
Pulling me
apart
Tension
Chemical
Physical
Not my fault
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Tectonic plates consist of
______________________
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both continental and oceanic crust.
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The deep interior of the Earth can
be mapped using
______________________
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seismic waves
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Wegener thought that all the
continents were once together in one
large continent called
______________________
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What is Pangaea
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Evidence for sea-floor spreading
has come
from______________________
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magnetic minerals on the ocean floor
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A possible result of plates moving
along a transform boundary
is______________________
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What are earthquakes
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What is the outermost layer of the
Earth called?
______________________
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What is the
lithosphere
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What type of fault usually occurs
because of tension?
______________________
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What is normal
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What type of fault usually occurs
because of compression?
______________________
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What is reverse?
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What kind of force can lead to
mountains with sharp, jagged
peaks? ______________________
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What is tension
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What type of boundary is formed when plates
collide? ______________________
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What is convergent
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According to the continental drift
theory, a single, huge continent once
existed
called______________________
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What is Pangaea ?
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Where does sea-floor spreading take
place? ______________________
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What are the mid-ocean ridges
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The mantle is denser than the crust
because it contains
more______________________
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What is magnesium
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Seismic waves travel through
Earth’s layers at different speeds
depending on
the______________________
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What is density
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The fact that similar fossils are
found on both sides of the ocean
is evidence
of______________________
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What is continental drift.
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What do scientists use the global
positioning system for?
______________________
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What is to measure tectonic
plate motion
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What is it called when Earth’s
magnetic poles change places?
______________________
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What is Magnetic reversal
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The layer of rock that comprises
67% of Earth’s mass
____________________.
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What is the mantle ?
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What is the major evidence that seafloor spreading creates new
lithosphere?
Explain your answer.
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What is
-Molten rock at mid-ocean ridges has magnetized
minerals that align with Earth’s magnetic field
-When the Earth’s magnetic field reverses, the
magnetized minerals align in the opposite direction
-The record of magnetic reversals is carried away from
each side of the spreading center of a mid-ocean ridge,
showing that the molten rock is creating new
lithosphere.
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What is the order of the layers of the
Earth from the surface to the center?
______________________
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What are
Lithosphere,
Asthenosphere,
Mesosphere,
Outer core,
Inner core
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Tectonic plates “float” on what ?
______________________
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What is Gondwana
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The San Andreas Fault is an
example of a
______________________
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What is a strike-slip fault.
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Earth’s liquid layer
____________________.
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What is outer core
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Stress that stretches a rock
layer____________________.
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What is tension
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Explain the process of subduction.
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-oceanic plate is forced beneath a
less dense oceanic or continental
plate at a convergent boundary
-Gravity pulls the oceanic plate into
the hot asthenosphere, which causes
melting.
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