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Post on 14-Dec-2015
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Pulling meapart
Pulling meapart TensionTension ChemicalChemical PhysicalPhysical Not my faultNot 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 sea-floor 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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