to understand how plates move, here are more details about the earth’s crust:
DESCRIPTION
Lithosphere- made up of the crust and very top of the mantle- also known as a tectonic plate Asthenosphere - hotter, softer layer of rock on which the lithosphere rests. Ocean crust is ______ Continent crust is ____. - PowerPoint PPT PresentationTRANSCRIPT
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To understand how plates move, here are more details about the Earth’s crust:
Lithosphere- made up of the crust and very top of the mantle- also known as a tectonic plate
Asthenosphere- hotter, softer layer of rock on which the lithosphere rests.
Ocean crust is ______Continent crust is ____
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Label your drawing
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Continental Drift-Alfred Wegener said that the continents used to be all together in one large landmass called: Pangaea
Evidence: Similar rocks and Similar fossilson different continents
Can you create Pangaea?
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The Seafloor is spreading apartMid-Atlantic ridge- underwater mountain range
formed by convection currents in the asthenosphere
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1. Divergent Boundarya. Ocean-ocean pulling apartb. Forms underwater mountain rangec. Mid- Atlantic Ridge
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1. Divergent boundarya. Continent- continent pulling apartb. Forms a rift valleyc. Africa- Great Rift Valley
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2.Convergent-a. ocean-ocean coming togetherb. Forms a trench and subduction zone Forms volcanic islandsc. Japan
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2.Convergent Boundarymoving together
a. Continent- continent coming togetherb. Forms mountainsc. Himalayas- Mt. Everest
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2. Convergent Boundarya. Ocean- continentb. Forms a trench and volcanic mountainsc. Washington State and Andes mountains in
South America
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3.Transform boundarysliding past each other
b. Forms earthquakesc. San Andreas Fault in California
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Identify each drawing as divergent, convergent or
transform
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