Unit 4A Review: Plate Tectonics

Which two parts of the Earth make up the lithosphere?

• inner core and outer core

• mantle and outer core

• inner core and mantle

• crust and outer part of the mantle

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NGSS.MS-ESS2-1

Which part of the mantle is still a solid but flows like a thick, heavy liquid?

• asthenosphere

• lithosphere

• crust

• core

Which evidence did Wegener make use of to develop the theory of continental drift?

• Similar fossils were found on different continents.

• The climate of Siberia has always been the same.

• The Rocky Mountains are taller than the Appalachian Mountains.

• There is no evidence of glaciers anywhere in South America.

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NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Alfred Wegener's theory about Earth's past included a supercontinent made up of all the continents put together.

Which word named the supercontinent?

• Gondwanaland

• Pangaea

• Laurasia

• Americas

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NGSS.MS-ESS1-4

Which term is described as a flat expanse of ocean floor?

• continental shelf

• abyssal plains

• deep-sea trenches

• guyots

Which term is described as a seamount with a flattened top?

• continental shelf

• abyssal plains

• deep-sea trenches

• guyots

Which phrase gives two processes scientists think move the Earth's lithospheric plates?

• gravity acting on the edges of plates and friction between the plate and the asthenosphere

• friction between the plate and the asthenosphere and pressure of magma on the edge of the plate

• gravity acting on the edges of plates and convection in the mantle

• convection in the mantle and pressure of magma on the edge of the plate

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NGSS.MS-ESS2-3

What activates a convection current, starting the flow of a fluid?

• cold temperatures at the north pole

• heated liquids at Earth’s surface

• iron-rich rocks in the mantle

• temperature differences in the mantle

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NGSS.MS-ESS2-6

At which type of boundary do lithospheric plates collide?

• gravitational boundaries

• contour boundaries

• convergent boundaries

• convection boundaries

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NGSS.MS-ESS2-3

According to the theory of plate tectonics, how do two plates interact to form Earth's largest mountain ranges?

• create new plates

• collide

• scrape past each other

• move apart

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NGSS.HS-ESS1-5

NGSS.HS-ESS2-1