Plate Techtonics Review

What is the Theory of Continental Drift?

• Earth's continents do not move.

• Earth's continents moved in the past and continue moving today.

• Earth's continents will eventually fall off the planet.

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NGSS.MS-ESS2-2

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What is the process of magma pushing up through a mid-ocean ridge, forming new crust, and pushing continents apart called?

• seafloor spreading

• seafloor growing

• volcanic volleyball

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NGSS.MS-ESS2-2

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What is the process of magma in the mantle rising and cooling and sinking and warming that causes the continents to move?

• a tiny mouse running on a wheel

• magma wheel

• convection currents

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NGSS.MS-ESS2-3

In what layer of Earth do convection currents happen?

• crust

• mantle

• outer core

• inner core

TRUE or FALSE

North America and Europe are moving closer together.

• TRUE

• FALSE

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NGSS.MS-ESS2-3

What are the two types of crust?

• continental and oceanic
• ocean and basin
• lower and upper
• thick and thin

What drives tectonic plate movement? 

• gravity
• coriolis effect
• convection currents
• the earth's magnetic core

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NGSS.MS-ESS2-3

According to Wegener's hypothesis of continental drift, 

• Earth's surface is made up of seven major landmasses
• the continents DO NOT move
• Earth is slowly cooling and shrinking
• the continents were once joined together in a single landmass

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NGSS.MS-ESS2-3

In Seafloor Spreading, molten material rises from the mantle and erupts or flows out 

• along the edges of all the continents
• along mid-ocean ridges
• in the deep ocean trenches
• in the north and south poles

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Investigation of seafloor spreading showed what about the age of the seafloor?

• the oldest seafloor is at the ridge
• youngest seafloor is destroyed at the ridge
• youngest seafloor is farthest from the ridge
• oldest seafloor is farthest from the ridge

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NGSS.MS-ESS1-4