Plate Tectonics

Based on evidence from land features, fossils and climate, Wegener concluded that continents

• sink

• rise

• move

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NGSS.MS-ESS2-3

All of the continents were joined together in a supercontinent that Wegener called

• Pangaea

• Gondwanaland

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NGSS.MS-ESS2-3

In sea-floor spreading, new crust is added at a

• mid-ocean ridge

• magnetic stripe

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NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Subduction takes place at

• mid-ocean ridges

• deep-ocean trenches

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

Which features form the longest mountain ranges on Earth?

• the mid-ocean ridges

• the deep-ocean trenches

• the Rockies

• the Andes

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Which process adds more crust to the ocean floor?

• suction

• sea-floor spreading

• subduction

• magnetic strip

Where does subduction occur?

• along the middle of the ocean floors

• down the middle of the mountain ranges

• on continents

• at deep-ocean trenches

Tags

NGSS.MS-ESS2-3

Which process or processes change the size and shape of the oceans?

• subduction only

• sea-floor spreading only

• both subduction and sea-floor spreading

• both drilling for samples and subduction

Tags

NGSS.MS-ESS2-3

Which theory describes the motion of and force driving Earth's plates?

• first law of motion

• third law of motion

• continental drift

• plate tectonics

Tags

NGSS.MS-ESS2-3

What is the motion of Earth's plates like?

• fast and in stages

• slow and in stages

• fast and constant

• slow and constant

Tags

NGSS.MS-ESS2-3