Plate Tectonics

The idea that continents were once part of a single landmass that broke apart and

moved

• Continental Drift

• Tectonic Plates

• Transform

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Forms where plates are moving away from each other

• Divergent-

• Convergent-

• Transform-

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Formed where two sections of Earth’s crust are colliding

• Divergent-

• Convergent-

• Transform-

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The land mass where all of the continents were once together in one large continent is called ________________.

• Laurasia.

• Pangaea.

• Eurasia.

• Gondwana.

Tectonic plates consist of

• continental crust.

• mesosphere.

• both continental and oceanic crust.

• oceanic crust.

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NGSS.MS-ESS2-3

The fact that similar fossils are found on both sides of the ocean is evidence of

• magnetic reversal.

• global positioning.

• continental drift.

• oceanic drift.

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The movement of the tectonic plates is caused by

• the rotation of the Earth.

• convection currents in the Asthenosphere

• the gravity of the iron-nickel core.

• the Moho discontinuity.

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Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that

• the oceanic crust is melting.

• the denser ceanic crust is subducting under the less dense oceanic crust

• volcanic islands are forming.

• the tectonic plates are moving away from each other.

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NGSS.HS-ESS1-5

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Most geologists think that the movement of Earth’s plates is caused by _______

• convection.

• continental drift.

• subduction.

• conduction.

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What are the two types of crust

• continental and oceanic
• ocean and upper
• lower and upper
• pizza and subway

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