Plate Tectonics: Move that Crust!

Which feature would most likely be forming at converging continental tectonic plate boundaries?

• rift valley

• deep trench

• volcanic cone

• folded mountain

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NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

Which of the following is the best evidence that Earth’s continents were once in vastly different positions than they are today?

• Penguins are found only in the Southern Hemisphere.

• Fossils of tropical plants are found in Antarctica.

• Volcanoes encircle the Pacific Ocean.

• Major rivers form deltas from continental erosion.

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

3. A rift valley is evidence of which kind of plate boundary?

• convergent

• divergent

• transform

• uniform

Which of the following is most responsible for the formation of new crust at the edge of a tectonic plate?

• mountain building at a continent-continent convergent boundary

• magma rising up from the mantle at a divergent boundary

• two tectonic plates sliding past one another at a transform boundary

• subduction of one oceanic plate under another at a convergent boundary

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NGSS.MS-ESS2-1

Which of these is an immediate result of the movement of tectonic plates?

• ocean currents

• earthquakes

• glaciers

• tides

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NGSS.MS-ESS3-2

Which process explains why less dense, hot magma rises to the surface to displace more dense, cooler magma?

• conductin

• diffusion

• radiation

• convection

Which of these describes the outcome of the collision between oceanic and continental crust?

• The two portions of crust will stop moving.

• The continental crust will subduct beneath the oceanic crust.

• The two portions of crust will slide past one another, side by side.

• The oceanic crust will subduct beneath the continental crust.

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

The Mid-Atlantic Ridge exists between the African and South American geologic plates. Which process most often occurs at the Mid-Atlantic Ridge?

• destruction of underwater mountains

• creation of new continents

• subduction of geologic plates

• spreading of sea floor

New crust is being produced at a mid-ocean ridge, but the Earth’s size remains the same, why?

• The total amount of crust is always increasing.

• The new crust is denser than older crust.

• The total amount of crust is always decreasing.

• The older crust is recycled at subduction zones.

Tags

NGSS.MS-ESS2-1

Which features are commonly formed at the plate boundaries where continental crust converges with oceanic crust?

• large volcanic mountain ranges parallel to the coast at the center of the continents

• a deep ocean trench and a continental volcanic mountain range near the coast

• an underwater volcanic mountain range and rift valley on the ocean ridge near the coast

• long chains of mid-ocean volcanic islands perpendicular to the coast