Which statement is true according to the theory of plate tectonics?

Continents drift because they rest on lithospheric plates that move.

Lithospheric plates are destroyed at the mid-ocean ridges.

Lithospheric plates move because the inner core of the Earth is liquid.

Transform boundaries form when two lithospheric plates collide.

Where do earthquakes most likely occur?

the interior of an oceanic crust plate

boundary between the core and mantle

In 1912, Alfred Wegener proposed the theory of continental drift, stating that all the continents were once joined together and slowly moved apart. However, his theory was not widely accepted in his time. In 1962, the discovery of sea floor spreading (sea floor being forced apart by the formation of new crust) eventually led to a more modern and widely accepted theory of plate tectonics. Why did the theory of plate tectonics improve upon Wegener’s theory of continental drift?

The theory of plate tectonics was a more complete theory because it provided a reason and mechanism for why the plates and continents moved.

The theory of plate tectonics was a less complete theory because it failed to provide complete reasons and mechanisms for why the plates and continents moved.

The theory of plate tectonics was a more complete theory because it failed to provide reasons and mechanisms for why the plates and continents moved.

The theory of plate tectonics was a less complete theory because it provided a reason and mechanism for why the plates and continents moved.

How do rock samples collected from the sea floor provide evidence of tectonic plate movement?

Older rocks are found near the deep-ocean trenches.

Older rocks are near the center of mid-ocean ridges.

Younger rocks are near the deep-ocean trenches.

Younger rocks are mixed with older rocks at mid-ocean ridges.

Which statement is true about the Earth's crust?

Earth's crust is thinnest under oceans.

Earth's crust is uniform in thickness.

Earth's crust is thinner under the poles and thicker at the equator.

Earth's crust is thinnest under mountainous regions.

Which statement is true about subduction zones?

They always occur at convergent plate boundaries.

They occur when a less dense plate is pushed below a more dense oceanic plate.

They result in mountains formed when two continental plates collide.

They always result in sea-floor spreading.

What happens when oceanic crust subducts beneath continental crust?

An on-shore volcanic arc and an ocean trench will form.

A volcanic island arc and an ocean trench will form.

A non-volcanic mountain range will form.

A student prepares a model to show a convergent boundary between two plates, A and B. What would happen if Plate A is a continental plate, and Plate B is an oceanic plate?

Plate B would subduct beneath Plate A, forming a deep trench.

Plate A would subduct beneath Plate B, forming an oceanic volcano.

Plates A and B would collide, forming an oceanic ridge and a volcanic arc.

Plates A and B would thrust rocks upward, forming a fold mountain.

The diagram shows a type of tectonic plate boundary. What type of plate boundary is shown?

oceanic-continental convergent plate boundary

oceanic-oceanic divergent plate boundary

continental-continental divergent plate boundary

continental-continental convergent plate boundary

Which statement describes in detail the process of creating mountains?

Two continental plates of equal density collide into each other at a convergent boundary crumpling and crushing under the pressure and folding upward creating jaded rock formations over the course of millions of years.

An oceanic plate collides with a continental plate pushing at a convergent boundary pushing both plates upward in to jagged rock formations.

Two continental plates of equal density collide into each other at a convergent boundary crumpling and crushing under the pressure and folding upward creating jaded rock formations.

Two continental plates of equal density collide into each other at a divergent boundary crumpling and crushing under the pressure and folding upward creating jaded rock formations

Which statement describes in detail the process of seafloor spreading?

Two oceanic plates at a divergent boundary are pushed away from each other by rising magma that fills in the rift valley creating mid-oceanic ridges and new seafloor over the course of millions of years.

Two oceanic plates of equal density collide into each other at a divergent boundary pushing away from each other as the seafloor spreads.

One oceanic plate and one continental plate at a divergent boundary are pushed away from each other by rising magma that fills in the rift valley creating mid-oceanic ridges, thereby creating new seafloor

Two oceanic plates at a divergent boundary are pushed away from each other by rising magma that fills in the rift valley creating mid-oceanic ridges, thereby creating new seafloor.

Which statement describes in detail the geoscience processes that created the San Andreas Fault?

Two continental plates of equal dencity grind past each other at a transform plate boundary, neither creating nor destroying any landforms, rather creating folds and ripples in the land that look like a series of smaller hills next to the fault line.

Two continental plates of equal density grind past each other at a convergent boundary, neither creating nor destroying any landforms rather creating folds and ripples in the land that look like a series of smaller hills next to the fault line

Two continental plates of equal density collide into each other at a convergent boundary crumpling and crushing under the pressure and folding creating jaded rock formations over millions of years.

Two continental plates of grind past each other at a transform plate boundary creating mountains and a rift valley along the fault line.

Plate Tectonics

Authored by Barkley Mapes

Science

7th - 8th Grade

NGSS covered

Used 16+ times

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

When comparing the lithosphere to the asthenosphere, which statement is correct?

The asthenosphere is part of the crust, and the lithosphere is part of the mantle.

The lithosphere is a layer of flowing hot magma that supports the solid thin layer of the asthenosphere.

The lithosphere is brittle and rigid, and the asthenosphere is plastic-like and flowing.

The asthenosphere is a thin layer that sits on top of the lithosphere.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement is true regarding the movement of the continents on the opposite sides of the Atlantic Ocean?

They are drifting closer together.

They have remained the same distance apart.

They drifted further apart and then drifted closer together.

They are drifting farther apart.

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What causes the Earth's crustal plates to move?

convection currents in the Earth's mantle

revolution of the Earth around the Sun

volcanism within the Earth's lithosphere

the rotation of the Earth on its axis

Tags

NGSS.MS-ESS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which layer of the Earth is described as "plastic and flowing"?

asthenosphere

atmosphere

lithosphere

troposphere

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When parts of the upper mantle collide with each other, the force causes changes on the surface like volcanoes and fractures. Why does the collision not impact the asthenosphere?

The asthenosphere is plastic and brittle.

The asthenosphere is plastic and flowing.

The asthenosphere is rigid and flowing.

The asthenosphere is rigid and brittle.

Tags

NGSS.MS-ESS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement is supported by the Theory of Continental Drift?

Present-day continents of South America and Africa are moving toward each other.

Continents move due to changes in the Earth's orbit around the Sun.

Present-day continents of South America and Africa once fit together like a jigsaw puzzle.

Continents move due to changes in the tilt of the Earth's axis.

Tags

NGSS.MS-ESS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where does most present-day faulting of rock occur?

crustal plate boundaries

interior areas of continental crustal plates

polar regions of the Earth

interior areas of oceanic crustal plates

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Plate Tectonics

When comparing the lithosphere to the asthenosphere, which statement is correct?

Which statement is true regarding the movement of the continents on the opposite sides of the Atlantic Ocean?

What causes the Earth's crustal plates to move?

Which layer of the Earth is described as "plastic and flowing"?

When parts of the upper mantle collide with each other, the force causes changes on the surface like volcanoes and fractures. Why does the collision not impact the asthenosphere?

Which statement is supported by the Theory of Continental Drift?

Where does most present-day faulting of rock occur?

Which statement is true according to the theory of plate tectonics?

The continents on Earth today are not in the same location as they were 300 million years ago. What concept provides the best explanation for the drifting of the continents?

Geologists believe that millions of years ago all the continents were united and formed which supercontinent?

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