OST Review Plate Tectonics

What are the mechanisms that have been proposed to explain the movement of Earth’s tectonic plates?

• slab pull and sea-floor spreading

• mantle convection and continental drift

• sea-floor spreading and continental drift

• mantle convection and slab pull

Tags

NGSS.MS-ESS2-3

Which statement shows the correct description of a tectonic plate boundary?

• At a divergent boundary, plates separate

• At a transform boundary, plates move apart

• At a convergent boundary, plates slide past each other

• At a divergent boundary, one plate sinks under another plate

Tags

NGSS.MS-ESS2-3

The movement of tectonic plates is so slow and gradual that you cannot see or feel them moving. The average motion is centimeters/year. What do scientists depend on to verify tectonic plate motion?

• fossils

• cameras in the mantle

• satellites & GPS

• continental drift

Tags

NGSS.HS-ESS1-5

Identify this type of plate movement

• divergent

• continent-continent convergent

• transform

• ocean-ocean convergent

Tags

NGSS.MS-ESS2-3

Plates can be made of continental crust, oceanic crust, or a combination of the two. Besides their locations, how are these two kinds of crust different?

• Continental crust is thinner than oceanic crust

• Continental crust is thicker than oceanic crust

• Plates made of continental crust are larger than plates made of oceanic crust

• Plates made of continental crust are smaller than plates made of oceanic crust

  The lithospheric plates consist of

• crust and upper mantle

• upper mantle & lower mantle

• crust only

• lower mantle & core

Identify this type of plate movement

• divergent

• ocean-continent convergent

• transform

• ocean-ocean convergent

Tags

NGSS.MS-ESS2-3

Plates move around on top of the

• lithosphere

• asthenosphere

• core

• ocean

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

Wegener hypothesized that 330 million years ago, all of the continents were once a large landmass called

• Laurasia

• Asia

• Pangea

• Gondwana

The diagram shows some of Earth’s tectonic plates. The arrows indicate the directions in which some of these plates are moving. According to this map, where can you infer that folded mountains are being formed?

• between the Pacific and Australian plates

• between the African and South American plates

• between the Indian and Eurasian plates

• between the Pacific and Antarctic plates

Tags

NGSS.MS-ESS2-2