Which correctly describes crust on the ocean floor?

• The new crust is at subduction zones and the crust gets older the farther away you get from subduction zones.

• The new crust is at mid-ocean ridges and the crust gets older the farther away you get from mid-ocean ridges.

• The old crust is at mid-ocean ridges and the crust gets younger the farther away you get from mid-ocean ridges.

The movement of sediment from one place to another.

• weathering

• erosion

• deposition

Tags

NGSS.MS-ESS2-2

The dropping of sediment into a new location

• weathering

• erosion

• deposition

The breaking down of rock into smaller pieces called sediment.

• weathering

• erosion

• deposition

Where does the energy to move plates for plate tectonics come from?

• the Sun

• the core and the mantle

• the wind currents

• the ocean currents

Tags

NGSS.MS-ESS2-3

Where the river makes a sharp bend to the right, there is a beautiful sandbar. We sometimes can find fossil turtle shells partially buried in this sand.

• weathering

• erosion

• deposition

The driveway is long and winding because it bends around a huge old oak tree. The pavement near the tree bulges upward and has many more cracks than the other sections of the driveway.

• weathering

• erosion

• deposition

Tags

NGSS.MS-ESS2-2

How is it possible for new crust to be formed during seafloor spreading without increasing the surface area of the Earth?

• New crust is underwater where it sinks.

• New crust breaks apart more easily than old crust.

• Old crust is destroyed at subducting convergent plate boundaries.

This image shows a model of seafloor spreading.  Where would the oldest rock be found?

• L

• M

• N

• O

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

This image shows a model of seafloor spreading.  Where would the youngest rock be found?

• L

• M

• N

• O

Tags

NGSS.MS-ESS2-3