Seafloor Spreading

What is a mid-ocean ridge?

• mountains created on land

• mountains created under water

• valleys created under water

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Magma rises from the mantle to form...

• new crust at a mid-ocean ridge

• old crust at a mid-ocean ridge

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Where would the oldest rock be found?

• L

• M

• N

• O

Tags

NGSS.MS-ESS1-4

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

• Crust is destroyed at the same time it is created

• New crust is underwater where it sinks

• New crust breaks more easily than old crust

Tags

NGSS.MS-ESS2-1

Which type of plate boundary movement causes mid-ocean ridges?

• convergent

• divergent

• transform

Where does ocean crust subduct under continental crust to be recycled in the mantle?

• mid ocean ridge

• trench

• valley

• volcano

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Where is new rock located on a mid-ocean ridge?

• L

• M

• N

• O

Tags

NGSS.MS-ESS2-1

This can occur at a divergent plate boundary...

• ocean trench

• tall mountains

• mid-ocean ridge

• transform fault

Tags

NGSS.MS-ESS2-3

Where is old rock from the ocean crust recycled?

• core

• mantle

• crust

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-1

What is magma?

• liquid hot, molten rock found in Earth's mantle

• solid, cold rock found in Earth's mantle

• solid rock found at Earth's core

• liquid erupting from a volcano

Tags

NGSS.MS-ESS2-1