Mid Ocean Ridges

Which process adds more crust to the ocean floor?

• suction

• sea-floor spreading

• subduction

• magnetic stripe

Molten material erupts inside the Central Valley of mid-ocean ridges.

• True

• False

Tags

NGSS.MS-ESS2-3

the farther from a mid-ocean ridge a rock sample is taken, the younger the rock is.

• True

• False

Tags

NGSS.MS-ESS1-4

The pattern of magnetic stripes in rocks on either side of the mid-ocean ridge is the same.

• True

• False

Tags

NGSS.MS-ESS2-3

The youngest rocks on the ocean floor are located ____.

• near continents

• at mid-ocean ridges

• far from mid-ocean ridges

• near Asia

Tags

NGSS.MS-ESS2-1

New ocean crust is continually formed at ____.

• mid-ocean ridges

• trenches

• subduction zones

• ocean basins

What are mid-ocean ridges?

• Vast mountain ranges deep below the ocean's surface

• Deep underwater troughs on the seafloor

• The process by which new oceanic crust is continuously formed and destroyed

• molten rock below Earth's surface

Tags

NGSS.MS-ESS2-3

What are mid-ocean ridges?

• Vast mountain ranges deep below the ocean's surface

• Deep underwater troughs on the seafloor

• The process by which new oceanic crust is continuously formed and destroyed

• molten rock below Earth's surface

Tags

NGSS.MS-ESS2-1

Which of the following best explains the age of oceanic crust and ocean-floor features?

• seafloor spreading

• continental drift

• subduction

• crystallization

Tags

NGSS.MS-ESS2-3

What is seafloor spreading?

• Vast mountain ranges deep below the ocean's surface

• Deep underwater troughs on the seafloor

• The process by which new oceanic crust is continuously formed and destroyed

• molten rock below Earth's surface

Tags

NGSS.MS-ESS2-1