SeaFloor Spreading

In the Atlantic ocean, where is the youngest seafloor located?

• Towards the edges, near the eastern and western continents
• Towards the middle of the ocean
• Towards the north and south poles
• Young seafloor is located randomly throughout the ocean

Tags

NGSS.MS-ESS2-3

What two words are BEST used to describe how the seafloor spreads?

• Magma and convection
• Earthquakes and convection
• Magma and convention
• Volcanoes and earthquakes

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

True or False: Our continents will eventually become a supercontinent (like Pangaea) again, far in the future

• True
• False

Tags

NGSS.HS-ESS1-5

Process by which new ocean crust forms.

• Seafloor spreading

• Continental drift

• Mid-ocean ridge

• Rift

Undersea mountain range.

• Rift
• Mid-ocean ridge
• seafloor spreading
• Continental drift

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1

The OLDEST seafloor is located? 

• Closest to the mid-ocean ridge
• Farthest from the mid-ocean ridge

Why does oceanic crust sink below the continental crust during subduction

• oceanic crust is less dense

• oceanic crust is more dense

• oceanic crust is older

• oceanic crust is warmer

Tags

NGSS.HS-ESS1-5

In sea-floor spreading, molten material rises from the mantle and erupts

• in deep-ocean trenches

• along the edges of all the continents

• along mid-ocean ridges

• at the north and south plate

Tags

NGSS.MS-ESS2-1

What kind of plate boundary is shown on the picture?

• divergent

• convergent

• transform

• trench

Tags

NGSS.MS-ESS2-3

Which of the following supports the theory of seafloor spreading?

• Correlation of rock layers
• Crustal Age
• Magnetic Reversal
• Continuous Mountain Chains

Tags

NGSS.MS-ESS2-3