Convection and Seafloor Spreading

What causes the crust to move?

• convection
• conduction
• tension
• radiation

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1

Undersea mountain range.

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

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

Process by which new ocean crust forms.

• Seafloor spreading

• Continental drift

• Mid-ocean ridge

• Rift

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

The OLDEST seafloor is located? 

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

Tags

NGSS.HS-ESS1-5

True or False : Sea-floor Spreading adds new material to the ocean floor?

• True
• False

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

The entire cycle of heating occurring in the mantle is called

• Convection currents
• Compound currents
• heat currents
•  subcurrents

Tags

NGSS.MS-ESS2-1

This scientist was the first to propose seafloor spreading

• William Watts

• Harry Hess

• Alfred Wegener

• Tenzing Norgay

Tags

NGSS.MS-ESS2-3

Rock at the mid ocean ridges...

• is the oldest rock on the earth.

• is older than continental rock.

• is younger than continental rock.

Tags

NGSS.MS-ESS1-4

Which of the following does NOT support the theory of seafloor spreading?

• pillow shaped rocks show that magma seeps into the ocean at divergent plate boundary

• oldest rocks are farthest away from the mid-ocean ridge and youngest rocks are at the ridge

• magnetic reversals recorded in the ocean crust match up together on each side of the mid-ocean ridge

• the youngest rocks are farthest away from the mid-ocean ridge and the oldest are at the ridge

Tags

NGSS.MS-ESS2-3

Heat transfer by convection is caused by differences in what two things:

• Thickness and material

• Weight and electricity

• Temperature and density

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4