Continental Drift, Seafloor Spreading, & Plate Tectonic Theory

The OLDEST seafloor is located? 

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

Tags

NGSS.HS-ESS1-5

When one tectonic plate __________ under another at a convergent boundary it sinks back in the mantle.

• subducts
• falls
• sinks

Tags

NGSS.MS-ESS2-3

New crust is always formed at the...

• mid-ocean ridge
• deep-ocean trench
• asthenosphere

Process by which new ocean lithosphere forms.

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

Tags

NGSS.HS-ESS2-1

Massive pieces of land that are part of the Earth's crust and upper mantle

• Tectonic plates
• Trenches
• Divergent boundary
• Continental shelves

Tags

NGSS.MS-ESS2-3

Which type of crust is more dense and thinner?

• Continental

• Asthenosphere

• Oceanic

• Whole wheat

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

• True
• False

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

What causes the crust to move?

• convection
• conduction
• tension
• radiation

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1

Where would the oldest rock be found?

• L
• M
• N
• O

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS1-4