Seafloor Spreading and Continental Drift

Match the following

• Continental Drift

• The scientist who proposed the theory of Continental Drift

• Seafloor spreading

• The theory that states that Earth's plates have gradually moved over time.

• Alfred Wegener

• The supercontinent that existed approximately 335 million years ago.

• Pangaea

• The process by which new oceanic crust Is created by the rising of magma of a mid-ocean ridge.

• mid-oceanic ridge

• A chain of underwater mountains formed from seafloor spreading.

Tags

NGSS.MS-ESS2-3

Who was the scientist that proposed the theory of seafloor spreading

• Albert Einstein

• Harry Hess

• Alfred Wegener

• Marco Polo

Tags

NGSS.MS-ESS2-3

What were 2 kinds of evidence were used to prove that the seafloor spread?

• rock formations, WWII shipwrecks

• magnetic seafloor stripes, WWII ship logs

• magnetic seafloor stripes, age of rocks

Process by which new ocean crust forms.

• Seafloor spreading

• Continental drift

• Mid-ocean ridge

• Rift

The zone where one plate slides under another is called the

• Convergent zone
• Subduction zone
• Transform zone
• Mantle zone

The OLDEST seafloor is located? 

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

Tags

NGSS.MS-ESS2-3

Sea-floor spreading begins at the

• Deep ocean trench

• Mid-ocean ridge

• Continent's edge

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

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

What is this a picture of?

• Eurasia

• Laurasia

• Pangaea

• Cornucopia

Tags

NGSS.MS-ESS2-3

The youngest seafloor crust is located...

• Farthest from the mid-ocean ridges

• Closest to the mid ocean ridges

• Nearest the continents

• On the land