OAT Rewind #6: Plate Tectonics

Front

The part of the earth that includes the crust and the upper mantle and is split into tectonic plates is the

Back

lithosphere

Front

Supporting Evidence: discovery of Mid-Atlantic Ridge, core rock samples showing older rocks the farther that you get from the mid ocean ridge

Back

Seafloor Spreading

Front

The theory stating the continents were once joined in a large mass that broke apart.

Back

Continental Drift

Front

The process for new oceanic lithosphere forming at mid ocean ridges

Back

Seafloor Spreading

Front

The theory that states that the Earth is divided into plates that float and move in slow, constant motion.

Back

Plate Tectonics

Front

The Mid-Atlantic Ridge is formed at this boundary.

Back

Divergent

Front

Where would the oldest rock be found?

Back

O

Front

The tectonic plates float on the 

Back

asthenosphere

Front

Trenches are formed at what type of boundary? Options: Transform: Oceanic-Continental, Divergent: Continental-Continental, Convergent: Oceanic-Oceanic, Divergent: Oceanic-Oceanic

Back

Convergent: Oceanic-Oceanic

Front

How is it possible for new crust to be formed without increasing the surface area of the Earth?

Back

Crust is destroyed at the same time it is created