Plate Tectonics

Front

What is the solid material extending all the way to Earth’s core?

Back

Lower mantle.

Front

What type of evidence comes from rock samples drilled from deep inside Earth?

Back

Direct evidence.

Front

What is the uppermost part of the mantle and the bottom layer of the crust called?

Back

Lithosphere.

Front

What is the transfer of heat by the movement of a heated fluid?

Back

Convection.

Front

What does the theory of continental drift state?

Back

The continents were once joined in a super-continent and have moved over time.

Front

What is the layer of Earth that is made up of the crust and the uppermost part of the mantle?

Back

Lithosphere.

Front

What is the semi-fluid layer beneath the lithosphere called?

Back

Asthenosphere.

Front

What is the process by which tectonic plates move due to convection currents in the mantle?

Back

Plate tectonics.

Front

What geological feature is formed at divergent boundaries?

Back

Mid-ocean ridges.

Front

What is the term for the boundary where two tectonic plates collide?

Back

Convergent boundary.