Plate Tectonics

Front

What is convection?

Back

Convection is the transfer of heat by the movement of a heated fluid, such as air or water.

Front

What does the theory of continental drift state?

Back

The theory of continental drift states that the continents were once joined in a super-continent and have moved over time.

Front

Who proposed the theory of Continental Drift?

Back

Alfred Wegener proposed the theory of Continental Drift.

Front

What is the lower mantle?

Back

The lower mantle is a solid material that extends all the way to Earth’s core.

Front

What is a convergent boundary?

Back

A convergent boundary is the place where two tectonic plates come together.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

What is the asthenosphere?

Back

The asthenosphere is a semi-fluid layer of the mantle on which the lithosphere floats.

Front

What is a transform boundary?

Back

A transform boundary is where two tectonic plates slide past each other horizontally.

Front

What is a divergent boundary?

Back

A divergent boundary is where two tectonic plates move away from each other.

Front

What is the mid-ocean ridge?

Back

The mid-ocean ridge is an underwater mountain range formed by plate tectonics.