Tectonic plates

Front

What are divergent Plate Boundaries?

Back

Where two plates divide.

Front

What is Pangaea?

Back

Huge supercontinent that existed millions of years ago.

Front

What are Convergent Plate Boundaries?

Back

Where two plates collide.

Front

What is continental drift?

Back

Theory that all of Earth's continents were once joined together in a single, huge land mass and then started drifting away from each other.

Front

What is subduction?

Back

Where one tectonic plate sinks below another.

Front

What is a tectonic plate?

Back

Large sections of the Earth's lithosphere that move and interact with each other.

Front

What is the lithosphere?

Back

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

Front

What is the asthenosphere?

Back

The semi-fluid layer of the mantle beneath the lithosphere that allows tectonic plates to move.

Front

What is a transform Plate Boundary?

Back

Where two plates slide past each other.

Front

What is an earthquake?

Back

A sudden release of energy in the Earth's crust that creates seismic waves.