Geology - CH 2

They move because of heat and pressure in the mantle.

These huge, rocky slabs are called tectonic plates.

All that pressure forces the plates to move as well—very, very slowly.

Plate boundaries are where two or more tectonic plates meet.

The earthquake shook us until we all fell to the ground.

The shivering earthquake quivers like an icy morning in the winter.

An earthquake is a wrestler violently slamming on the floor.

The earthquake booms in the quiet night.