Plate Tectonics

In the mid-1900s, scientists discovered huge, underwater mountain ranges called...

_____________ boundaries form where two tectonic plates collide.

At a divergent plate boundary ____________ occurs.

___________ _________ is a theory that describes large-scale movements of Earth’s lithosphere.

The movement of the plates at tranform boundaries often produce _________________.

The process of plates under the ocean moving away from each other forming new oceanic crust is

A boundary at which two plates move past each other horizontally is called a ________ boundary.

Movement at a subductive convergent plate boundary creates...

At a _____________ boundary, two plates move away from each other.

Movement at a collisional convergent boundary creates....

The theory that the present continents broke up and moved away from a single landmass is called

About 245 million years ago, the continents were joined in a single large landmass called

The lithosphere is divided into pieces called _, which move around on top of the asthenosphere.