Types of plate boundaries

Front

What type of plate boundary occurs when tectonic plates move apart?

Back

Divergent boundary.

Front

What is the process called when one tectonic plate slides under another?

Back

Subduction.

Front

What type of plate boundary is characterized by plates sliding past each other?

Back

Transform boundary.

Front

What type of plate boundary is formed when two plates collide?

Back

Convergent boundary.

Front

What geological features are commonly formed at divergent boundaries?

Back

Mid-ocean ridges.

Front

What geological features are commonly formed at convergent boundaries?

Back

Mountains and deep ocean trenches.

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 beneath the lithosphere that allows tectonic plates to move.

Front

What is continental drift?

Back

The theory that continents have moved over geological time and were once joined together.

Front

What is a fault?

Back

A fracture in the Earth's crust where blocks of land have moved past each other.