Earth Science Basics

Front

Crust

Back

The Earth's outermost layer, made of rock, forms the surface.

Front

Mantle

Back

The thick layer of hot, solid rock below the Earth's crust.

Front

Core

Back

The Earth's innermost layer, a large sphere of metal.

Front

Tectonic Plates

Back

Sections of Earth's crust that move over the semi-fluid mantle.

Front

Divergent Boundary

Back

An area where two plates move apart.

Front

Convergent Boundary

Back

A region where two plates move toward each other.

Front

Transform Fault

Back

A boundary where two plates slide past one another horizontally.