Earth's Moving Continents Flashcards

Front

Continental Drift

Back

The idea that Pangaea split apart and the continents move across the earth's surface.

Front

Convergent Boundary

Back

A tectonic boundary where two plates are moving toward each other and collide.

Front

Divergent Boundary

Back

A tectonic boundary where two plates are moving away from each other.

Front

Magma

Back

Molten rock beneath the earth's surface.

Front

Plate Tectonics

Back

A scientific theory that describes the large-scale motion of Earth's continents.

Front

Sea Floor Spreading

Back

The process by which new oceanic crust is formed at mid-ocean ridges and slowly moves away from the ridge.

Front

Pangaea

Back

A supercontinent that existed before breaking apart into the continents we know today.

Front

Subduction

Back

The process by which one tectonic plate moves under another tectonic plate and sinks into the mantle.

Front

Transform Boundary

Back

A tectonic boundary where two plates slide past one another horizontally.