Unit 05: Investigating Plate Tectonics

Front

Continental drift theory

Back

The hypothesis that the Earth’s continents were once one large landmass and have moved over geologic time relative to each other.

Front

Convergent boundaries

Back

Plate boundaries where the plates are moving toward each other.

Front

Divergent boundaries

Back

Plate boundaries where the plates are moving apart.

Front

Fossil

Back

The impression of a prehistoric organism preserved in rock.

Front

Plate tectonics

Back

Earth's surface is broken into large pieces called plates that are constantly moving and changing at a very slow rate.

Front

Superposition (law of)

Back

Each rock layer is older than the one above it.

Front

Transform boundaries

Back

Plate boundaries where the plates are moving past each other in different directions.