Forces that Change the Earth Vocab

Front

Plate boundary where two plates move past each other.

Back

Transform

Front

Hypothesis that continents were once a single landmass and drifted to current locations.

Back

continental drift

Front

Theory that Earth's surface is divided into moving plates.

Back

plate tectonics

Front

One plate going under another

Back

subduction

Front

Plate boundary where two plates move toward each other

Back

Convergent

Front

Plate boundary where two plates move apart

Back

Divergent

Front

Ancient supercontinent forming today's continents

Back

Pangaea

Front

Maps using contour lines for constant elevations

Back

topographic map

Front

Description of land surface features.

Back

Topography

Front

Difference in elevation between contour lines.

Back

Contour Interval