Vocab flashcard 13

Front

Underwater mountain chain forming new ocean floor

Back

mid-ocean ridge

Front

Source of new oceanic crust at mid-ocean ridge:

Back

Sea-Floor Spreading

Front

A deep ocean floor valley where oceanic crust sinks toward the mantle.

Back

Deep-ocean trench

Front

Magnetic reversal

Back

Switch in Earth's magnetic field: magnetic north becomes south and vice versa.

Front

Speed of an object in a direction.

Back

velocity

Front

Travels through solids, moving ground up/down or side to side.

Back

Secondary waves

Front

Definition of convection currents?

Back

Movement of warm/cool fluids due to temperature differences; warm rises, cool sinks.

Front

Newton's First Law

Back

An object at rest stays at rest, and an object in motion stays in motion.

Front

What is Pangaea?

Back

Supercontinent that existed in Earth's distant past.

Front

Theory of Continental Drift: Pangaea broke apart and continents drifted away.

Back

True