Plate Tectonics

Front

What is the motion of Earth's plates like?

Back

slow and constant

Front

Which theory explains that Earth's outer layer is broken into large slowly moving pieces?

Back

Plate Tectonic Theory

Front

What type of boundary creates trenches, deep underwater canyons on the sea floor?

Back

Convergent, Subduction Zone

Front

What was the name of the supercontinent that existed millions of years ago?

Back

Pangea

Front

What is the place where two plates come together called?

Back

convergent boundary.

Front

What type of boundary occurs when two tectonic plates move apart?

Back

divergent boundary.

Front

What is the term for the process where new oceanic crust is formed at mid-ocean ridges?

Back

sea-floor spreading.

Front

What geological feature is formed at a transform boundary?

Back

fault lines.

Front

What is the name of the theory that describes the movement of continents over geological time?

Back

Continental Drift.

Front

What type of plate boundary is associated with earthquakes?

Back

transform boundary.