Plate Tectonics

Front

What is the main theory that explains the movement of Earth's plates?

Back

Plate Tectonics

Front

What type of plate boundary occurs when two plates move away from each other?

Back

Divergent Boundary

Front

What geologic feature is commonly formed at a divergent boundary?

Back

Rift Valley

Front

What drives the movement of tectonic plates?

Back

Convection currents within the mantle

Front

Where are earthquakes and volcanoes most likely to occur?

Back

At plate boundaries

Front

What is a convergent boundary?

Back

A plate boundary where two plates move towards each other, often causing one plate to be forced below the other.

Front

What is a transform boundary?

Back

A plate boundary where two plates slide past each other horizontally.

Front

What is continental drift?

Back

The theory that continents have moved over geological time and were once joined together.

Front

What is seafloor spreading?

Back

The process by which new oceanic crust is formed at mid-ocean ridges and older crust is pushed away.

Front

What is a trench?

Back

A deep, narrow depression in the ocean floor, often formed at convergent boundaries.