8.9B Plate Tectonics Mini Flashcard #3

Front

What is plate tectonics?

Back

The theory that explains the movement of the Earth's lithosphere, which is divided into tectonic plates that float on the semi-fluid asthenosphere.

Front

What are tectonic plates?

Back

Large sections of the Earth's lithosphere that move and interact with each other, causing geological phenomena.

Front

What is a convergent plate boundary?

Back

A boundary where two tectonic plates collide, often resulting in mountain formation or subduction.

Front

What is a divergent plate boundary?

Back

A boundary where two tectonic plates move away from each other, often resulting in the formation of mid-ocean ridges.

Front

What is a transform plate boundary?

Back

A boundary where two tectonic plates slide past each other horizontally, often causing earthquakes.

Front

What is subduction?

Back

The process where one tectonic plate moves under another and sinks into the mantle.

Front

What geological feature is formed at a convergent boundary?

Back

Mountains, deep ocean trenches, and volcanic arcs.

Front

What geological feature is formed at a divergent boundary?

Back

Mid-ocean ridges and rift valleys.

Front

What is an earthquake?

Back

A sudden release of energy in the Earth's crust that creates seismic waves.

Front

What is a volcano?

Back

An opening in the Earth's crust through which molten lava, ash, and gases are expelled.