Plate Tectonics

Front

What type of crust is more dense, oceanic or continental?

Back

Oceanic crust is more dense than continental crust.

Front

What is the process called where hot molten rock rises, cools, and then sinks back to the core?

Back

This process is called convection.

Front

What geological feature occurs at a divergent boundary?

Back

A rift valley occurs at a divergent boundary.

Front

What is the term for the place where two tectonic plates meet?

Back

The term is plate boundary.

Front

What geological formation is created at a divergent boundary between two oceanic plates?

Back

A mid-ocean ridge is formed at a divergent boundary between two oceanic plates.

Front

What are the three main types of plate boundaries?

Back

The three main types of plate boundaries are divergent, convergent, and transform boundaries.

Front

What happens at a convergent boundary?

Back

At a convergent boundary, two tectonic plates move towards each other, which can result in subduction or mountain formation.

Front

What is subduction?

Back

Subduction is the process where one tectonic plate moves under another and is forced into the mantle.

Front

What geological feature is commonly formed at a convergent boundary where an oceanic plate meets a continental plate?

Back

A trench is commonly formed at this type of convergent boundary.

Front

What is the significance of the mid-ocean ridge?

Back

The mid-ocean ridge is significant as it is a site of seafloor spreading and new oceanic crust formation.