Plate Tectonics and Rock Cycling Practice 1

Front

What layer of the Earth is liquid and generates a magnetic field?

Back

Outer Core

Front

Which type of crust is the densest?

Back

Oceanic crust

Front

What ocean floor feature occurs in the middle of the image as the plates diverge?

Back

The mid-ocean ridge

Front

Continental crust is largely made of what type of rock?

Back

Light granite rock

Front

What is a key difference between oceanic and continental crust?

Back

Continental crust is thicker.

Front

What is the outermost layer of the Earth called?

Back

Crust

Front

What is the layer beneath the crust that is semi-solid and allows for tectonic movement?

Back

Mantle

Front

What geological process occurs at convergent boundaries?

Back

Subduction and mountain building.

Front

What is the term for the movement of tectonic plates?

Back

Plate tectonics

Front

What is the primary composition of oceanic crust?

Back

Dense basalt rock.