Plate Tectonics & Landforms

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 the two types of crust?

Back

Continental crust and oceanic crust.

Front

What is a Divergent Boundary?

Back

A tectonic boundary where two plates move away from each other, allowing new crust to form.

Front

What is a Convergent Boundary?

Back

A tectonic boundary where two plates collide, often leading to the formation of mountains or subduction zones.

Front

What is a Transform Boundary?

Back

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

Front

How is new crust formed?

Back

New crust is formed at divergent boundaries where magma rises to the surface as tectonic plates pull apart.

Front

What happens at a subduction zone?

Back

One tectonic plate is pushed under another, leading to volcanic activity and the formation of mountain ranges.

Front

What are the main features of oceanic crust?

Back

Thinner, denser, and primarily composed of basalt.

Front

What are the main features of continental crust?

Back

Thicker, less dense, and primarily composed of granite.

Front

What is the Ring of Fire?

Back

A major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur.