Plate Tectonics

Front

What is plate tectonics?

Back

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

Front

What are the two types of Earth's crust?

Back

Oceanic crust and continental crust.

Front

Which type of crust is more dense?

Back

Oceanic crust is more dense than continental crust.

Front

What is a transform boundary?

Back

A type of tectonic boundary where two plates slide past each other, causing earthquakes.

Front

What is a converging boundary?

Back

A tectonic boundary where two plates move towards each other, often forming mountains or causing subduction.

Front

What is a diverging boundary?

Back

A tectonic boundary where two plates move apart, leading to the formation of new crust, such as mid-ocean ridges.

Front

What geologic process formed the Himalayas?

Back

The Himalayas were formed by the convergence of two continental plates.

Front

What causes Earth's tectonic plates to move?

Back

Tectonic plates move due to convection currents in the mantle.

Front

What is subduction?

Back

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

Front

What is a fault?

Back

A fracture in Earth's crust where blocks of land have moved past each other.