H.M.H - Unit 5 Lesson 1 E/E 4 Explaining Plate Motion

Front

What is the main cause of the ground beneath us being in constant motion?

Back

Tectonic plates moving

Front

What is convection?

Back

The movement of fluid caused by differences in temperature and density.

Front

What are convection currents?

Back

Movements of matter due to density differences.

Front

What can the movement of tectonic plates cause?

Back

Sudden events like volcanic eruptions and earthquakes.

Front

What causes convection currents?

Back

Hot magma rises while cool magma sinks.

Front

What are tectonic plates?

Back

Large sections of the Earth's lithosphere that move and interact.

Front

What is the lithosphere?

Back

The rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

What is the asthenosphere?

Back

The semi-fluid layer beneath the lithosphere where tectonic plates move.

Front

What is a fault?

Back

A fracture in the Earth's crust where blocks of land have moved.

Front

What is a volcano?

Back

An opening in the Earth's surface where molten rock, ash, and gases escape.