Plate Tectonics

Front

What is a volcano?

Back

An opening on the Earth's crust through which hot molten rock flows out from deep inside the Earth.

Front

Who proposed the Continental Drift Theory?

Back

Alfred Wegener.

Front

What is the name of the single supercontinent proposed by Alfred Wegener?

Back

Pangea, which means 'all Earth' in ancient Greek.

Front

What does sea-floor spreading explain?

Back

How new crust is created at a divergent boundary.

Front

What is the correct order of Earth’s layers starting from the surface?

Back

Crust, mantle, outer core, inner core.

Front

What is the Earth's crust?

Back

The outermost layer of the Earth, where we live, consisting of solid rock.

Front

What is the mantle?

Back

The layer of the Earth between the crust and the outer core, made of semi-solid rock that flows slowly.

Front

What is the outer core?

Back

The layer of the Earth beneath the mantle, composed of liquid iron and nickel.

Front

What is the inner core?

Back

The solid innermost layer of the Earth, made primarily of iron and nickel.

Front

What is a tectonic plate?

Back

A large, rigid piece of the Earth's lithosphere that moves and interacts with other plates.