Earth Layers

Front

Who is credited with developing the theory of continental drift?

Back

Alfred Wegener

Front

Where does the heat that drives convection currents in the mantle come from?

Back

The core

Front

What describes Earth's plates?

Back

They are constantly moving and changing the face of the earth.

Front

What is the physical layer of Earth made of solid rock and soil called?

Back

Lithosphere

Front

Which two continents fit together most noticeably?

Back

South America and Africa

Front

What are the three main layers of the Earth?

Back

Crust, Mantle, Core

Front

What is the layer of the Earth that is liquid and surrounds the inner core?

Back

Outer Core

Front

What is the semi-fluid layer of the mantle called that allows tectonic plates to move?

Back

Asthenosphere

Front

What is the process called when tectonic plates move apart?

Back

Divergent Boundary

Front

What is the process called when tectonic plates collide?

Back

Convergent Boundary