Layers of the Earth

Front

What is the coolest layer of the Earth?

Back

Crust

Front

What is the densest layer of the Earth?

Back

Inner Core

Front

How many layers does the Earth have?

Back

4

Front

What are convection currents?

Back

The cycle of heated rock or metal rising, and cooling rock or metal falling.

Front

Which layer of the Earth is made of liquid iron and nickel?

Back

Outer Core

Front

What is the outermost layer of the Earth called?

Back

Crust

Front

What is the layer beneath the crust?

Back

Mantle

Front

What is the state of matter of the inner core?

Back

Solid

Front

What is the primary composition of the outer core?

Back

Liquid iron and nickel

Front

What causes tectonic plates to move?

Back

Convection currents in the mantle