Structure of the Earth

The _________ is broken up into pieces.

• crust

• mantle

• outer core

• inner core

The _________ is the thickest layer.

• crust

• mantle

• outer core

• inner core

The _________________ is the densest layer.

• crust

• mantle

• outer core

• inner core

The _________ is the thinnest layer.

• crust

• mantle

• outer core

• inner core

The hottest layer is the ___________.

• crust

• mantle

• outer core

• inner core

The ___________ is the only layer that is liquid.

• crust

• mantle

• outer core

• inner core

The ____________ is not really a solid but not really a liquid; we call it a plastic.

• crust

• mantle

• outer core

• inner core

The ____________ is a solid metal ball.

• crust

• mantle

• outer core

• inner core

The __________ is the coolest layer.

• crust

• mantle

• outer core

• inner core

The ________ is the least dense layer.

• crust

• mantle

• outer core

• inner core