Geologic Process Part 1

The thickest layer is _______

• crust

• mantle

• outer core

• inner core

The thinnest layer is _____________.

• crust

• mantle

• outer core

• inner core

Hot, convecting layer of rock is _______________.

• crust

• mantle

• outer core

• inner core

Convection currents occur in __________.

• crust

• lithosphere

• asthenosphere

• core

The innermost layer is _____________.

• core

• lithosphere

• asthenosphere

• mantle

Which describes the core?

• the innermost part of Earth below the mantle

• the solid outer layer of Earth above the mantle

• the hot, slow-flowing layer of material beneath the crust

• the layer of Earth on which the tectonic plates move

Which do tectonic plates move on top of?

• lithosphere

• asthenosphere

• mesosphere

• outer core

The outer core is ___________.

• The outer core is the middle layer of Earth, and contains the most heat.

• The outer core is a dense, solid layer, and is responsible for the motion of Earth's plates.

• The outer core is the outermost layer of Earth, and varies in temperature and thickness.

• The outer core is a liquid layer that rotates around the inner core, and is responsible for Earth's magnetic field.

What 2 metals are the inner and outer core made out of?

• lead and iron

• iron and nickel

• lead and mercury

• nickel and mercury