Layers of the Earth

The thinnest layer of the Earth is the ___________.

• mantle

• crust

• core

Tectonic plates are made up of continental crust and ________ crust.

• continental

• oceanic

• plates

• mantle

There are how many different types of crust?

• 1

• 2

• 5

• 3

What is the thickest layer of the Earth?

• the crust

• the mantle

• the outer core

• the inner core

What describes the outer core?

• solid

• liquid

• viscous

• gas

Why is the inner core solid?

• its unknown
• what it's made of
• the pressure
• it is colder than the outer core

Which layer of the Earth is the only liquid layer?

• Outer Core

• Inner Core

• Mantle

• Lithosphere

Which layer(s) of the Earth make up the asthenosphere?

• Part of the mantle

• Crust, mantle, Core

• Crust and upper mantle

• Only the crust

What is the correct order (starting from the surface) of Earth's layers?

• crust, outer core, inner core, mantle, lithosphere, asthenopshere

• mantle, outer core, inner core, crust

• crust, lithosphere, asthenosphere, mantle, outer core, inner core

• outer core, inner core, crust, mantle, asthenosphere, lithosphere

What layer is a semisolid and acts like a plastic?

• Lithosphere

• Mantle

• Asthenosphere

• crust