Layers of the Earth

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

• crust, outer core, inner core, mantle
• mantle, outer core, inner core, crust
• crust, mantle, outer core, inner core
• outer core, inner core, crust, mantle

The thinnest layer of the Earth is the ___________.

• mantle
• crust
• core

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

What happens to pressure as we move from the crust to the inner core?

• Pressure Decreases
• Pressure Increases
• Nothing

Which layer of Earth is made up of tectonic plates that can move around?

• outer core

• inner core

• asthenosphere

• lithosphere

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

• continental
• oceanic
• plates
• mantle

What is the name of the layer that contains the uppermost mantle and crust

• Asthenosphere
• Mesosphere
• Lithosphere
• Transosphere