Earth's Layers Check-up

List the layers of the Earth from the center to the outside.

• crust, mantle, outer core, inner core
• mantle, crust outer core, inner core
• inner core, outer core, mantle crust
• continental crust, oceanic crust, mantle, core

The two types of crust are continental and

• oraphanic
• oceanic
• octopanic
• none of these

Most of the Earth's mass is contained in the

• crust
• mantle
• outer core
• inner core

Compared to the continental crust, oceanic crust is

• Thicker
• thinner
• more magnetic
• more viscous

A common rock type found within oceanic crust is called

• granite
• obsidian
• basalt
• sandstone

Thin inner core is composed of _______ and _________

• iron and copper
• iron and diamonds
• diamonds and nickel
• iron and nickel

Why is the inner core solid despite the extremely high temperature?

• pressure
• mass
• volume
• density

Which layer of Earth would you expect to have the greatest pressure?

• inner core
• outer core
• crust
• mantle

The layer of the Earth that is made of the lightest materials is the

• mantle
• crust
• core
• ozone

Why have humans only dug through a part of the crust?

• because they don't have a reason to dig further
• because the temperature and pressure would be too great
• because the drills keep breaking
• because it can cause an earthquake