Earth's Internal structure

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

Inner core

• Thick layer of slow moving rock 
• Thin, rocky layer
• Layer of Solid Metal 
• Layer of flowing liquid metal 

Outer Core

• Thick layer of slow moving rock 
• Thin, rocky layer
• Layer of solid metal 
• Layer of flowing, liquid metal 

Mantle 

• Layer of flowing liquid metal 
• Layer of solid metal 
• Thin, rocky layer
• Layer of slow moving rock

Crust 

• Thin, rocky layer
• Layer of slow moving rock 
• Layer of solid metal 
• Layer of liquid flowing metal 

Which statement best describes Earth's crust and mantle?

• The crust is thicker and less dense than the mantle.

• The crust is thicker and more dense than the mantle.

• The crust is thinner and less dense than the mantle.

• The crust is thinner and more dense than the mantle.

Earth's Inner core is?

• A layer of rock that forms Earth's outer surface

• A layer of molten (liquid) iron and nickle

• A layer of solid iron and nickel

• A solid/plastic layer of Peridotite that flows over time?

The outer layer of the Earth is called the

• Crust

• Mantle

• Inner core

• Asthenosphere

What do you call to the thickest layer of the Earth?

• A. Outer Core

• B. Inner Core

• C. Mantle

• D. Crust

what is letter B?

• Moho Discontinuity

• Reppetti Discontinuity

• Lehman Discontinuity

• Gutenberg Discontinuity