Who am i? (layers of Earth)

I am the thinnest layer of the Earth?

• crust

• mantle

• outer core

• inner core

I made from Nickel and Iron

• 
  Crust

• Mantle

• Core

I am the only liquid layer

• Crust

• mantle

• Outer Core

• Inner Core

I am the hottest layer

• Crust

• Mantle

• Core

I am the red layer

• 
  Crust

• Mantle

• Core

I am the coolest layer

• Crust

• Mantle

• Core

What is the correct order of Earth's layer starting from the surface?

• Crust, mantle, outer core, inner core

• outer core, inner core, crust, mantle

• crust, outer core, inner core, mantle

• 
  mantle, outer core, inner core, crust