Science doodle notes on layers of the earth

Why is the inner core not a liquid?

• Immense pressure at the center of the Earth keeps the iron and nickel in a solid state despite the high temperatures.
• The inner core is not affected by pressure
• The inner core is too cold to be a liquid
• The inner core is made of water and not metal

Made of mostly solid metal, predominately iron and some nickel

• Mars' inner core
• Mercury's inner core
• Venus' inner core
• Earth's inner core

Made of liquid metal, mostly iron and nickel

• Crust
• Outer core
• Mantle
• Inner core

These drive plate tectonics.

Wax on, Wax off

• Magnetic fields
• Volcanic eruptions
• Earth's rotation
• Convection currents

The _______ contains most of the earth's volume. It is made of hot, dense, rock that flows.

• core
• crust
• lithosphere
• mantle

The ______ is very thin compared to most of the other layers. It is composed of solid rock that is broken into plates.

• crust

• Outer core
• Mantle
• Magma layer

Which layer of the Earth has the greatest density? Why?

• Outer core - because it is closer to the surface
• Inner core- solid metal

• Crust - because it is the outermost layer
• Mantle - because it is made of lightweight materials

Which layer of the earth is thought to be responsible for continental drift?

• Outer core
• Crust
• Lithosphere
• Mantle

  (convection currents)

What layer of the earth is the least dense?

• The crust
• The outer core
• The inner core
• The mantle

List the earth's layers form innermost to outermost

• Inner core, outer core, mantle, crust
• Mantle, inner core, outer core, crust
• Crust, mantle, outer core, inner core
• Outer core, inner core, crust, mantle