Earth's Layers/Plates Review

Why is the Inner Core solid?

• Extreme Cold

• High Pressure and Heat

• All the layers are solid
• It's made of only rock

Which layer of the Earth is the most dense?

• crust
• mantle
• inner core
• outer core

Which layer of the Earth is responsible for Earth's magnetic field?

• outer core
• inner core
• mantle
• crust

Identify each layer - #20.

• mantle
• asthenosphere
• inner core
• outer core

Identify each layer - #15.

• Lithosphere
• Mantle
• Crust
• Asthenosphere

Identify each layer - #19.

• mantle
• lithosphere
• inner core
• outer core

The soft layer of the mantle on which the tectonic plates move

• Asthenosphere
• Outer Core
• Mantle
• Mesosphere

The inner core is mostly made-up of what elements?

• iron

• oxygen

• nickel

• silicon

What is the thinnest layer of the earth’s composition?

• mantle
• inner core
• crust
• outer core

The thickest layer of the earth is the 

• crust
• mantle
• inner core
• outer core