Why is the Inner Core solid?

• Extreme Heat
• High Pressure
• All the layers are solid
• It's made of 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

True or FalseThe most abundant elements in the Earth's crust are silicon and oxygen.

• True
• False

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 core is made-up of what two elements?

• iron and nickel
• iron and oxygen
• nickel and silicon
• oxygen and silicon

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

• mantle
• inner core
• crust
• outer core