McN Planetary Diff./Earth's Layers

What is the least dense layer of the Earth?

• Crust

• Mantle

• Outer Core

• Inner Core

Which of the following layers has the greatest density?

• Inner Core

• Outer Core

• Mantle

• Crust

What layer is composed of liquid iron and nickel?

• Crust

• Mantle

• Outer Core

• Inner Core

Density within the Earth...

• Increases with depth

• Decreases with depth

Pressure within the Earth...

• Decreases with depth

• Increases with depth

What does the solid iron core and liquid outer core generate?

• gravitational field

• magnetic field

• electrical field

What layer of the Earth is composed of solid iron and nickel?

• Crust

• Mantle

• Outer Core

• Inner Core

Why is the inner core most likely solid?

• The chemicals in the core are very reactive.

• The temperature of the core is very low.

• The metals in the core are very heavy.

• The pressure in the core is very high.

How do S waves behave inside of the Earth?

• Don't move inside the Earth at all.

• Refracts off different layers of density.

• Reflects off the outer core because they can't travel through liquids.

• Arrive at the seismic stations first.

How do P Waves behave inside the Earth?

• Refract as they travel through the different densities of Earth's layers.

• Don't travel inside of the Earth.

• Arrive at the seismic station second.

• Don't travel inside of the Earth.

Tags

NGSS.MS-PS4-2