Layers of the Earth Review

What is the hottest layer?

• Crust

• Mantle

• Outer Core

• Inner Core

What is the densest layer?

• Crust

• Mantle

• Outer Core

• Inner Core

Which layer is made of solid Iron and nickel?

• Crust

• Mantle

• Outer Core

• Inner Core

The Lithosphere is made up of the ___________.

• Crust and Upper Mantle

• Inner and Outer Cores

• Outer Core and Lower Mantle

• Lower and Middle Mantle

If we can't travel to the center of the Earth, how do we know so much about it?

• Seismic waves, made by earthquakes and man-made explosions

• special camera scopes sent through all the layers of the earth

• very long thermometers that can reach to the inner core

• super powerful x-rays

Tags

NGSS.HS-ESS2-3

As you move deeper into the Earth's core, the temperature is:

• cooler

• hotter

What is the coolest layer?

• Crust

• Mantle

• Outer Core

• Inner Core

What are convection currents?

• the cycle of heated rock or metal rising, and cooling rock or metal falling.

• the cycle of cooling rock or metal rising, and heated rock or metal falling.

• an electric current found in the mantle.

• and electric current found in the outer core.

Tags

NGSS.MS-ESS2-1

What is the correct order (starting from the surface) of Earth's layers?

• crust, outer core, inner core, mantle

• mantle, outer core, inner core, crust

• crust, mantle, outer core, inner core

• outer core, inner core, crust, mantle

Which layer of Earth has the GREATEST density?

• crust

• mantle

• outer core

• inner core