Layers of the Earth

How many layers does Earth have?

• 1

• 2

• 3

• 4

What is the thinnest layer?

• Crust

• Mantle

• Outer Core

• Inner Core

What is the hottest layer?

• Crust

• Mantle

• Outer Core

• Inner Core

Tags

NGSS.MS-PS1-4

Which layer is made of solid Iron and nickel?

• 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

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

Which layer is shown in red?

• crust

• mantle

• outer core

• inner core

Which layer is shown in orange?

• crust

• mantle

• outer core

• inner core

Which layer is made of "flowing" solid rock (think clay or pudding)?

• crust

• mantle

• outer core

• inner core

Tags

NGSS.MS-ESS2-1

Tectonic plates are made up of continental crust and ________ crust.

• continental
• oceanic
• plates
• mantle