Compositional Layers of the Earth

Earth's core is mainly composed of?

• Iron and aluminum

• Silicon and hydrogen

• Iron and nickel

• Silicon and oxygen

The average density of one crustal plate is 2.8 g/cm^3 and the average density of an oceanic plate is 3.2 g/cm^3. If these two plates came together, what could be expected to happen?

• The two plates would push apart and form a rift zone

• The oceanic plate would rise up over the continental plate

• The oceanic plate would be pushed under the continental plate

• The two plates would meet head on and rise up to form mountains

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

From lowest to highest temperature, which is the correct order of Earth's layers?

• Inner core, outer core, mantle, crust

• Mantle, crust, outer core, inner core

• Crust, mantle, outer core, inner core

• Crust, mantle, inner core, outer core

Which layer is shown in red?

• crust

• mantle

• outer core

• inner core

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

• crust

• mantle

• outer core

• inner core

Which layer is made (mostly) of LIQUID iron and nickel?

• crust

• mantle

• outer core

• inner core

Which layer of the Earth is the THINNEST?

• crust

• mantle

• outer core

• inner core

Which layer of the Earth is the THICKEST?

• crust

• mantle

• outer core

• inner core

The layer that lies beneath the mantle and surrounds the inner core. 

• mantle

• outer core

• inner core

• crust

This is the outermost, rigid layer of the Earth, made up of two parts, is divided into pieces call tectonic plates.

• Inner Core

• Asthensophere

• Lithosphere

• Outer Core

Tags

NGSS.MS-ESS2-3