Layers of the Earth

3rd planet in the solar system and the only known planet that can harbor life.

• Mars

• Earth

• Jupiter

• Europa

Movement in the (a)   caused by variations of heat from the core, causes the plate to shift, which cause earthquakes and volcanic eruptions.

It is the outermost layer of the Earth; its thickness can range from 5 to 70 km.

• Crust

• Mantle

• Outer Core

• Inner Core

It is a rigid, rocky outer layer of the Earth, consisting of the crust and the solid outermost layer of the upper mantle. It extends to a depth of about 100 km.

• Lithosphere

• Asthenosphere

• Mesosphere

• Stratosphere

The layer of the Earth that mainly consist of Silicate

• Crust

• Mantle

• Outer Core

• Inner Core

 

I am the boundary between the Earth and the Crust. What am I?

(a)  

____is 2300 km thick, extending to a radius of

~3,400 km.

In this region, the density is estimated to be much higher than the

mantle or crust, ranging between 9,900 and 12,200 kg/m3.

• Crust

• Mantle

• Outer Core

• Inner Core

What is the state of matter of the Outer Core composition?

• Solid

• Liquid

• Gas

• Plasma

This is the two forces is the reason why the inner core is solid.

(a)  

She's the one who discover that inner core is solid and the boundary between Outer and Inner Core.

• Andrija Mohorovicic

• Inge Lehman

• Victor Conrad

• Weichert Gutenberg