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The Crust of the Earth 

The outermost layer on the earth is called the 

crust. Continental and oceanic are the two types 

of crust. These two types are mainly made of 

oxygen, aluminum, and silicon   

The denser oceanic crust has almost twice as 

much iron,calcium,and magnesium. These 

elements form minerals that are denser than 

those in the continental crust  

The Mantle

This is located in between the crust and the 

core. The mantle is a layer of hot flowing solid 

rock. It is denser than the crust.This layer has 

more magnesium and less aluminum and 

silicon than the crust does.  

The core

The Core extends the from the mantle of 

the center of earth. scientist think that the 

core is made mostly of iron and some 

nickel. they also think that it contains 

much less oxygen,aluminum, and 

magnesium than the mantle does.

Lithosphere 

The physical layer of Earth that is made up of two 

parts ~ the crust and the rigid, upper part of the 

mantle. It is divided in tectonic plates. 

The lithosphere is about

100 kilometers (60 

miles) deep in most

places.

Asthenosphere

The physical layer of Earth that is part of the mantle 

that is made of solid rock that made slowly. Tectonic 

plates move on top of this layer.

It was first named in 1914 by the British geologist J. 

Barrell, who divided Earth's overall structure into 

three major sections

Mesosphere

A physical layer of Earth that is the strong, lower 

part of the mantle. Rock in this layer flows more 

slowly than in the Asthenosphere.

It is cold enough to freeze water vapor into ice 

clouds , which can be seen mostly after sunset. It 

is also colder than Antarctica's lowest temperature 

record.

Outer Core

The physical layer of Earth that is liquid. It 

lies beneath the mantle and surrounds the 

inner core. 

The Inner Core is so hot it causes all the 

metal in the Outer Core to melt into liquid 

magma.

Inner Core

The physical layer of Earth that is the dense, solid 

center. It is about 6380 km beneath Earth's 

surface. 

The temperature of the inner core is estimated to 

be about 4,940 to 8,540 degrees Fahrenheit.

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