layers of the earth 2

7/27/2019 Layers of the Earth 2

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NAME: ___________________________________ DATE: _____________ 6 ______

St Cecilias Primary Catholic School 2013-2014 1 | P a g e

LyricsChorusThrow your hands up for the layers of the earth

Throw em up for whats below the surface

Throw your hands up, and lets discuss

The inner core, outer core, mantle, and crust

Verse IThe layer well discuss first

Is the central inner core, in the center of the earth

A solid ball buried below the dirt

We believe its primarily metallic iron

You could never take a trip to the inner core,right?

The heat will burn you up, 9,000 Fahrenheit

4,000 miles below the Earths crust

One down three to go yall.

1,800 miles from the tip top

The outer core is hard at work and it dont stop.

Its busy spinning around the inner core, and

listen,

This steady movement causes Earths magnetism.

Ranging from 4 to 9,000 degrees,

It contributes 1/5 of the heat flowin to you and

me.

Its liquid metals that violently flow

So let it settle and when youre ready let me

know. Just

Chorus

Verse IIThe mantle layer is the largest of the class.About half of our planets mass.

The mantle is composed of very hot dense rocks,

That move and flow, always on the go, they neve

lock,

Never stop, and theyre responsible for tectonic

shift

Please believe the Earths plates are adrift

Its pretty thick and the heat is awesome

1,600 at the top, 4,000 at the bottom

The continental crusts surface is where we

breathe

A lot of rock up to 25 miles deep.

The oceanic crust is next door

Its 3-5 miles thick just below the ocean floor.

Earths surface: 70% H20.

Where do you get all that water? Salty sea flow,

fresh waters in the glaciers, ice caps, and snow.

SING ALONG


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NAME: ___________________________________ DATE: _____________ 6 ______


NOTES

We live on Earths crust which is about 32 km (20 ml) thick under the surface of the

continents and about 8 km (5 ml) thick under the ocean floor. Earths outermostlayer is the crust. The layer directly beneath the crust is the mantle. The

innermostlayer is the core. The core has an inner core and an outer core. The innercore is mainly iron and nickel. It is extremely hot and metals would usually melt at

that extreme heat. But theinner core is solid because of the pressure and weightof the other layers around it. The crust is the thinnest layer of the earth. It is

made up of rocks with loose dirt covering the rocks. The mantle is the thickest layer.

Some of the upper mantle is melted because of the heat; however, great pressure

keeps a part of the mantle solid.

Scientists study the crust by drilling to get samples from it. The other layersare

studied from materials taken after an earthquake and materials that come to the

surface after a volcanic eruption.

If we were to cut through the centre of the earth and look at the different layers of

which it is made, we would find that there are three main regions - The crust, the

mantle and the core.

The crust is the outer region and includes the surface of the earth - the part we live

on. The crust is rough and uneven with hills and valleys and has a layer of bedrock at its

base.

The region beneath the crust is called the mantle. This region is thicker than thecrust and is made up of lighter rock material. The thickest region is the core, which

consists of two parts: the outer and the inner core. The core is made up of molten

larva, when there is an earthquake, the hot liquid rock that spurts from below the

ground comes from the core area.


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NAME: ___________________________________ DATE: _____________ 6 ______


Challenge #1- Assignment 12 marks

Due Date: ________________________________

4 marks

Complete the table below with a description of the layer. 8 marks

Crust Mantle Outer Core Inner Core

layers of the earth 2

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