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Layers of the Earth Notes
10
Starter
Layers of the Earth Notes
8/31/15 8/31/15
Application/Connection/Exit: Start Foldable
Practice: Discussion:
9
Describe what this may remind you of
EQ: What are the names and locations of the main structural layers of the Earth?
9/2/14AGENDA
Objective 6.10 A Build a model to illustrate the structural layers of Earth, including the inner core, outer core, mantle, crust, asthenosphere, and lithosphere
1 Starter2. Notes/Foldable
Date Lecture/ Activity/ Lab Page8/28 Syllabus /Notebook Guidelines 1-28/28 Periodic Table/ Formula 3-48/28 Language Scripts and Quickwrites 5-68/28 Lab Report/ Safety Equipment 7-88/31 Layers of the Earth Notes 9-10
Table of Contents
Layers of the Earth Notes
10
Starter
Layers of the Earth Notes
8/31/15 8/31/15
Application/Connection/Exit: Start Foldable
Practice: Discussion: With a partner: Think of some other ways model the layers of the Earth
9
Describe what this may remind you of
EQ: What are the names and locations of the main structural layers of the Earth?
Earth’s Layer’s Notes
Color the four layers using this guide:Ocean- blueContinental crust-light brownOceanic crust- dark brownUpper mantle- yellowMiddle mantle- light
orangeLower mantle- orangeOuter Core- red-orangeInner core- Red
The Earth is composed of Four different layers.
1. The crust is the layer that you live on, and it is the most widely studied and understood.
2. The mantle is much hotter and has the ability to flow.
3. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball smaller than a marble if you were able to go to the center of the Earth!
The CrustThe Earth's Crust is like the skin of an apple. It is very thin in comparison to the other three layers.
Composition: made of granite and basalt
State of matter: Solid rock
The CrustContinental Crust: Thickness: 30-70 kmComposition: GraniteState of matter: solid rock
Oceanic Crust:Thickness: 8 kmComposition: BasaltState of matter: Solid rock
The Crust: LithosphereThe crust and the upper layer of the mantle
together make up a zone of rigid, brittle rock called the Lithosphere.
The crust of the Earth is broken into many pieces called plates. The plates "float" on the soft, semi-rigid asthenosphere.
The MantleThe Mantle is the largest layer of the Earth. It makes up the biggest part of Earth’s mass.
Composition: Made of dense, iron-rich minerals (Fe, Mg, Ca, Si, & O)
Temperature: 1000°C
State of matter: Plastic, solid(Flows like tar)
Thickness: 2900 km
The Mantle:Asthenosphere
• The asthenosphere is the semi-rigid part of the middle mantle that flows like hot asphalt
• The movement of the middle mantle (asthenosphere) is the reason that the crustal plates of the Earth move.
Convection Currents
The middle mantle "flows" because of convection currents. Convection currents are caused by the very hot material at the deepest part of the mantle rising, then cooling and sinking again --repeating this cycle over and over.
The Outer CoreThe Outer Core a hot, dense ball of liquid metals.
Composition: Made of Nickel and Iron
Temperature: 3700°C
State of matter: Liquid
Thickness: 5100 Km
The Inner CoreThe inner core of the Earth has temperatures and pressures so great that the metals are squeezed together and forced to vibrate in place like a solid.
Composition: Made of Iron
Temperature: 4300°C
State of matter: Solid
Thickness: 6378 km
Layers of the Earth Notes
10
Starter
Layers of the Earth Notes
8/31/15 8/31/15
Application/Connection/Exit: Start Foldable
Practice: Discussion: With a partner: Think of some other ways model the layers of the Earth
9
Describe what this may remind you of
EQ: What are the names and locations of the main structural layers of the Earth?
