Layers of the Earth Notes 10 Starter Layers of the Earth Notes 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?

9/2/14 AGENDA 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 Starter 2. Notes/Foldable

Date Lecture/ Activity/ Lab Page 8/28Syllabus /Notebook Guidelines1-2 8/28 Periodic Table/ Formula3-4 8/28 Language Scripts and Quickwrites 5-6 8/28 Lab Report/ Safety Equipment 7-8 8/31 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 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- blue Continental crust- light brown Oceanic crust- dark brown Upper mantle- yellow Middle mantle- light orange Lower mantle- orange Outer Core- red- orange Inner 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 Crust The 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 Crust Continental Crust: Thickness: km Composition: Granite State of matter: solid rock Oceanic Crust: Thickness: 8 km Composition: Basalt State of matter: Solid rock

The Crust: Lithosphere The 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 Mantle The 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 Core The 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 Core The 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 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?