Presentation on theme: "DO NOW Objective 09/28/12 Identify the layers of the Earth. Take out AGENDA & Weekly Worksheet Week #5 Color in foldable Do you have your Raffle tickets?"— Presentation transcript:
DO NOW Objective 09/28/12 Identify the layers of the Earth. Take out AGENDA & Weekly Worksheet Week #5 Color in foldable Do you have your Raffle tickets? Put your name on the back of them.
IntroIntro Objective 09/27/12 Identify the layers of the Earth. If you tried to dig to the center of the earth, what do you think you would find? Would earth be solid or hollow? Would it be made of the same material throughout?
Earth’s Systems Atmosphere Biosphere Hydropshere Geosphere Earth’s gaseous layer of air above the surface Earth’s life Plants Animals Earth’s waters Oceans Rivers Lakes Earth’s solid layers
Earth Inside and Out Compositional property Physical property Materials and chemical compounds that make up a layer Solid, liquid, gas or combination
Layers of the Earth Compositional Layers Crust Mantle Core
Layers of the Earth Crust Composition: rock Thin, outermost layer Solid 2 Types of Crust Ocean Crust Continental Crust Less dense ~5-100km thick
Earth’s Crust Continental Crust Less dense ~5-100km thick Ocean Crust Very dense ~5-10km thick
Layers of the Earth Lithosphere Asthenosphere Mesosphere Outer Core Inner Core
Earth’s Layers – Physical Properties Lithosphere Physical property: solid, rigid “Litho” means rock Includes: Crust Upper part of mantle Broken into pieces called tectonic plates
Layers of the Earth Asthenosphere Physical property: liquid & solid (like soft wax) Flows VERY slowly Includes: upper mantle
Layers of the Earth Mesosphere Physical property: liquid & solid (like a very thick syrup) Includes: lower mantle “Meso” means middle
Layers of the Earth Outer Core Physical Property: liquid Molten iron
Layers of the Earth Inner Core Physical property: solid Iron From center of Earth to surface = 6,380km (3,833miles) Temperature = 5,430°C (9,800°F). [ [
The Layers of the Earth Summary: The inside of the earth is divided into three layers based on their composition: the crust, the mantle, and the core. Based on physical properties it’s split into five layers: lithosphere, asthenosphere, mesosphere, inner core and outer core.
Objective 09/24/12 OutroOutro Identify the layers of the Earth. Write down: 3 things you learned today 2 reasons why it is important 1 question you still have