1. 8.e.5.A3 Earth’s Structure

2. Earth’s Structure There are 3 major parts of the Earth’s structure
Core
Mantle
Crust

3. Core The core is made up of 2 sections
Inner Core: SOLID metal (iron/nickel)
Outer Core: LIQUID metal (iron/nickel)
Made up of the heaviest and most dense material

4. Mantle Thickest layer of the Earth’s structure
Made up of HOT semisolid rock
Is broken into 2 layers
Upper Mantle: Consists of the Asthenosphere and Lithosphere
Lower Mantle
The closer to the core you get the more dense the make up is because of the pressure build up

5. Convection
Crust
Mantle
Core

6. Asthenosphere Part of the Upper Mantle
Is a HOT semiliquid rock (magma)
The magma is always moving

7. Lithosphere
Directly above the Asthenosphere in the Upper Mantle and part of the crust of Earth’s Structure
Made up of solid rock plates that slowly move because of convection
“Carries” Earth’s crust

8. Crust Thinnest layer of Earth’s Structure It is the outer most layer
Solid rock
The least dense layer of all of Earth’s layers
2 types of crust
Oceanic Crust: more dense (Basalt)
Continental Crust: less dense ( Granite)
Thinnest under the ocean
Thickest under the continents

9. Atmosphere Invisible layer surrounding the Earth
Made up of the gases we breath