1. Inside the Earth

2. Composition (What it is made of) Crust Mantle Core

3. The Crust Outer layer 5-100 km thick 2 types of crust –O–Oceanic (very dense, made of basalt) –C–Continental (less dense, made of granite)

4. Oceanic and Continental Crust

5. The Mantle Middle layer Very thick layer

6. The Core Made mostly of iron 1/3 of the earth’s mass Very hot

7. Earth’s Layers How are the earth’s layers similar to an egg? Shell=crust Egg white=mantle Yolk=core

8. Physical Structure of the Earth (4 Layers) Lithosphere- rigid outer layer, thinnest layer (crust) Asthenosphere- Also called mantle. solid/liquid rock that flows slowly (like hot asphalt) Outer Core- liquid layer Inner Core- solid, very dense

9. 1. Name the layer of Earth that contains mostly liquid rock. 2. Name Earth’s thickest layer. High temperatures can soften this layer and cause it to change shape. 3. Name Earth’s thinnest layer. 4. Which layer of Earth is solid due to tremendous pressure? Review of Work: