1. Today’s Plan
Warm Up: Journey to the Center of the Earth Writing
Layers of the Earth Foldable
Layers of the Earth Notes

2. Warm Up
Watch the movie trailer for Journey to the Center of the Earth. Identify characteristics that you think are true and characteristics you think are not true. What do you think a Journey to the Center of the Earth would be like?

3. Layers of the Earth

4. The Earth is made up of 3 main layers:
Crust
Mantle
Core

5. Create Your Layers of the Earth Foldable
Land → Brown
Water → Blue
Orange
Yellow
Red

6. Land
Ocean
Oceanic Crust
Continental Crust
Crust

7. Crust Land Ocean Thinnest layer 2 miles to 75 miles deep
Oceanic Crust
Continental Crust
Thinnest layer
2 miles to 75 miles deep
Large amounts of silicon and aluminum
Two types of crust: oceanic crust and continental crust
In depth teaching about the plates and their movement will occur in the next essential question

8. Upper Mantle
Convection Currents
Middle Mantle
Lower Mantle
Mantle

9. Mantle Like hot asphalt or fudge Thickest layer
Upper Mantle
Convection Currents
Middle Mantle
Lower Mantle
Mantle
Like hot asphalt or fudge
Thickest layer
Asthenosphere: Hot magma rises to the top of the mantle, cools, then sinks, reheats, and rises again.
These convection currents change the Earth’s surface
The movement of the lithospheric plates and the convection currents will be covered more in-depth during the next essential question.

10. Outer Core
Inner Core
Core

11. Outer Core Molten (liquid) metal that is 8,500°F 1,400 miles thick
Made of the melted nickel and iron

12. Inner Core Solid sphere made of iron 12,000°F
Heat from decay of uranium
Pressure from other layers makes it a solid

13. Density and Pressure increase as depth increases