1. No POD: turn in Stamped assignments
Facebook activity
Sponge bob Lab Safety
Scientific Method Review
Gum Lab Report
The Monkeys fell from the trees worksheet
Staple the assignments together, make sure your name is on the first paper, and turn in to your class period basket!

2. POD # 8 Layers of the Earth
What are seismic waves?
Is the crust made up of layers?
What creates the Earth’s magnetic field?
What is the inner core made of?

3. Layers of the Earth

4. Inner Core Solid iron due to extreme pressure and temperature
Approximately 3,150 miles from the crust

5. Inner Core
Approximately 9,000° F
Does move and vibrate in place

6. Outer Core
Surrounds inner core
Liquid metal (iron and nickel)

7. Outer Core Approximately 4,000°F to 9,000°F
Approximately1,800 miles from the crust

8. Outer Core
As Earth rotates, the liquid outer core spins to create Earth’s magnetic field

9. Mantle Layer between crust and core
Composed of very hot, dense rock and iron

10. Mantle Approximately 1,800 miles thick – the thickest layer
Approximately 1,600°F to 4,000 °F

11. Mantle Less dense near crust – More dense near core
Contains 67% of Earth’s mass

12. Asthenosphere Below the lithosphere Upper part of the mantle
Hotter, softer rock that will flow slowly

13. Asthenosphere
Motion of the Asthenosphere causes continents to drift

14. Lithosphere
Bottom part of Earth’s crust and the very top of the mantle
Most rigid of all layers
Approximately 100 km thick

15. Lithosphere
Sits on top of the Asthenosphere

16. Moho
Boundary between Earth’s crust and the mantle

17. Crust Outer most layer Thinnest layer – ranging from 5 to 70 km thick
Less than 1% of Earth’s mass

18. Crust
2 types of crust – continental crust (granite) oceanic crust (basalt)
Temperature 0°F to 1, 600°F depending on air temperature