1. Earth’s Interior
Interior=inside

2. Geologist
A geologist is a scientist that studies the forces that shape earth’s surface
200 years ago was the start of geology
Geology is fairly new

3. Rock
The material that forms Earth’s surface
Geologists study rocks

4. Forces that shape Earth
Constructive
Destructive

5. Constructive Building up Ex. Construction
The building (MS) was changed constructively.

6. Constructive
Mountain ranges forming(slowly)
Over millions of years

7. Destructive Forces that slowly wear down the Earth’s surface
Destroy =Destruction

8. Destructive
Erosion by wind and water
Think of our local beaches

9. Journey to the Center of the Earth
Temperature increases
Pressure increases

10. How do we know what inside Earth is like if we can’t travel through it?
Scientist know this by studying seismic waves/data from earthquakes

11. If you took that journey you would find layers of the Earth
Crust
Mantel
Core

12. Crust “skin” of earth Like the shell of an egg or onion skin
VERY THIN!!!!!!
Includes land on bottom of ocean floor
Thinnest under the ocean(basalt)
Thickest under mountains(granite)
Is part of the lithosphere
Most abundant element oxygen then silicon

13. Lithosphere Lithosphere means stone Crust and uppermost mantle Rigid
Contains plates

14. Oceanic vs. Continental Crust
Under oceans
Under continents
thinner
thicker
Made of basalt(think salty ocean)
Made of granite
More dense
Less dense

15. Asthenosphere Gooey/bendable Plastic like rock
Convection take place here
Found in Upper mantle only
NOT A LIQUID!!!!
SOLID

16. Mantle
A layer of hot rock
is also part of the lithosphere

17. Core Center of the Earth)
Inner core
Outer core

18. Outer core
Acts like a thick liquid

19. Inner Core dense ball of solid metal Heat source for convection
Hotter than the sun
Spins-creates earth’s magnetic shield

20. The Lithosphere Crust and uppermost mantle Floats on the asthenosphere
Broken into pieces- tectonic plates

21. Crust Crust part of the (Lithosphere) Continental Less dense Oceanic
More dense

22. Mantle
Upper Mantle called the asthenosphere