1. Quick Question:
What are the 3 types of stress?
What kind of fault is caused by each of these types of stress?
When a fault occurs, the surface of earth can increase, decrease, or stay the same. Describe how each type of fault changes the earth’s surface.

2. Stress Fault Type Change in surface Area
Tension
Normal
Increases
Compression
Reverse
Decreases
Shearing
Strike-slip
No change

3. Today’s Objective:
I understand how rock moves through the rock cycle.

4. Plate Tectonics: We Didn't Start the Fire Either!

6. Let's Rock
The Rock Cycle

7. Weathering:
Gradual wearing away of earth by sources acting upon it.

8. Chemical Weathering:
The affect of chemicals in air and atmosphere

9. Mechanical Weathering
Physical changes only:
The rock type doesn’t change

10. Frost Wedging

11. Root Wedging
Plant roots pushing soil away as they grow

12. Rapid changes in weather
Temperature
Rapid changes in weather

13. Pressure under earth pushing up
Unloading
Pressure under earth pushing up

14. The moving away of surface sediment (soil, small rocks, particles)
Erosion:
The moving away of surface sediment (soil, small rocks, particles)

15. Weathering and Erosion are natural processes occurring since the beginning of time.

16. The actions of humans can affect weathering & erosion.

17. Water
Farming
Water
Wind
Rain
Deforestation
Wind
Construction

18. All soil started as rock and decomposing matter.
Sedimentary Rock created by “gluing” together small pieces of rock, sand, & organic matter
All soil started as rock and decomposing matter.

19. Sedimentary Rock: Sediment (small particles) Transportation (moved)
Deposition (put down)
Compaction (Pushed together)
Cementation (glued together by tiny dust-like particles)

21. Metamorphic Rock
Created by extreme
heat & pressure

22. Includes organic things also

23. Rapidly cooled from molten rock
Igneous Rock

24. Intrusive: Made inside the Earth
Extrusive: Made outside the Earth

25. Rock
Cycle