chap 3 questions

Geology
Mrs. Benya
Name:
Chapter 3 Questions:
1. What is weathering?
2. Why does weathering happen?
3. What is the difference between mechanical and chemical weathering?
4. Describe how frost wedging works to break rock apart.
5. What is unloading and why does it happen?
6. How can plants or animals speed the disintegration of rock?
7. How is carbonic acid formed?
8. Will pure water chemically react with rock?
9. Why is there so much clay in soil?
10. How is most of the sand found on earth produced?
11. Why do some rocks weather to form rounded or spherical shapes?
12. What will cause a rock to weather more quickly?
13. What would be a better choice for a gravestone if you wanted to keep the memory of a loved one
alive for longer: granite or marble? Explain your answer.
14. How does climate affect the rate of weathering?
15. Where would you expect to find faster chemical weathering, in a tropical rainforest or a cold
desert? Explain your answer.
16. What is differential weathering and why does it occur?
17. This picture shows an example of what kind of weathering?
18. How did the rocks in this picture get to be so rounded?
19. How does chemical weathering affect the rate of physical weathering?
20. What kind of weathering produced this formation? How do you know?
Skip sections on Soil and Ore Deposits, Go to Mass Wasting
Mass Wasting
21. What is mass wasting?
22. What does water do to increase mass wasting?
23. How does the steepness of a slope or its vegetation affect mass wasting?
24. How do earthquakes affect mass wasting?
Falls, Slides, Flow and Slump
25. What determines what kind of mass wasting event occurs (3 factors)?
26. What conditions are necessary for a fall to occur?
27. What is a slide and when do they occur?
28. What is a flow and what conditions are necessary for them to occur?
29. What is slump?
30. How can you tell slumps, slides, flows and falls apart?
Mud (Debris) Flow, and Lahars
31. What conditions are necessary for mudflows?
32. What is a lahar and where do they occur?
Earthflow, Creep and Solifluction
33. What is the difference between earthflows and mudflows?
34. What conditions are necessary for earthflows?
35. What is creep? When does it occur?
36. What is solifluction? Do you think this can happen in Michigan?