1. You should be reading over Topics 9 and 10 on your own!!!!!!
Please take out your Rivers worksheet. Keys are on your table. Take the next 5 minutes to look over your work. Any questions, please ask.
Have lunch detention today? WE ARE EXPECTING YOU. Check the cart for your name.
I CAN: identify the key ideas or elements needed for Mass Wasting to Occur!!

2. Regents Review Questions

4. Base your answer to this question on the block diagram below, which represents the landscape features associated with a meandering stream. WX is the location of a cross section. Location A indicates a landscape feature.
Which cross section best represents the shape of the stream bottom at WX? 1 2 3 4

5. The photograph below shows a valley.
Which agent of erosion most likely produced this valley’s shape?
1. wave action 3. blowing wind
2. flowing water 4. moving ice

6. Agents of Erosion
Building a Sand Castle
You have 20 seconds to build the highest sand castle you can given the material you are given.
Stop watch

7. Building a Sand Castle Box 1 no water has been added to the sand
Box ml of water was added to dry sand.
Box ml of water was added to dry sand.

8. Water

9. Where is Mass Wasting Going to Happen
On a slope

10. Gravity/Mass Movements
Mass movement – Earth materials moving downslope under the influence of gravity.
All mass movements occur on some type of a slope.

11. Things that Influence Mass Movements
There are several different factors that affect mass movements:
1. Gravity (it’s needed but always there)
2. The material’s resistance to sliding
3. A trigger (ex. Earthquake)
4. The absence or presence of water
5. The absence or presence of vegetation (the roots hold sediment together and prevent falling)

12. Water Water tends to have the biggest influence on mass movements.
To much water or to little water causes sediment to be unstable.

13. Water

14. Types of Mass Movements
Some main types of mass movements:
1. Creep
2. Slides
3. Avalanches
4. Falls

16. Notes: Creep is the gradual downhill movement of soil.
Why is this tree trunk bent??
Creep is the gradual downhill movement of soil.

19. Killer Mudslide Crashes Into California Town
A huge mudslide crashed down on homes Monday in La Conchita, Calif /10/05

20. Killer Mudslide Crashes Into California Town
Rescue workers dig through mud and debris Monday as they search for surviors in La Conchita, Calif 1/10/05

21. DEEP-SEATED LANDSLIDE POLHEMUS ROAD, SAN MATEO COUNTY
Land slide on car

22. Killer Mudslide Crashes Into California Town
Gary Phelps, Ventura County Star / AP Motorists sit stranded between two mudslides on Highway 101 in La Conchita, Calif. on Monday 1/10/05.

27. Workers prepare to set an explosive charge Monday in order to remove a massive boulder along Topanga Canyon Road in Malibu, Calif. 1/10/05

28. So what do you need for mass movement to occur
A SLOPE and some GRAVITY

29. Water

30. The diagrams below represent four different examples of one process that transports sediments.1 2 3 4
Which process is shown in these diagrams?
1. chemical weathering
2. wind action
3. mass movement
4. rock abrasion

31. 3. A landslide is an example of
2. Pieces of bedrock material that are broken from a cliff and deposited by a landslide at the base of the cliff are best described as:
rounded and sorted
rounded and unsorted
angular and sorted
angular and unsorted
3. A landslide is an example of
river deposition
glacial scouring
mass movement
chemical weathering