1. Warm Up
Explain the difference between physical and chemical weathering.
List and describe the 3 types of physical/mechanical weathering.
In what type of environment does chemical weathering occur the fastest?
If you increase the surface area of an object, what will happen to the rate of weathering?
**Set up Cornell Notes on pg 15 (1st & 3rd Block)**
**Set up Cornell Notes on pg 17 (2nd Block)**

2. Table of contents (1st and 3rd Block)
Left-Side Items
Page
Right-Side Items
Rock Sort 8
Rock Types CN 9
Rock Graphic Organizer
Rock Cycle CN 11
Crayon Lab 10
Weathering CN 13
Rock Cycle WS
Erosion CN 15
R.A.F.T.
Weathering Lab 12
Erosion Lab 14
Erosion/Weathering WS

3. Science GEMS of Wisdom (1st & 3rd Block)
Page
Avid Strategy W I C O R 8
Rock Sort
Rock Graphic Organizer 10
Crayon Lab
Rock Cycle WS
R.A.F.T. 12
Weathering Lab 14
Erosion Lab
Erosion/Weathering WS

4. Table of contents (2nd Block)
Left-Side Items
Page
Right-Side Items
Rock Sort 10
Rock Types CN 11
Rock Graphic Organizer
Rock Cycle CN 13
Crayon Lab 12
Weathering CN 15
Rock Cycle WS
Erosion CN 17
R.A.F.T.
Weathering Lab 14
Erosion Lab 16
Weathering/Erosion WS

5. Science Gems of Wisdom (2nd Block)
Page
Avid Strategy W I C O R 10
Rock Sort
Rock Graphic Organizer 12
Crayon Lab
Rock Cycle WS
R.A.F.T 14
Weathering Lab 16
Erosion Lab
Erosion/Weathering WS

6. Activating Strategy
Imagine you lived in this house on the edge of a cliff
What would some concerns be about living there?
What potential dangers might you face? Explain how these dangers may occur.

7. Daily Objective & LEQ
SWBAT compare erosion by water, wind, ice, and gravity and the effect on various landforms
LEQ: What is erosion, the four factors that cause it, and the effect it has on various landforms?
Key Terms: erosion, deposition, gravity

8. Weathering Review
Increased surface area = increased (faster) rate of weathering *Smarties in acid experiment
Wet & Warm climate = fastest rate of weathering
Alka-seltzer dissolved fastest in warm H2O
Physical (Mechanical) Weathering-like tearing a paper
Chemical Weathering-like burning a paper
REVIEW EXIT TICKET

9. Agenda Warm-Up Weathering Review Unit 2 Global Focus: Uganda
Erosion Lab
Erosion Notes
Erosion Videos
Exit Ticket

10. Uganda

11. Facts about Uganda Capital: Kampala Climate: Tropical
Population: 32.7 million
Languages: English & Swahili (official); numerous other local tribal languages
Education: 56% finish Primary school; 74% literate
Life expectancy: 52.7 years old

12. Landslide Kills at Least 29
A landslide killed at least 29 people on Monday, August 30, 2011 in an eastern district of Uganda, including children buried in their homes, officials said. The bodies of 6 children and 13 others had been found, the Red Cross said, and the government said it had sent crews to help recover any remaining victims. The landslides occurred after heavy rainfall in the Bulambuli district, 167 miles east of Kampala

14. Erosion: A Destructive Natural Force
Unit 2, Lesson 4

15. Erosion Lab!
It’s time for us to build our dream communities! But, be careful because you never know what natural forces could cause erosion in your communities!

16. Lab Materials & Directions
Groups of 2: Design a community on page 14 (1st and 3rd Block) and 16 (2nd Block); Your materials include: 5 graham crackers, ½ cup frosting, 10 toothpicks.
Expect a variety of weather to come your way
You have 5 minutes to design your community.
Once the 5 minutes is up, we will vote which community we will build as a class! The winning community receives a prize!
3 Rounds (We will have one minute to re-build after each Round of Weather)

17. What is Erosion?
The transportation of material by wind, water, ice, or gravity on the Earth’s surface.

18. How does erosion differ from weathering?
Weathering BREAKS DOWN the Earth’s material into sediments.
Erosion TRANSPORTS the sediments to a new location.

19. After the material is eroded, where does it go?
Deposition is the process by which sediments are dropped in a new location, building up and creating a new landform over time.

20. What is the difference between erosion and deposition?
Erosion transports materials from place to place. Deposition drops sediments and builds new landforms.

21. What is the primary cause of erosion?
Running water is the primary cause of erosion all over the world, primarily due to water flowing over the land as runoff or hitting coasts and beaches.

22. How does Water cause erosion?
Stream Erosion:
Water in a moving stream picks us sediments from the bottom/sides of its channel.
Gullies form on hillsides when run-off cuts into the soil. They resemble large ditches or small valleys.

23. How did the Grand Canyon form?
The Grand Canyon took 3-6 million years to form
Millions of years ago, the Colorado River flowed slowly across a broad flat area in present day Arizona. Over time, the Grand Canyon was carved into the Earth through erosion by the Colorado River.

24. How does Gravity cause erosion?
Mass Wasting: the movement of rocks and sediments downhill because of gravity.
Slump: downward movement of material along a curved surface.
Creep: slow downward movement of sediments

25. What is the most active agent of erosion in deserts?
Wind is the most active agent of erosion in deserts, in plowed fields, and on beaches.

26. How does Wind cause erosion?
Deflation is the lifting and removal of loose particles such as clay and silt, resulting in the lowering of the land surface
Sand dunes form as a result of wind erosion in the desert

27. How does Ice cause erosion?
Glaciers are huge masses of moving ice that erode by mainly two different processes:
Abrasion: glacial ice and rock fragments smooth and polish the bedrock surface like sandpaper.
Plucking: rock breaks up beneath the glacier when the melted water gets into the cracks and refreezes (*like frost wedging). The broken fragments are picked up and incorporated into the glacier.

28. Erosion can occur because of…
Wind
Water
Ice
Gravity

29. Where can erosion be seen in real life?
The entire river basin in Louisiana is the product of sediment deposition from the Mississippi River following the latest rise in sea level about 5,000 years ago.

30. Mudslide

31. Water
Flooding

32. Wind

33. Arbol de Piedra in Altiplano, Bolivia

34. Ice
The Matterhorn, the border of Switzerland and Italy

35. Gravity
Mudslide

36. Extension Activity
With your partner create a diagram or graphic organizer that shows how weathering, erosion, and deposition form a continuous cycle that builds-up and breaks down the land over time?
You must also write at least 6 sentences to describe and support your diagram. (Develop a diagram or picture to show this and support your answer)

37. ___________ Mechanical/Physical ________________ _________________
Weathering (breaks down)
Mechanical/Physical
________________
_________________
___________
Erosion
Stream erosion
Gullies
Landslide
Wind
Deflation
Sand ___________
____________
Abrasion
______________
Mass wasting
Deposition (builds ___________)
Drops sediments, builds landforms

38. Chemical Mechanical/Physical Biological Activity Unloading
Weathering (breaks down)
Mechanical/Physical
Biological Activity
Unloading
Frost Wedging
Chemical
Erosion (transports)
Water
Stream erosion
Gullies
Landslide
Wind
Deflation
Sand dunes
Ice
Abrasion
Plucking
Gravity
Mass wasting
Deposition (builds landforms)
Drops sediments, builds landforms

39. Weathering/Erosion Worksheet!
Work independently for 8 minutes on the weathering erosion worksheet.
Once the 8 minutes is up, I will allow 2 minutes for you to talk to your partner to check your answers before I collect the assignment!!

40. Quick Check! What are the 4 types of erosion?
Name one example for each four types.

41. Warm Up! (*Your warm-up/exit ticket paper is due today for a quiz grade!!*) Make sure dates are written and your name!)
What is the major role of erosion?
What are the major differences between each type of erosion.
The Grand Canyon was formed by which type of erosion?