3. Let’s Play

5. Weathering

6. Wind

7. Water

8. Ice

9. Gravity

10. What’s Left? What’s Left?

11. 200 300 400 500 Weathe ring WindWaterIceGravity What’s Left? 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100

12. The breaking down or cracking of rock.

13. Weathering

14. The breaking down of rock by physical processes

15. Mechanical Weathering

16. Changing a rock’s composition or changing a rock by dissolving

17. Chemical Weathering

18. Two examples of Mechanical weathering

19. Ice wedging, plants & animals, falling from cliffs

20. Two examples of Chemical Weathering

21. Natural acids, plant acids, acid rain, dissolving limestone

22. The major agent of erosion in desert areas.

23. Wind

24. Rows of trees planted along fields to slow down SOIL erosion

25. Windbreaks

26. The type of wind erosion where smaller sediments are blown away. Large sediments are left behind.

27. Deflation

28. Nature’s sandblasting of rocks…

29. Abrasion

30. One example of landform created by wind DEPOSITION

31. Dunes, Loess

32. The grand canyon formed as a result of this

33. Water erosion

34. A type of water erosion that occurs over large, flat areas

35. Sheet erosion

36. The reason fertile soil is found at the mouth of a river

37. Nutrients are deposited along with sediments as a river slows down

38. One reason why farming pollutes water

39. Runoff of pesticides and fertilizers when it rains

40. Compare and contrast an alluvial fan and a delta

41. Alluvial fan: deposited by a river in a valley delta: deposited by a river at its mouth.

42. A large, frozen river that moves under its own weight

43. glacier

44. Gouges left in rock by glaciers are the result of this process

45. plucking

46. Bowl-like depressions formed at the point where glaciers begin

47. Cirques

48. Sharp ridges left behind when two side-by-side glaciers erode a mountain

49. aretes

50. A valley formed when a glacier erodes a moutain

51. U-shape valley

52. Slump, creep, rock falls, and mud slides are all examples of this

53. Mass movement

54. The name of the erosion by gravity that causes tree trunks to bend

55. creep

56. The cause of all mass movement on Earth

57. gravity

58. More material is moved over time by _______ mass movement

59. Slow

60. Two methods of making steep slopes safer

61. Terracing, planting vegetation, using concrete barriers

62. A _______ connects areas of equal elevation on a topographic map.

63. Contour line

64. Lines close together on a map indicate this

65. Steep slope

66. Line far apart on a topographical map indicate this

67. Gentle / gradual slope

68. A topographic map with a SMALL contour interval indicates this

69. A relatively flat area

70. Look at the map on the board. Tell the contour interval and height of the hill.

71. Contour interval: 25 m Height of hill: 102- 125 m.

72. FinalJeopardy

73. Landforms

74. Discuss any TWO landforms on Earth created as a result of DEPOSITION of sediment.

75. Dunes, loess, eskers, moraine deposits, beaches, sand bar, outwash deposits, etc.

76. Daily Double!