1. Weathering – What is it? Copyright © 2010 Ryan P. Murphy

13. The breaking of rock into smaller pieces. Copyright © 2010 Ryan P. Murphy

14. Either mechanical or chemical Copyright © 2010 Ryan P. Murphy

20. Mechanical Weathering: Physically breaking rocks into smaller pieces without chemicals. Copyright © 2010 Ryan P. Murphy

21. Mechanical Weathering – Heat – Water – Ice – Pressure Copyright © 2010 Ryan P. Murphy

22. Mechanical Weathering – Heat – Water – Ice – Pressure Copyright © 2010 Ryan P. Murphy

23. Mechanical Weathering – Heat – Water – Ice – Pressure Copyright © 2010 Ryan P. Murphy

24. Mechanical Weathering – Heat – Water – Ice – Pressure Copyright © 2010 Ryan P. Murphy

25. Mechanical Weathering – Heat – Water – Ice – Pressure Copyright © 2010 Ryan P. Murphy

26. Water – It crashes into rocks and causes rocks to hit each other and become smaller and smoother. Copyright © 2010 Ryan P. Murphy

30. What happens if you leave a can of soda in the freezer?

31. Answer! It will explode because water expands when frozen. Copyright © 2010 Ryan P. Murphy

33. The increase in volume of ice is about 9%. Copyright © 2010 Ryan P. Murphy

34. The increase in volume of ice is about 9%. This increase causes enough force to break most rigid containers. Copyright © 2010 Ryan P. Murphy

35. The increase in volume of ice is about 9%. This increase causes enough force to break most rigid containers. This is the same force, repeated on a daily basis, that creates frost heaves in the roads in the winter. Copyright © 2010 Ryan P. Murphy

40. Ice/Frost Wedging: Water enters cracks in the rocks, freezes, expands and breaks rocks. Copyright © 2010 Ryan P. Murphy

42. Creates cracks and holds which you can use to rock climb. Copyright © 2010 Ryan P. Murphy

45. What is this a picture of?

46. Answer: This is a picture of the Old Man of the Mountain in Franconia Notch in the state of New Hampshire.

47. Draw the profile of the old man of the mountain in your journal. Copyright © 2010 Ryan P. Murphy

48. Draw the profile of the old man of the mountain in your journal. – A victim of weathering and ice wedging. Copyright © 2010 Ryan P. Murphy

53. Root Wedging: Plant roots enter a crack, grow and expand the crack. Copyright © 2010 Ryan P. Murphy

54. Root Wedging: Plant roots enter a crack, grow and expand the crack. Copyright © 2010 Ryan P. Murphy

55. Root Wedging: Plant roots enter a crack, grow and expand the crack. Copyright © 2010 Ryan P. Murphy

59. Which picture best represent ice wedging, and which picture best represents root wedging? Copyright © 2010 Ryan P. Murphy

60. Which picture best represent ice wedging, and which picture best represents root wedging? Copyright © 2010 Ryan P. Murphy

61. Root Wedging Copyright © 2010 Ryan P. Murphy

62. Root Wedging Copyright © 2010 Ryan P. Murphy

63. Root Wedging Ice / Frost Wedging Copyright © 2010 Ryan P. Murphy

64. Animal Activity: Animals mechanically wear away the rock. Copyright © 2010 Ryan P. Murphy

65. Effects of Animal Activity

66. Chemical Weathering This cave was formed by slightly acidic water dissolving the limestone Chemical weathering-occurs when chemical reactions dissolve the minerals in rocks or changes them into different minerals (rusting, acid breakdown, etc)

67. Chemical Weathering Natural Bridge Caverns in Texas

68. EROSION – the process by which natural forces move weathered rock and soil from one place to another. Forces that cause erosion: 1. Gravity 4. Waves 2. Wind 5. Running water 3. Glaciers

69. Erosion Galveston Texas before/after Hurricane Ike

70. Glacial Erosion Movement of Glaciers change the land beneath the glacier

71. Kelleys Island Glacial Grooves

72. Wind Erosion Shapes the land in areas where there are few plants to hold the soil in place (e.g. Desert)

73. Landslides Landslides- a geological phenomenon which includes a wide range of ground movement, such as rock falls, deep failure of slopes and shallow debris flows, which can occur in offshore, coastal and onshore environments.geological phenomenon

74. Deposition The process of eroded earth materials (sediments) being deposited in a new location Ex: delta-where sediment is deposited where a river flows into an ocean or lake builds up a landform Ex: sand dune-a deposit of wind blown sand

75. Deposition Desert winds sculpted these gentle swirls out of the limestone hills in Black Gap Wildlife Management Area, Texas. This remote, 100,000-acre (40,470-hectare) area in West Texas contains some of the lowest, driest, and hottest areas in the Chihuahuan Desert

76. Deposition Deposition area from the Rio Grande River The Red River carries sediments, and drops some along the way