1. EROSION

3. AND DEPOSITING THEM ELSEWHERE

5. EROSION IS DRIVEN BY THE FORCE OF GRAVITY

7. Each Agent of Erosion Produces it’s Own Characteristic shape and Texture in the Sediment :

9. ROUNDS AND SMOOTHES THE ROCK SURFACE ALSO MAKES IT SMALLER

10. WIND BLOWN SEDIMENTS FROST AND PIT THE ROCK SURFACE

11. SMALL SEDIMENTS IN THE GLACIER POLISHES & SMOOTHES THE ROCK SURFACE LARGE SEDIMENTS SCRATCH AND STRIATE THE ROCK SURFACE

12. FALLEN ROCKS ARE SHARP & ANGULAR

13. RUNNING WATER The primary agent of erosion is:

14. Colorado River

15. Grand Canyon

16. Niagra Falls

21. THREE ways streams transport sediment:

24. Dissolved ions in solution

25. SEDIMENTS IN SUSPENSION : COLLOIDS

35. Water moves faster on the outside of a bend EROSION Water moves slower on the inside of a bend DEPOSITION LABEL YOUR DIAGRAM (EROSION) & (DEPOSITION) EROSION DEPOSITION

36. Erosion occurs at points Depsosition occurs at points B & E A & F A B C D F E

37. B C D E F Maximum erosion occurs where there is maximum _____________ On a straight path the maximum velocity is in the ___________ below the ____________ center surface velocity

38. EROSION OCCURS AT THE OUTSIDE DEPOSITION OCCURS AT THE INSIDE

40. THE MOVEMENT OF THE WATER CAN EVENTUALLY FORM AN OXBOW LAKE

42. CALCULATE THE MINIMUM VELOCITY OF A STREAM NEEDED TO CARRY A PEBBLE:

43. (SEE REF. TABLE PAGE 6)

44. APPROXIMATELY 50 CM/SEC

45. WHAT IS THE MINIMUM VELOCITY NEEDED TO CARRY A BOULDER? 200 CM/SEC

46. SORTING

47. WIND:

56. Severe draughts in the mid-west during the 1920’s and 30’s caused this area to be known as the “Dust bowl”

66. escarpment U-shaped valley

69. Advancing glacier

70. Retreating glacier

72. Long Island Sound South Shore North Shore

76. Advancing glacier MORE SNOW FALLS THAN MELTS

77. Retreating glacier ICE BEGINS TO MELT DUE TO CLIMATE CHANGE

87. Terminal end of advancing glacier Latest advance Melt-water carrying sorted Sediment toward the ocean

89. THE SOUTH SHORE OF LONG ISLAND

91. Glacial Till F FOUND ON THE NORTH SHORE OF LONG ISLAND

92. FASTEST VELOCITY IS AT THE CENTER OF THE VALLEY

93. Some glacial features include: escarpment U-shaped valley

94. drumlins outwash plain

96. River erosion: notice the V-shaped valleys and meanders (bending)

98. Valley glacier eroding a U-shape

99. Glacial features left behind

100. Glaciers / Rivers

101. A B C A B C Match the cross sections below with the lines on the stream A B C