1. Weathering & Erosion Unit Review
Read the question
Write your answer on the white board
Write ONLY the answer

2. Question #1
What is the change in physcial form or chemical composition of rock materials on the Earth’s surface?

3. Answer:
Weathering

4. What is the type of weathering when rocks are physically broken down?
Question #2:
What is the type of weathering when rocks are physically broken down?

5. Answer:
Mechanical

6. Question #3:
What is the type of weathering when rocks change their chemical composition?

7. Answer:
Chemical

8. Question #4:
What is it called when water seeps into cracks, freezes, and expands, breaking the rock around it?

9. Answer:
Ice wedging

10. What is the type of weathering when plant roots work to break up rock?
Question #5:
What is the type of weathering when plant roots work to break up rock?

11. Answer:
organic

12. What is it called when rocks rub against each other and wear down?
Question #6:
What is it called when rocks rub against each other and wear down?

13. Answer:
abrasion

14. Question #7:
What is the chemical reaction called that breaks down rocks with water?

15. Answer:
Hydrolysis

16. Which type of rock weathers the fastest?
Question #8:
Which type of rock weathers the fastest?

17. Answer:
Sedimentary rock

18. Which type of sedimentary rock weathers the fastest?
Question #9:
Which type of sedimentary rock weathers the fastest?

19. Answer:
Limestone

20. Which type of rock does not weather easily?
Question #10:
Which type of rock does not weather easily?

21. Answer:
Quartzite

22. Question #11:
Which will weather faster: a large rock or the large rock broken into pieces?

23. The large rock broken into pieces
Answer:
The large rock broken into pieces

24. What are the four factors that affect the rate of weathering?
Question #12:
What are the four factors that affect the rate of weathering?

25. Composition, exposure, climate, topography
Answer:
Composition, exposure, climate, topography

26. Question #13:
In what type of climates does weathering occur slowly?

27. Hot and dry OR cold and dry
Answer:
Hot and dry OR cold and dry

28. Question #14:
What is the process by which the products of weathering are transported?

29. Answer:
erosion

30. Question #15:
The main difference between erosion and weathering is that erosion involves what?

31. Answer:
transportation

32. What is the NAME of the top layer of soil?
Question #16:
What is the NAME of the top layer of soil?

33. Answer:
Humus

34. Which layer of soil has all the organic activity?
Question #17
Which layer of soil has all the organic activity?

35. Answer:
humus

36. What is the NAME of the second layer of soil from the top?
Question #18:
What is the NAME of the second layer of soil from the top?

37. Answer:
regolith

38. Which layer of soil has minerals that were leached down?
Question #19:
Which layer of soil has minerals that were leached down?

39. Answer:
regolith

40. What is the name of the third layer of soil from the top?
Question #20:
What is the name of the third layer of soil from the top?

41. Partially weathered bedrock
Answer:
Partially weathered bedrock

42. What is the name of the bottom layer of soil?
Question #21:
What is the name of the bottom layer of soil?

43. Answer:
bedrock

44. What is the smallest soil particle called?
Question #22:
What is the smallest soil particle called?

45. Answer:
clay

46. What is the middle sized soil particle called?
Question #23:
What is the middle sized soil particle called?

47. Answer:
silt

48. What is the largest soil particle called?
Question #24:
What is the largest soil particle called?

49. Answer:
sand

50. Question #25
What is a cross section in which layers of the soil and the bedrock beneath the soil can be seen?

51. Answer:
A soil profile

52. What is a layer of soil called?
Question #26:
What is a layer of soil called?

53. Answer:
Soil horizon

54. Question #27:
What is the process in which water carried dissolved minerals to lower layers of rock?

55. Answer:
leaching

56. In what type of climate does chemical weathering occur the fastest?
Question #28:
In what type of climate does chemical weathering occur the fastest?

57. Answer:
Hot, wet

58. What kind of land is best for crops?
Question #29:
What kind of land is best for crops?

59. Answer:
Flat with drainage

60. Question #30:
What is it called when farmers make cuts in the land that eventually get big enough for erosion?

61. Answer:
gullying

62. Question #31:
What is it called when farmers plow up and down slopes to allow water to run off the slopes?

63. Answer:
furrowing

64. What is it called when farmers use methods to slow erosion?
Question #31:
What is it called when farmers use methods to slow erosion?

65. Answer:
Soil conservation

66. What is a method farmers use for soil conservation??
Question #32:
What is a method farmers use for soil conservation??

67. Answer:
Crop rotation

68. What are the four agents of erosion?
Question #33:
What are the four agents of erosion?

69. Wind, water, glaciers, gravity
Answer:
Wind, water, glaciers, gravity

70. What is the movement of fragments down a slope called?
Question #34:
What is the movement of fragments down a slope called?

71. Answer:
Mass movement

72. What is a rapid mass movement called?
Question #35:
What is a rapid mass movement called?

73. Landslide, mud flow, avalanche
Answer:
Landslide, mud flow, avalanche

74. What is a slow mass movement called?
Question #36:
What is a slow mass movement called?

75. Answer:
creep

76. What are steep landforms with high elevation called?
Question #37:
What are steep landforms with high elevation called?

77. Answer:
mountains

78. If mountains have low, rounded tops, are they probably young or old??
Question #38:
If mountains have low, rounded tops, are they probably young or old??

79. Answer:
old

80. What are gently sloped or flat surfaces at or below sea level called??
Question #39:
What are gently sloped or flat surfaces at or below sea level called??

81. Answer:
plains

82. What are high-elevation flat surfaces above sea level called?
Question #40:
What are high-elevation flat surfaces above sea level called?

83. Answer:
plateaus

84. How would you classify the soil if the pH is less than 7?
Question #41:
How would you classify the soil if the pH is less than 7?

85. Answer:
acidic

86. What is the term that describes how much water the soil can hold?
Question #42:
What is the term that describes how much water the soil can hold?

87. Answer:
porosity

88. Which term describes how well water can flow through soil?
Question #43:
Which term describes how well water can flow through soil?

89. Answer:
permeability

90. Question #44:
What is the process by which the products of weathering are transported called?

91. Answer:
erosion

92. What are the spaces in between the soil particles called?
Question #45:
What are the spaces in between the soil particles called?

93. Answer:
Pore spaces

94. This concludes today’s review activity.
Have fun studying!!