Weathering

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Author:
mglicc
ID:
54393
Filename:
Weathering
Updated:
2010-12-08 18:40:22
Tags:
earth science weathering
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Description:
Mr. Colon
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  1. What is weathering?
    The breakdown of rocks by physical or chemical process
  2. Which type of weathering occurs when rocks are broken in to smaller pieces without changing the chemical composition of the rock?
    Physical weathering
  3. What type of weathering is frost action?
    Physical weathering
  4. This picture of granite bluffs being eroded by water is an example of which type of chemical weathering?
    Hydration
  5. Which choice of the following contains two types of physical weathering?

    A) Rusting and abrasion
    B) Thermal expansion and rusting
    C) Compaction and Cementation
    D) Exfoliation and frost action
    E) Rusting and oxidation
    D) Exfoliation and frost action
    (this multiple choice question has been scrambled)
  6. What specific type of weathering is shown in this picture and is that type of weathering chemical or physical?
    frost action / frost wedging, physical
  7. What is the term for when rocks rub or bounce against eachother?

    A) Physical Weathering
    B) Cementation
    C) Foliation
    D) Abrasion
    E) Friction
    F) Chemical Weathering
    G) Oxidation
    D) Abrasion
    (this multiple choice question has been scrambled)
  8. What is the term for the peeling away of large sheets of loosened materials at the surface of a rock?
    Exfoliation
  9. Physical weathering ________ the size of the rocks it breaks down while _________ the surface area of the sediments

    A) increases, increasing
    B) decreases, decreasing
    C) increases, decreasing
    D) decreases, increasing
    D) increases, decreasing

    (Physical weathering increases the size of the rocks it breaks down while decreasing the surface area of the sediments)
    (this multiple choice question has been scrambled)
  10. What type of rocks are most likely to be weathered by exfoliation?

    A) Slate, schist and sandstone
    B) Gabbro, basalt, and mica
    C) Shale, slate, and mica
    D) Granite, schist, and mica
    C) Shale, slate, and mica
    (this multiple choice question has been scrambled)
  11. What type of weathering has occurred in the picture above?
    Chemical weathering
  12. What type of chemical weathering occurs when oxegyn interacts chemically with minerals?
    Oxidation
  13. Which type of chemical weathering must hornblende and feldspar undergo for them to turn into clay?
    Hydration
  14. Karsttopography, sink holes, stalactites and stalagmites are all terms associated with which type of chemical weathering?
    Carbonation
  15. Which type of climate is most likely to promote physical / mechanical weathering?

    A) Dry with fluctuating temperatures
    B) Humid and consistantly cold
    C) Humid with fluctuating temperatures
    D) Choice A, and choice E
    E) Humid and constantly warm
    F) Dry and constantly cold
    G) Dry and constantly warm
    H) Choices A, E, and F
    H) Any type of dry climate
    (this multiple choice question has been scrambled)
  16. Which is the best example of physical weathering?

    A) The cracking of rock caused by the freezing and thawing of water
    B) The transportation of sediment in a stream
    C) The formation of a sandbar along the side of a stream
    D) The reaction of limestone with acid rainwater
    A) The cracking of rock caused by the freezing and thawing of water
    (this multiple choice question has been scrambled)
  17. What is the general relationship between the depth of a soil formed from underlying bedrock and the length of weathering period responsible for its formation?
    The longer the weathering period, the deeper the soil.
  18. What are the four factors that the type of weathering and the weathering rate are

    1. Exposure to the surface
    2. _____________
    3. ____________
    4. Mineral _______
    • 1. Exposure to the surface
    • 2. Particle size
    • 3. Climate
    • 4. Mineral composition
  19. Why do smaller particles weather faster than larger particles?
    Because you have more surface area with smaller particles (example: granulated sugar breaks dissolves faster than a suger cube)
  20. Why do rocks rich in Calcite and Dolomite weather faster than those rich in Quartz and Feldspars?
    Because of their low hardness (physical) and reaction to acids (chemical)
  21. Rocks on the surface weather _______er than rocks buried deep underground
    Rocks on the surface weather faster than rocks buried deep underground
  22. What type of area is most likely to promote chemical weathering?

    A) Dry
    B) Urban
    C) Alpine
    D) Marine
    E) Humid
    E) Humid
    (this multiple choice question has been scrambled)
  23. Which of the following is most likely a result of Carbonation?

    A) Exfoliation
    B) Landslide
    C) Frost Action
    D) Sinkhole
    D) Sinkhole
    (this multiple choice question has been scrambled)
  24. _____________ weathering alters the composition of minerals and ____________ weathering does not.

    A) Chemical, physical
    B) Physical, chemical
    A) Chemical, physical

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