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Soil Exam

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  • List the 4 components of soil
    Minerals, Organic Matter, Water and Air
  • Soil sample forms a ball with a 3cm ribbon and feels very smooth.
    Silty Clay Loam
  • Why is it important for agriculturalists to understand the reduction and addition of soil?
    Farmers can decide where the best location would be to plant crops, construct buildings or utilize for animal grazing.
  • How does parent material contribute to how soil is formed?
    The parent material is worn down via weathering or chemical processes. Parent material will impact soil particle color, size, composition.
  • In Activity 4.1.3 Moving Earth, which point had the greatest amount of soil reduction? Point A or Point B?
    Point A, because it occurred at the top of the hill where the water initially fell. Reduction is soil being taken away from a spot.
  • Which item listed below is the MOST permeable? Sand, Silt, Clay or Organic Matter?
    Sand
  • Soil forms a ball with a 6cm ribbon and feels very gritty.
    Sandy Clay
  • How does time contribute to how soil is formed?
    Soils develop at varying rates depending upon the climate and other formation factors.
  • How does organisms contribute to how soil is formed? (This helps with #3 on your study guide)
    Add nutrients to the soil; Plants (decaying roots and leaves); Soil Organisms (break down organic material)
  • What are two types of erosion?
    Wind and Water
  • What are the 4 soil formation factors?
    Climate, Organisms, Parent Material, Time or Temperature (CLORPT)
  • In Activity 4.1.3 Moving Earth, which point had the greatest amount of soil addition? Point A or Point B?
    Point B, because it occurred at the bottom of the slope where water carried the soil to. Addition is soil being added to a place due to water or wind.
  • When comparing the size of soil particles we used a basketball, baseball and a key. What did each of these represent?
    Basketball is sand, Key is clay and Baseball is silt.
  • How does climate contribute to how soil is formed? (This helps with #3 on your study guide)
    Climate breaks down rock into smaller fragments and eventually down to smaller particles
  • What is porosity?
    The amount of space in a soil that may be filled with air or water.
  • Soil forms a ball with no ribbon.
    Loamy Sand
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