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Soil

  •  English    20     Public
    types of soil, soil formation, and soil horizons
  •   Study   Slideshow
  • Explain how dirt is different than soil.
    Dirt is "dead" soil. It has lost the characteristics that give it the ability to support life.
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  • A mixture of sand, silt, clay, loam, rock and/or humus
    Soil
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  • What does CLORPT stand for? List all five factors.
    climate, organisms, relief, parent material, time
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  • How do temperature and moisture affect soil development?
    Soils develop faster in warm, moist climates and slower in cold, dry climates.
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  • Name one living organism that causes soil breakdown and explain how it does.
    Animals dig and burrow, roots grow and break up soil or release chemicals, and bacteria eat away at the soil particles.
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  • Relief is another word for....
    landscape
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  • What two factors of soil development are affected by the shape of the land and the direction it faces?
    amount of water the soil retains and the amount of sunlight it gets
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  • What is parent material?
    the material that the soil was broken down from
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  • How does the parent material affect the traits of the soil?
    Soil will have similar traits as its parent material.
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  • What are the three main types of soil?
    sand, silt, & clay
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  • Which type of soil has large grains with large spaces between them, does not retain water, and feels gritty?
    sand
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  • Which type of soil feels powdery when it is dry?
    silt
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  • Which type of soil has very small grains, gets sticky when wet but clumps when it dries, and retains water easily?
    clay
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  • A combination of different soil types and humus which is very good for growing plants
    loam
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  • Soil component that is dark, soft, crumbly, and made from decayed remains of once-living organisms
    humus
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  • What are the layers of soil from top to bottom?
    surface/organic, topsoil, subsoil, parent material/regolith, & bedrock
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