Wednesday, September 23, 2009

Soil Composition

To review our lesson today, we discussed soil composition.  We read that soil is made up of sand, silt, clay, and organic matter.  

For credit today, answer any of the following questions:
1)  What is sand?
2)  What is silt?
3)  What is clay?
4)  What is organic matter?
5)  Why is organic matter so important in helping plants grow?

6 comments:

  1. ive read the blog and i understand the science stuff you put on it thank you for posting it on here.

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  2. Remember Christina, that on posts like this, you have to answer one of the questions in order to get credit...just like the math one with square numbers.

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  3. Hi Mrs. Perez,

    organic matter: material from living organisms.

    silt: pieces of rock smaller than sand but bigger than clay.

    sand: the largest piece of rock.

    clay: smaller than silt pieces,cannot been with the naked eye
    clay:

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  4. Awesome Cameron...thanks!

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  5. Silt:pieces of rock smaller than clay
    Sand:the largest piece of rock
    Clay:smaller than silt also you cannot see it with the naked eye
    Organic matter:things from living organisms
    Organic matter is so important tom plants because organis matter gives plants or food nutrients
    Thank You...
    Trinity

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  6. sand:the largest piece of rock
    silt:piece of rock smaller than sand but bigger than clay
    organic matter:material from living orginisms
    Organic matter is important to plants because it gives plants nutrients

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