Soil Composition

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What is Soil Made of

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https://www.sciencedirect.com/science/article/pii/B9780128092705000145

​The basic components of soil are minerals, organic matter, water and air. The typical soil consists of approximately 45% mineral, 5% organic matter, 20-30% water, and 20-30% air. These percentages are only generalizations at best.

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Soil Recipe

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http://omamas.com/edible-container-garden-a-

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rocks become soil

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https://www.soils4teachers.org/weathering