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Answer:
1. What common characteristics did you observe on the three types of soils?
•Soils are composed of organic matter (stuff that used to be alive, like plants and animals) and small inorganic matter. There are three basic soil types: sand, silt, and clay. Sand is comprised of tiny rock fragments and is the roughest in texture. Clay becomes sticky or greasy when wet, and very hard when dry.
2. Do the soils have the same color and texture? Why do you think so?
•The color in soil is mainly due to two factors – organic content and the chemical nature of iron compounds found in the soil.Soil texture refers to the proportions of sand, silt and clay in the soil. Soil with equal amounts of sand, silt and clay is called a “loamy” soil.
3. What did you observe when you added water to each soil?
•When water is added to soil, it can replace the oxygen that is naturally in the soil, and make the soil darker. This means wetter soil will have less oxygen compared with drier soil. When enough water is added, soil can become saturated and the water will start to form a layer on top of it.
Explanation:
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