By the end of this unit you should be able to: list the seven characteristics used to describe soils, to distinguish one soil from another soil, and to distinguish one soil layer from another soil layer; explain the impact of soil texture, structure, and organic content on soil water characteristics; distinguish gravity water, capillary water and hygroscopic water from one another, distinguish field capacity from available water capacity, distinguish infiltration rate from infiltration capacity; and classify soil texture using the soil texture triangle.