Soil science studies soil as a medium in which plants grow. Like all sciences, it divides its subject into sections that can be studied separately and for their effect on each other. The ways soil scientists look at soil include:
Soil Components The different types of materials that make up soil.
Soil orders This system classifies soils with similar features into orders and families. This is a taxonomy of soils.
Soil life The most important of these are microscopic bacteria and fungi, but soil life also includes earthworms, nematodes, insects and mites, and larger animals.