Soil Review

It is a complex mixture of mineral particles, air water, humus and various types of living organisms on Earth's surface in which plants can grow.

A layer of soil generally parallel to the soil surface, whose physical characteristics differ from the layers above and beneath.

Mineral soil at or near the surface where seeds germinate and roots grow.

Mineral soil underlying the A horizon that has undergone varying translocation, transformation, mixing, and addition processes.

This layer is known as parent material...just above the bedrock.

The bedrock which lies below all of the other layers of soil.

An organic horizon (non-mineral), typically associated with wetland positions in the landscape, with organic matter in various stages of decomposition.

light brown, doesn't clump, good drainage, dries quickly, mostly mineral with little humus, particle size 2 to .05 mm in diameter

a dark colored substance that forms as plant and animal remains decay.

the organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals.

something that is full of tiny, connected air spaces that water can seep through

soil that is made up of equal parts of clay, sand, and silt.

soil underlying the surface soil

typically the A horizon darkened by the addition of humus material (Ah)

The movement of Earth, rock, and soil from one place to another.