The soil science and soil chemistry is incorporated into teaching materials for earth day and beyond. It revealed some of the chemical properties of the soil through color and texture and the chemical processes relevant to soils abound, including the carbon and nitrogen cycles in the soil, acidification of soils through acid deposition, leaching…

Describes a computer program, Residue Management, which is designed to supplement discussions on the Universal Soil Loss Equation and the impact of tillage on soil properties for introductory soil courses. The program advances the user through three stages of residue management. Information on obtaining the program is also included. (ML)