This comprehensive presentation is a broad unit on soil, soil formation and soil layers. The unit gives performance expectations, key vocabulary, types of weathering, soil components and types, soil composition, formation, horizons, hazards, properties, characteristics. Finally the unit covers soil nutrients and forest systems.
Can best be used at High and Junior high schools, by hobby gardeners, farmers and as a college introductory presentation or as a basic refresher. Also elementary teachers can use this to "get up to speed" on the fascinating topic of soil!
Soil Lab v4 is the final version for 2015.