Notes with video links for the introduction to soil lesson.

1. Introduction to Soil

7. Soils Perform Several Vital Functions Sustaining plant and animal life below and above the surface Regulating and partitioning water and solute flow Filtering, buffering, degrading, immobilizing, and detoxifying Storing and cycling nutrients Providing support to structures

9. SOIL COMPONENTS Air 25% Mineral Matter 45% Water 25% Organic Matter 5%

11. USDA Textural Triangle