Learning Aids
  • Smithsonian Soils Exhibition
  • Geology of South Carolina
  • Soil Forms from Rocks
    • Minerals and Rocks
      • Bowen's Reaction Series - This animation shows how minerals form from magma (Courtesy of Wiley Interscience; Copyright © 2004 John Wiley and Sons).
    • Mineral Weathering
      • Mineral Content - This animation shows how mineral content changes over time (Courtesy of North Carolina State University).
      • Mineral Weathering - This animation shows how weathering affects all minerals to create soil (Courtesy of North Carolina State University).
      • Mineral Weathering II - This animation demonstrates different types of weathering (Courtesy of University of Kentucky).
      • Weather vs. Minerals - This animation shows how different levels of weathering affect specific minerals in soil (Courtesy of North Carolina State University).
    • Soil Formation
      • A Typical Progression of Soil Profile Development - This animation shows the typical development of a soil profile over thousands of years (Courtesy of North Carolina State University).
      • Soil Horizon Formation - This animation illustrates the processes of eluviation and illuviation (Courtesy of Wiley Interscience; Copyright © John Wiley and Sons).
      • Hill Shapes - This animation describes the different types of hill shapes and shows how the water flows down these slopes (Courtesy of North Carolina State University).
      • Soil Orders - Photo Gallery of soil orders and their uses in the US (Courtesy of Idaho State University).
  • Soil Fertility
  • Soil Microbiology
  • Soil Physics
    • Composition
      • Components of Soil Diagram - A typical pie chart showing the components of a common soil (Courtesy of North Carolina State University).
    • Texture
      • Soil Geometry - This is an animation that explains how the size and shape of soil particles affects the total exposed surface in a given volume of soil (Courtesy of North Carolina State University).
      • Stoke's Law - This is an animation that provides a visual concept of Stoke's Law (Courtesy of Juma N.G.).
      • Soil Texture Classification - This is an animation that explains how the percentage of clay, silt, and sand affects the texture of the soil (Courtesy of North Carolina State University).