Properties
    Chemical
    Physical
      Color
      Texture

Soil Profile
     O horizon
     A horizon
     E horizon
     B horizon
     C horizon
     R horizon

Soil Organisms

Soil Formation

Soil Development

SOME IMPORTANT WORDS AND CONCEPTS
Soil
Texture
Soil profile
Horizons
O horizon
Humus
A horizon
E horizon
Leaching
B horizon
Zone of illuviation
C horizon
R horizon
Podzolization
Laterization
Calcification
Salinization
Gleyization
Compaction
Sheet erosion
Rill erosion
Gully erosion