Introduction to
Soil Science
Irving John C. Seduco, SGF

Soil Concepts
• Dynamic natural body composed of
organic and inorganic materials which
serves as a medium for plant growth
• Thin layer of earth’s crust which is a
mixture of mineral and organic matter.
• Loose weathered material over the earth’s
surface
• Porous material of mineral and organic
matter

Soil Concepts
• Weathered, unconsolidated mineral matter
mixed with organic matter in various stage
of decomposition formed under the
influence of climate, organisms, and relief
over the period of time