This document contains notes from a civil engineering class on soils and foundations. It includes definitions, equations, and examples relating to soil properties like unit weight, shear strength, and bearing capacity. It also includes calculations for bearing capacity factor, active earth pressure, and factor of safety against sliding and overturning. The last page provides a brief description of civil engineering as a profession involving the design, analysis, and construction of infrastructure to serve the public, such as bridges, dams, roads, and water and sewage systems.