PLSC Spring 2025 courses PLSC Course DescriptionsCourse SpotlightPLSC Spring 2025 coursesPLSC Fall 2025 courses PLSC Spring 2025 courses SPSS 2125 2125. Soils Lab 1.00 credits Prerequisites: None. Grading Basis: Graded Basic laboratory analysis of the physical and chemical properties of soil. Includes weekend field trips.