Another of my students favorite labs. I've run this lab in my Botany Class, Introduction to Agriculture (Soil Unit), and my Principles of Horticulture class. This is the perfect capstone for any soil unit and really gets kids to care about the soil metrics which can be a bore to most students. When they actually get to test the N, P, K, Carbon, Biodiversity, pH, and Water Retention of 6 local sites, they see how all of these variables come together to make/not make healthy soil. To really get th