Soil Your Undies For Science

Soil Your Undies Challenge The Soil Your Undies Challenge is an experiment to find out how healthy your soil is and see the amazing work being done in the soil beneath our feet. Healthy soil gives us clean air and water, bountiful crops and forests, productive grazing lands, diverse wildlife, and beautiful landscapes. The Shiawassee Conservation District conducted their first ever Soil Your Undies Challenge in the summer of 2025. Ten pairs of cotton underwear were “planted”, and nearly all of them were found and “harvested”, showing varying degrees of decomposition. Soil is a busy community of life! Soil is filled with billions of microorganisms, working together to break down organic matter, hold water, resist erosion, boost nutrient cycling, and support plant growth. The more active these organisms (including bacteria, fungi, and earthworms) are, the healthier your soil will be. Healthy soil = healthy life! The Process Ten pairs of new, 100% cotton underwear were buried in diffe...