Soil My Undies Challenge: Measuring Soil Biology with a Pair of Briefs

Get Ready to Soil Your Undies

The Soil Your Undies Challenge- A Simple Home DIY Test for Soil

Soil Health and the Cotton Brief Challenge - Part 1 - Clackamas SWCD

Soil Your Undies Challenge – McLean County Ag in the Classroom

Soil Your Undies for Science - Chesapeake Bay Foundation

Soil Your Undies Challenge Natural Resources Conservation Service

The Soil Your Undies Challenge- A Simple Home DIY Test for Soil

How active is your soil? Try the underwear test! – ONfruit

Why some people are soiling their underwear to help the earth

Soil Your Underwear ChallengeActivity 1 - Saint Louis Science Center