Soil erosion is the movement and transport of soil by natural processes like wind and water that can remove 30 tons of topsoil per hectare annually. This topsoil loss is accelerated by activities like agriculture and drought. In Kansas specifically, 190 million tons of topsoil are degraded each year. To help prevent erosion, farmers use sustainable techniques like cover cropping and no-till farming to build soil nutrients and structure. A classroom lab demonstrates how cover crops can significantly reduce water erosion by setting up two bottles with soil - one with a cover crop layer and one without.