Learn all about soil and the things that live in it.
Explore soil ecology, meet microscopic creatures, and journey underground in the virtual reality voyage of the Earthship. From the Discovery Channel school.
This system for classifying soils is one of the most widely used soil classification systems in the world. Includes a collection of information and images to illustrate the distribution, properties, ecological significance, and use of these 12 soil orders.
Thanks to DMOZ, which built a great web directory for nearly two decades and freely shared it with the web. About us