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- BLM NSTC Soil Biological Communities for Kids Learn all about soil and the things that live in it.
- The Dirt on Soil Explore soil ecology, meet microscopic creatures, and journey underground in the virtual reality voyage of the Earthship. From the Discovery Channel school.
- The Twelve Soil Orders 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.