BiologyWise
Biology Wise: Common Earthworm Classification and Characteristics
The taxonomic classification of the earthworm is described and its anatomical characteristics.
Other
N.e. Soil Formation: Genesis
This comprehensive site explores a number of soil related topics. A glossary of soil terms, formation of soils, and classification of soils are just of a few of the topics found on this this.
US Department of Agriculture
Nrcs: Web Soil Survey
Mapping the earth's soils can help us understand how the land can be used. Find out how to use soil characteristics obtained through soil surveys to create a soil map. Learn about the methods of soil mapping including digital soil mapping.
Michigan Reach Out
Michigan Reach Out!: Digging the Earth's Crust
Lesson plans from Michigan Reach Out! to help students understand the different soil types and what uses they would be good for.
Utah Education Network
Uen: Rocks and Soils: What Kind of Rock Am I?
Test your knowledge of different types of rocks by taking a quiz. Determine if each picture shows an igneous, metamorphic, or sedimentary rock.
Other
Nasa: The Case of the Prize Winning Plants [Pdf]
This program uses a scenario with fictional detective characters to present plant growth to students. While the unit focuses on the basic needs and parts of plants, the topics of plant classification and adaptations, soil formation and...
Australian Museum
Australian Museum: Sedimentary Processes
Everything you need to know about sedimentary rocks and the processes by which they are created, including weathering, soils, environments, and classification.