It is great to know that a text that can be expensive is provided online. It is a great informational text about soil. I did not read all of it but skimmed through the chapters. THis is something I will want to use as a useful material in my classroom when teaching students about soil. Students will be able to have this resource available to them at home and at the same time I can have students learn about soil on the computer. It is interactive and beneficial for students. It is perfect because the chapters online point out key points that should be known. The website also provides the information of the text if interested in purchasing.
Very effective and easy to get around. The sup topics are available. The left side provides a tab for the chapters/concepts as well as the top.