In this chapter, we are going to explore the SYSTEM of Earth's matter. Did you notice the S word in the previous sentence? As a systems thinker, you probably began asking yourself a systems question, such as, what are the parts of the Earth matter system?

As you can see from the chapter topics on the left, Chapter 2 of Dr. Art's Guide to Planet Earth explores Earth's solid stuff, liquid stuff and gas stuff. Trust me - reading the print book is the best way to explore this stuff. The links here on the web are designed to enrich that experience, not replace it.