The Rock Cycle
Igneous Rocks, Sedimentary Rocks, Metamorphic Rocks, and Rocks Cycle are for students who can read at a minimum 4th grade level. The books are longer and contain in depth information about the rocks on our planet.
The Rock and Mineral Field Guide was written originally for students who completed the four ID Rock set of books. Geologists often buy this book for their children. They feel the charts and other basic information is easy for their children to use for the identification of rocks they collect.
The Earthquakes and Tsunamis book contains fascinating information about the Pacific Ocean. The book does not have a set number of chapters. Instead, it explains how and why there are so many earthquakes, volcanoes, and tsunamis that occur along the Ring of Fire in the Pacific Ocean.