This exciting and colorful title investigates two of the most important processes in the formation of canyons--deposition and erosion. Students will also learn all about the three basic types of rock on Earth--igneous, sedimentary, and metamorphic--and the role these rocks play in the formation of canyons. Using stunning photography, Canyons explores slot canyons, and ocean canyons, as well as giving an in-depth look at the most famous canyon of all,...