
The rock cycle is one of Earth's most amazing natural processes. This series introduces readers to the different kinds of rocks found in the ground, as well as how they're made and how they're used. Readers will love learning about how igneous, sedimentary, and metamorphic rocks...

The rock cycle is one of Earth's most amazing natural processes. This series introduces readers to the different kinds of rocks found in the ground, as well as how they're made and how they're used. Readers will love learning about how igneous, sedimentary, and metamorphic rocks...