Book excerpt: Earth's geosphere is made up of the planet's interior, rocks and minerals, landforms, and the processes that shape Earth's surface. The interior is comprised of many different sections, including Earth's core and crust. Readers will learn about types of rock, including igneous, metamorphic, and sedimentary rocks, and how they come together to form the rock cycle. There are many different types of minerals found inside Earth, some of which form the world's most precious gems, such as diamonds. The movement of tectonic plates inside Earth creates mountain ranges as well as drives the rock cycle. This book will help you fulfill standards in the earth science curriculum.