Rocks, the hard facts

Easy-to-understand text explains what minerals are and the different types.

Discusses the geochemical cycles of rocks and minerals.

Sedimentary rocks form from built-up layers of eroded rock and plant matter pressed together over time. At-level text and graphic organizers explore how the makeup of sediment, rock formation, and identifying different kinds of sedimentary rocks. Readers will also learn how fossils form in sedimentary rocks, and the role sedimentary rocks play in the rock cycle. The interactive eBook version features videos, graphic organizers, and photographs that further illustrate subjects explored in the print version. .

Metamorphosis means change, and metamorphic rocks are rocks that have been transformed by heat and pressure. Chapters focus on explaining the forces that can change rocks, how metamorphic rocks are classified, and graphic organizers help illustrate how metamorphic rocks are part of the rock cycle. Graphic organizers, photographs, and videos in the interactive eBook version give readers a more in-depth look at the information covered in the print version. These features provide readers with interactive experience of the book. .

Igneous rocks form when molten rock cools and hardens. Readers will learn how differences in composition and cooling form different types of igneous rocks. Chapters include graphic organizers to help explain topics such as mountain formation, volcanoes, and how igneous rocks fit into the larger rock cycle. The interactive eBook version of this book includes high-interest information that expands on the topics covered in the print version. These additional photographs, videos, and graphic organizers provided an enriched experience of the book. .

Rocks break down through the processes of erosion and weathering. Readers will learn through graphic organizers and simple, at-level text what causes erosion and weathering, and how this process is part of the rock cycle. Chapters explore topics such as how erosion and weathering create landforms and form sediment. The human role in erosion and weathering is also explained: both how human actions can exacerbate these processes and steps people take to slow them down. Videos, photographs, and graphic organizers create an enhanced experience in the interactive eBook version. These features supplement the print version with additional high-interest information.

The rock cycle is a never ending process of rock formation and the breaking down of rocks. Chapters explain the classification of rocks and their place in the rock cycle as well as how rocks form and break down through erosion and weathering. Readers will also learn through engaging text and graphic organizers about minerals, volcanoes, and earthquakes, and how these things are part of an ever-changing Earth. In the interactive eBook version, readers will find more in-depth information on the processes in the rock cycle. Graphic organizers, photographs, and videos illustrate these topics, creating an enriched experience of the book.

Easy-to-understand text explains what minerals are and the different types.