Rocks & Fossils

The natural world is made up of thousands of different kinds of rocks, gems, crystals, and fossils. They formed through a variety of geological processes, and many can be put to use. But how and which ones? This encyclopedia-style series--perfect for browsing and book reports--is packed with compelling entries that explore the geological world. Each page is filled with extraordinary photos and comprehensive text featuring real-world examples and fascinating facts about rocks and fossils. A final Review and Reflect feature allows readers to check for understanding and think deeper. From the never-ending rock cycle to the remains of ancient species that once walked on Earth, discover more about the natural materials that make up our world.