Uncover the incredible world beneath your feet with this exciting practical book. Learn all about igneous, metamorphic and sedimentary rocks and the marvels of minerals. Deep inside the Earth, precious metals, beautiful crystals and rocks as hard as granite are created. Find out how new rocks are made, why mountains are formed, and what happens when a volcano erupts. See the strange and wonderful shapes of crystals and discover which minerals are used to make everyday things. 23 easy-to-do projects will show you how to test rocks for hardness, mimic mountain folds, see which rocks can float, create homemade concrete, make your own fossils, and much more. With over 350 stunning photographs and diagrams, and lively and informative text by an expert science writer, this is the perfect fun learning book for children. Ideal for home or school use for ages 8 to 12, this fantastic book will give your child hours of entertainment. Find Out About … is a series for young readers who want to explore the wonderful world of science. Each books covers a different topic, bringing the subject to life with vibrant photographs, illustrations and diagrams.