Beneath our feet extreme pressure and heat inside Earth’s crust is constantly forming new, super-hard rock. Inside this book, readers will find a clear, accessible, step-by-step explanation of how igneous and sedimentary rocks can undergo incredible transformations to become a new type of rock called metamorphic rock. Readers will investigate the properties of metamorphic rocks and explore how these rocks have been used to create buildings and beautiful statues for centuries. Filled with information perfectly suited to the abilities and interests of an early elementary audience, this colorful, fact-filled volume gives readers a chance not only to learn, but also to develop their powers of observation and critical thinking. From stunning photographs to high-interest facts about metamorphic rocks, this book makes learning about Earth’s geology a lively, engaging experience.