What is Earth made of? That's a complicated question, but readers will discover this answer with a guided look at how Earth was first formed years ago and how it transformed into what it is today. Through a detailed main narrative filled with relevant examples and accessible explanations, readers strengthen their knowledge of this earth science curriculum topic. They'll explore the facts behind earthquakes and volcanoes, and learn about the complex ways human activity has shaped the physical earth. Detailed diagrams, helpful graphic organizers, engaging fact boxes, and attractive full-color photographs encourage readers to find the fun in science lessons.