Discover the structure of the Earth, from its red-hot inner core to the mountains, deserts, and oceans that cover its surface. Learn why we have seasons, how the water cycle works, and why our population is growing. What is Earth? Why do we need soil? DK findout! Earth presents key geography facts in a fun and exciting way so young readers can dive into the wonders of planet Earth. From earthquakes to mountains, volcanoes to rivers, and ecosystems to the rock cycle, this book tackles core curriculum and STEAM topics with content that is accessible and appropriate for children 6-9 years old. Series Overview: The DK findout! series helps kids ages 6-9 become experts on their favorite subjects--from dinosaurs to Ancient Rome to computer coding. Each book focuses on a specific topic and makes learning fun through amazing images, stimulating quizzes, and cutting-edge information kids are eager to know.