Find out all about Planet Earth by asking some clever questions!What makes the ground shake? How hot are lightning bolts? And what IS at the end of a rainbow? Discover the answers to these questions and much more in Clever Questions: Planet Earth!Discover the world with these fun, child-friendly question and answer books on high-interest topics. Along the way, readers will discover fascinating facts to remember and share, as well as learn key science and geography information.Books in the series: Animals / Dinosaurs / Human Body / Planet Earth / Rainforest / Robots & AI / Space / Technology