Discover 1156 fantastic Earth facts with this incredible book! Why do tornadoes twist? What is the deadliest volcano? Where can you watch the Northern Lights? Plus, you can have fun with the activities, test your knowledge with the quizzes and read extraordinary information in the 'Did you know?' boxes.rnrn- Hundreds of illustrations, photos and cartoonsrn- 1156 numbered factsrn- Quizzes, puzzl…