I liked this book for two reasons. One reason I liked this book was for the way it was written. Children tend to think that informational books, especially ones about science may be boring. The way the author wrote this book made science more interesting. For example, there was a part of the book where the author was talking about gravity and used the example of a guillotine cutting off the head of a doll in order to explain the concept. I think that this helps children get interested in science. Another reason I liked this book was for the illustrations. Although this is a chapter book, there are a lot of drawings throughout the chapters. They are done almost like a comic book style and they're just really funny. I think that this helps make science even more interesting. Overall, I think that the purpose of this book is to teach children about gravity and other aspects of physics in a fun, interesting way. ( )