A fascinating nonfiction picture book full of facts about the moon and space--now in paperback! What is so great about having your birthday party on the moon? For starters, you can ride in a rocket with your friends and eat cake upside down. Your friends can celebrate with you for a whole month, which is only one day on the moon! Young partygoers can bounce and glide in a low-gravity playground. And any "moon angels" that you make will last for thousands of years. This entertaining adventure includes sidebars, a glossary, a selected bibliography, and suggestions for further reading. If You Had Your Birthday Party on the Moon is perfect for sharing at home and at school.