The Science of a Flip Turn

Marc Notes: Includes index.; Age: 8-12.; Grade: 4 to 6. Contributor Bio:  Orr, Tamra B Tamra Orr is a full-time author living in the Pacific Northwest. She is the author of more than 400 educational books for readers of all ages. Her book on school violence was voted New York Public Library s best nonfiction book for teens. She has a degree in English/Education from Ball State University. Tamra has been fascinated with history all of her life and enjoys the chance to learn more about it when researching for a book. She lives in Oregon with her husband, four children, dog, and cat.