The best roller coasters have plenty of loops and sudden turns. It’s almost impossible to keep from being thrown to the side as you whip around curves and twist along the tracks. That’s all part of the fun! This book highlights many of the forces that combine to create such wild and thrilling rides. HI-LO/reading level grade 3, 32 pages each, full-color photographs, paperback. Save $1 per book when ordering 10 or more copies.