To celebrate its 20th anniversary, Scholastic is re-releasing the ten original Magic School Bus titles in paperback. With updated scientific information, the bestselling science series ever is back! Arnold has swallowed the Magic School Bus! Now, instead of seeing an exhibit of the human body at a museum, the class is taking a look at Arnold's stomach, his intestines, his bloodstream, and more from the inside on this heart-stopping fieldtrip - one the reluctant Arnold would be happy to miss. Don't miss the all-new Magic School Bus: Rides Again book series and the animated show streaming on Netflix now! Product Details Format: Trade Paper, Picture ISBN: 9780590414272 Page Count: 40 Trim Size: 10 x 8-3⁄8 Pub Date: October 1990 Fiction / Nonfiction: Fiction Ages: 4 - 8 Grades: Pre-K - 3 Imprint: Scholastic Press Subjects: Discovery and Learning, Field Trips, Human Body, Magic and Supernatural Genre: Adventure, Fantasy, Informational Text Language: English Guided Reading Level: GR Level P Lexile® Measure: AD73