The bestselling science series of all time! Rock collecting has never been quite like this! When the class forgets to do its homework, a fieldtrip through the Earth's crust, into the center of the Earth, and out through a volcano will teach them not to forget their assignments again - and then some! 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: 9780590407601 Page Count: 40 Trim Size: 10 x 8-3⁄8 Pub Date: May 1989 Fiction / Nonfiction: Fiction Ages: 4 - 8 Grades: Pre-K - 3 Imprint: Scholastic Press Subjects: Discovery and Learning, Field Trips, Geologic Eras, Magic and Supernatural, Rocks, Soil, Minerals, Volcanoes Genre: Adventure, Informational Text Language: English Guided Reading Level: GR Level P Lexile® Measure: 500L Return Restrictions: Non-Strippable Return Restrictions: Non-Strippable