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! Count on Ms. Frizzle to teach anything but an ordinary lesson on meteorology. Flying through the clouds in the Magic School Bus, Ms. Frizzle's class experiences a hurricane-and even a tornado-firsthand. During their thrilling ride through the sky, Arnold gets lost! Will the Friz be able to save the day this time?