加入Frizzle女士和她的学生们，和他们一起跟随水的痕迹，从天际高的水源到学校的浴室水槽，在这潮湿野外开始探险吧。 在云上停好车，缩小雨滴的大小，孩子们还可以从水的视角探查水厂哦。

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! The classic title that started the award-winning series! Join Ms. Frizzle and her students as they follow the trail of water, from its sky-high source to the school bathroom sink on this wet and wild fieldtrip. After parking the school bus on a cloud and shrinking to raindrop size, Ms. Frizzle's class gets to see the waterworks from the water's point of view.