The four of them are each given a question to answer at the end of their trip. What kind of water lives in the sky? What causes evaporation? What causes water droplets to form in the air? When is a river hidden from the sky?
This was an informative book that makes science and learning about the water cycle fun. There's also an experiment to make your own cloud at home in the back of the book, along with a glossary. This was an interesting way to approach science and I loved the illustrations.
Final Verdict: I thought this was the perfect book that teaches about science, but is entertaining and will hold a child's attention at the same time. I would recommend this to children who love science, adventures, THE MAGIC SCHOOL BUS, or lust like to learn new things.