I Wonder Why the Sea is Salty and Other Questions About the Oceans, by Anita GaneriRead about the other entries on the list.
If you’ve ever gone to the beach with a curious kid who peppers you with questions all day and you’re not so sure on the answers, this is the book for you. Ganeri answers dozens of questions such as “What makes waves roll?” and “How deep is the ocean?” with clear explanations and lavish illustrations—some of them realistic, and others cartoons that share interesting related facts. For example, Ferdinand Magellan, whose crew was the first to circumnavigate the globe, ran out of food so they “had to eat cooked leather.”
--Marshal Zeringue