What forms of transportation are used on land? How do ships stay afloat? Which aircraft don't use wings to fly? Curious young readers are in for a fascinating treat as they explore the world of vehicles and transportation. Featuring compelling facts and answers to questions that children often ask, this new book in the Do You Know? (TM) series encourages children to begin their own journey of learning and finding out more. Take a peek under the hood of a car, trace the timeline of sailing vessels from past to present, and discover the amazing aircraft that take people into the air over land and across oceans! Every Do You Know? (TM) book includes labeled illustrations, thought-provoking information, review sections, and an index of key terms.