This level 2 reader, written in simple language that is easy for young readers to understand, introduces children to our solar system, including all of the planets and dwarf planets, and lots of fascinating fun facts. This reader helps cultivate the explorers of tomorrow! This high-interest, educationally vetted series of beginning readers features the magnificent images of National Geographic, accompanied by texts written by experienced, skilled children's book authors. The inside back cover of the paperback edition is an interactive feature based upon the book. Level 1 books reinforce the content of the book with a kinaesthetic learning activity. In Level 2 books readers complete a Cloze letter, or fun fill-in, with vocabulary words.