In Mercury, early readers learn about the planet’s unique characteristics and composition. Vibrant, full-color photos and carefully leveled text will engage early readers as they discover the solar system. A labeled diagram further explores the makeup of Mercury, while a picture glossary reinforces new vocabulary. Children can learn more about Mercury online using our safe search engine that provides relevant, age-appropriate websites. Mercury also features reading tips for teachers and parents, a table of contents, and an index. Mercury is part of Jump!’s Space Voyager series.