This book covers everything you need to know about constellations, stargazing, and star maps. Diagrams, fun fact boxes, and photographs bring the subject to life, while a glossary, an index, and discussion questions aid in reading comprehension. Grade: 6 Subject: Earth Science Genre: Reference Comprehension Skill/Strategy: Comprehend/Take Notes Diagnostic Reading Assessment (DRA): 60 Guided Reading Level: W Lexile Level: 920L DK's iOpeners equip K-6 students with the skills and strategies they need to access and comprehend nonfiction so that they are not only learning to read but reading to learn. The combination of high-interest content and eye-popping photography of iOpeners brings science, math and social studies topics to life, raises student achievement in reading, and boosts standardized test scores.