About iOpener: A Guide to Rocks and Minerals

This book covers everything you need to know about rocks and minerals, including the different types of rocks, examples of key minerals, how to identify minerals, and what various rocks and minerals are used for today. A glossary and index highlight key terms and subject matter, while discussion questions aid in reading comprehension.

Grade: 4
Subject: Earth Science
Genre: Reference
Comprehension Skill/Strategy: Classify/Categorize
Diagnostic Reading Assessment (DRA/EDL): 40
Guided Reading Level: T
Lexile Level: 750L

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 and social studies topics to life, raises student achievement in reading, and boosts standardized test scores.