Mysteries of the Sun is aligned to the Common Core State Standards for English/Language Arts, addressing Literacy.RI.3.4 and Literacy.L.3.5c. Readers explore the many mysteries of the sun in this book with color photographs paired with narrative nonfiction text. This book should be paired with "What Makes the Sun So Hot? (9781477725429) from the Rosen Common Core Readers Program to provide the alternative point of view on the same topic.