Build your child\'s reading confidence at home with books at the right level Reefs are some of the most amazing habitats on earth, home to exotic fish, colourful corals, turtles and even sharks. Explore the reefs like a diver, and learn about how they formed, how they work, and how we can keep them safe for future generations to enjoy. Pearl/Band 18 books offer fluent readers a complex, substantial text with challenging themes to facilitate sustained comprehension, bridging the gap between a reading programme and longer chapter books.Text type: An information bookCurriculum links: geography, science