Reefs and Volcanoes: How Earth's Atolls Formed (Earth's History through Rocks)

"Did you know coral reefs--some of the most colorful and lively places on Earth--and volcanoes--some of the most fiery and dangerous places--have a very interesting connection? An atoll is a coral island surrounding a lagoon. Atolls are formed when a reef grows around a sinking volcanic island. This book explores the relationship between volcanoes and reefs and the "life" cycle of a volcanic island. Full-color photographs provide readers with connections to the text, and fact boxes and sidebars further explore topics related to the main text."--