The Cay Chapters 7 - 8 Activity 1 Build a diarama of a coral reef. The one pictured is made with salt dough, real coral, and shells. Coral reefs are underwater ridges or mounds built of coral, coral sand, and limestone.
Coral reefs are homes to thousands of different kinds of fish, sponges, algae, and mollusks.
Fish are attracted to coral reefs because they are a good place for shelter and their is a large source of food available.