What is a coral reef? What does a coral reef consist of? Relatively speaking, what are the ages of Hawaiian coral reefs? What has made Hawaiian coral reefs unique? How are coral reefs built? How are coral reefs similar to rainforests? Where are coral reefs located? What long have coral reefs been in existence? What are the different reef zones and which abiotic factors differ in each? How can corals fool you? What are the different types of coral reefs? Are there different types of coral? What are they? Now that we know that corals are animals, which are their closest marine relatives? What is the difference between a soft reef and a stony reef? What are the abiotic factors in a barrier reef? Can you think of a local Hawaiian coral reef example? Name some of the fish that live in Hawaii’s coral reefs? What are the abiotic factors in a patch reef?