

Hi, I'm Amy O'Donnell, an educator at the American Museum of Natural History. I am fascinated by coral reefs and the creatures that live near them.
Did you know that giant coral reefs are built by thousands of tiny organisms called coral polyps (pah-lips)? The outside layer of a reef is alive. A coral polyp produces a cup-shaped skeleton around itself. The inside layers of a reef are made of the skeletons of dead coral, some of which lived millions of years ago.
Today, I'm going to show you how to make a model of a coral reef called a diorama, a 3-D scene set against a painted background. Dioramas come in many sizes. Like Museum scientists and artists, I love to make scientific models of different kinds of organisms from interesting materials in my classroom. I use these models to help people understand how these creatures live and their amazing body forms.
What's a Museum Diorama?
Cool Coral Facts
Image Credits:
Photos: Brain coral: courtesy of ReefNews, Jonathan Dowell; Fan coral: courtesy of Paul Janosi; Sea anemone: courtesy of California Academy of Sciences; Sponges: courtesy of REVEL Project, University of Washington; Andros Coral Reef: courtesy of AMNH, Denis Finnin; Supplies, What to Do (all photos); Amy's Extras (all photos): courtesy of AMNH; Illustrations: Sean Murtha