Coral reefs.
Explain how a coral reef is made.
- Corals are many tiny animals.
- As each animal grows it makes a hard wall all round it.
- When it dies the hard wall is left and another animal grows on top.
- Over thousands of years the corals grow bigger and taller.
- They cover the sea bed for many kilometers.
- This is called a coral leaf.
Describe what a coral reef looks like.
Coral reefs look like underwater gardens. The corals look like small plants and bushes. There are corals in every colour of the rainbow. But they are not plants. Corals grow in many different shapes. Some corals look like objects. There is star coral, rose coral, finger coral and sea fan coral. Some corals do not build reefs. These are the soft corals.
