Did You Know?

Corals can glow in the dark!

Coral Reefs

Coral reefs are homes for fish.

How Corals Grow

Corals grow by making hard shells.

What coral Does

Corals give fish a safe place.

They help clean the water.

Corals can live for many years.

They need warm, clear water.

Corals come in many colors.

They can be very small or big.

More About coral

Corals have been here for a long time. They first grew in the ocean many years ago. They are still here today. Corals make reefs that are very big.

Corals help our ocean life. They give fish a home and food. Without corals, many fish would not have a place to live.

Corals are very cool! They can change colors. Some corals can even glow at night. We need to take care of them!

How Topics Connect

graph TD A["Corals"] --> B["Colonial Marine Invertebrates"] B --> C["Subphylum Anthozoa"] B --> D["Phylum Cnidaria"] A --> E["Compact Colonies"] E --> F["Identical Individual Polyps"] A --> G["Reef Builders"] G --> H["Secrete Calcium Carbonate"]

What Do These Words Mean?

colonial:living in groups or colonies
invertebrates:animals without a backbone
phylum:a major group in the classification of living things
polyps:small, tube-shaped animals that are part of coral
calcium carbonate:a chemical compound that makes up the hard parts of corals