Fish live and breathe in water, have slimy bodies and are cold-blooded. There are many kinds of fish, some have bones, but others only cartilage.
Angelfish are brightly-coloured, flattened fish. They live in coral reefs in tropical seas, and are plant-eaters.
Eels have a long, snake-like body. Some of them can make electricity. Many eels migrate over long distances to breed or eat.
Goldfish have orange scales and long, flowing fins. They were domesticated over a thousand years ago by the Chinese.
Rays are very flat fish closely related to sharks. The biggest ray is the Manta Ray which is over 7 m long and weighs many tons.
Seahorses can change their colour to hide themselves. The male seahorse carries the eggs in his pouch until they hatch.
Not all sharks are meat-eaters and dangerous. The Whale Shark is the largest fish. It is up to 14 m long and weighs up to 15 tons.
Check out other resources on the topic! This unit includes both online and printable materials that can help kids learn and practise English in a fun way.