Unit 3
[Listen and Write]
Oceans make up a large part of the earth’s surface. All kinds of fascinating life form can be found in the oceans. Some plants are so small that you would need a microscope to see them. Other animals, like the blue whale, are enormous!
Scientists divide the oceans into four layers to study. Most life forms are found in the Sunlit Zone. The second layer, the Twilight Zone is colder and darker than the Sunlit Zone. The deeper you go into the ocean, the fewer life forms you will find.
Scientists have learnt much about oceans but the deepest layers of the oceans are still largely unexplored. Hence, they hide many mysteries and amazing creatures.

[Memorized Dictation]
The crabs are moving quickly. The octopus is gripping its prey tightly. The stingrays are dancing gracefully in the water. The prawns are moving about beautifully. The shark attacks suddenly. The cuttlefish cleverly changes the colour of its body to protect itself.