What is an iceberg?

An iceberg is an enormous piece of ice floating in the sea. “Berg” is the German word for mountain. In the coldest parts of the earth, around the North and South Poles, land and sea are both covered by sheets of ice, over 300 metres deep at the centre.<br />
Tongues of ice, called glaciers, stretch out into the open waters of the oceans. The sea water melts the bottom parts of these glaciers, then the top part slides into the water with a mighty roar. The great piece of ice sinks for a short time beneath the surface then it rises again, and floats away as a new iceberg. Some icebergs are miles across to begin with, and travel for thousands of miles and several years before they finally melt. The part of an iceberg which can be seen above the water is only about one-ninth of the total size. The rest is hidden beneath the waves. One of the world`s worst disasters at sea was in 1912 when the liner “Titanic” collided with an iceberg on her maiden voyage.<br />
Task 5 <br />
1. What does the text tell us about?<br />
2. What is an iceberg?<br />
3. What does the word “berg” mean?<br />
4. Where can we find the land and sea covered by sheets of ice?<br />
5. What makes the bottom parts of the glaciers melt?<br />
6. What happens to the top part of the glaciers?<br />
7. What size of iceberg can be seen above the water?<br />
8. Where is the rest of iceberg hidden?<br />
9. When did the “Titanic” ship get an accident?<br />
10. “…before they finally melt. (Fourth sentence, paragraph two). What does the word “they” refer to? <br />
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What is an iceberg?