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  2. 2.  Melt: (V) /mɛlt/ to become or make liquid; dissolve  Ex. the ice melted and became water  Snow: (n) /snəʊ/ precipitation from clouds in the form of flakes of ice crystals formed in the upper atmosphere  Ex: the most beautiful thing in the winter is the snow.  Hole: (n) /həʊl/ an opening made in or through something  Ex: the hole in the street is very large and dangerous  Inch: (n) /ɪntʃ/a very small distance, degree, or amount  Ex: an inch is a very short distance  Sink: (v) /sɪŋk/ to descend or cause to descend, esp beneath the surface of a liquid or soft substance.  Ex: the titanic sank and many people died  Chunk: (n) /tʃʌŋk/ a thick solid piece, as of meat, wood, etc  Ex: a chunk of glacier breaks off and forms an iceberg.  Sharp: (adj) /ʃɑrp/having a keen edge suitable for cutting  Ex: the knife is very sharp
  3. 3. An iceberg is a large chunk of ice broken off from a glacier . They can be very large but only 10 percent of an iceberg sits above the surface of the water.
  4. 4. It is characterized by a climate dominated by low temperatures, eternal snow, and impressive atmospheric and magnetic phenomena.
  5. 5. Polar bears are one of the largest predators in the northern hemisphere. They rule the icy area north of the Arctic Ocean and they feed on seals, manatees and sometimes even beached whales
  6. 6. Penguins live only in the southern hemisphere, where they have no natural predators on the continent
  7. 7. The Arctic region is in the North Pole and has a natural melting cycle during which almost half of the ice shelf melts in summer, and then refrozen in the winter and return to their original size.
  8. 8.  The South Pole is much colder than the North Pole. The Antarctic does not show the same regular melting cycle because its ice sheet is about the same size and shape throughout the twelve months of the year. Recent studies have also shown that the Antarctic is melting, but not because of natural processes, but by the effects of global warming.
  9. 9.  Global warming has now caused the melting of the North Pole and with this we have a total imbalance in the ecosystem, bringing with it consequences for all living beings on this planet. Thanks to the presence in the atmosphere of CO2 (carbon dioxide) and other gases responsible for the greenhouse effect of the solar radiation that reaches the earth is held in the atmosphere.
  10. 10. Icebergs are dangerous to passing ships because they are difficult to detect because it usually about 90% of the iceberg is under water. Also the edges of the icebergs are very sharp due to the very low temperatures and can be easily cut the hull boat. Look what happened to the Titanic!
  11. 11. THANKS