Antarctica

I don't know what's the equivalent of middle school, 8th grade here in my country. "Antartica" is a general topic. Sorry to say this but your work is underdeveloped and has no clear focus.

1/ If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere.


2/ Antarctica is pushed into the earth by the weight of its ice sheets. If they melted, it would "spring back" about 500m (1 625 ft). It would do this v...e...r...y s...l...o...w...l...y taking about 10000 years to do so.


Scotland and Scandinavia are still rebounding today after the last ice age - at the rate of half a meter a century in the Northern Baltic - the fastest place.


3/ Antarctica is the best place in the world to find meteorites. Dark meteorites show up against the white expanse of ice and snow and don't get covered by vegetation. In some places, the way the ice flows concentrates meteorites there. The ice makes them gather in one place.


4/ The cold and dry conditions in the "Dry Valleys" region of Antarctica are so close to those on Mars that NASA did testing there for the Viking mission. It has not rained in the dry valleys for at least 2 million years.

5/ One of the biggest icebergs ever (possibly the biggest iceberg ever) broke free from the Ross ice shelf in Antarctica in 2000.

It was 295km (183 miles) long and 37km (23 miles) wide, with a surface area of 11,000 sq km (4,250 square miles) above water - and 10 times bigger below. It's similar in size to The Gambia, Qatar, The Bahamas, or Connecticut.


8/ A domestic deep freeze runs at about -20°C. The mean summer temperature on the great East Antarctica icecap is -30°C and mean winter temperature around -60°C. That's a lot colder than your freezer!

The lowest ever temperature recorded was at the Russian Vostok station. It was - 89.6°C


9/ When the Antarctic sea-ice begins to expand at the beginning of winter, it advances by around 40,000 square miles (100,000 square kilometres) per day, and eventually doubles the size of Antarctica, adding up to an extra 20 million square kilometres of ice around the land mass.

That's one and a half USA's, two Australia's or 50 UK's worth of ice area that forms, then breaks up and melts each year.


Reference www.coolantarrica.com