We all know something about icebergs: only about 1/10 of an iceberg is above water, and ships do best to avoid them.
But here are a few more bits about these pieces of ice: they generally range from 1 to 80 yards above sea level and weigh from 100,000 to 200,000 tons. They can float along at 10 miles per day. The tallest iceberg on record was 550 feet above sea level.
The overall biggest, however, was the one that broke off the Ross Ice Shelf back in 2000. It was over 180 miles long and 23 miles wide. The scientists gave it the rather dull name of B-15, and estimated it to weigh over 3 billion tons.
After 10 years it still hasn’t melted, although it has fractured into several smaller sized chunks.
