What Are Icebergs?
When a glacier, or river of ice, reaches the sea, a piece of it often breaks off, falls into the sea, and floats. These broken-off pieces of glaciers are called icebergs. Icebergs come in all sizes, from 20 feet across up to 200 miles across. Some icebergs rise as high as 400 feet above the ocean’s surface, but this is only a sm