Glaciers and Icebergs

#glaciers #climatechange #icebergs #ngscience
ngscience.com
A glacier is a big, slow-moving mass of ice, created from squished-together snow. These glaciers, made of freshwater ice, are often found on high mountains where it's cold enough for them to stay frozen. Over many years, glaciers move bit by bit down these mountains.
When glaciers move, they don't just slide neatly. They drag rocks and dirt with them, slowly altering the landscape beneath them. This process is known as erosion. Even after a glacier has moved on, its path can still be seen because of the erosion it caused.
When a glacier travels down a mountain into a warmer area, it starts to melt. The ice turns into water, adding to rivers and lakes it encounters on its journey.
At times, glaciers can travel all the way to the ocean. Once there, chunks of the glacier can break off and float away. These floating ice chunks are known as icebergs.
Icebergs can be of all sizes. Some are as small as a bus, while others can be larger than a football field. But remember, what we see of an iceberg is only a small part. Most of an iceberg hides below the ocean's surface.

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