Glaciers make noise because they're like giant slabs of ice that are constantly moving. When the ice rubs against rocks or other parts of the glacier, it makes sounds, kind of like when you walk across a floor with your socks on and your feet slip a little. Sometimes glaciers even crack loudly, just like breaking glass!
Why Do They Move? Glaciers move very slowly because they're heavy and cold. As snow keeps falling on top of them, the weight pushes the ice down and forward. This [movement](/search?q=movement) causes different parts of the glacier to shift and make noise.
Examples
- A crack splits the ice with a loud boom
- The glacier grinds down rocks below like a heavy truck on gravel
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See also
- Why Do Glaciers Move?
- When a Tiny Land Bridge Triggered an Ice Age?
- What are moraines?
- How do carbon capture technologies combat climate change?
- How do carbon capture technologies reduce atmospheric CO2?