ELI5: Explain Like I'm 5

Glacier growing

Glaciers are like big mountains of ice that form when it is very cold and there is a lot of snow that does not melt. When snow falls year after year and does not melt, it piles up and creates a big pile of snow. This pile of snow gets so heavy that it gets compressed and turns into ice. This ice becomes so heavy that it starts to move slowly down the mountain.

Glacier growing happens when more snow falls on the mountain than melts during the summer months. When the temperature is cold enough, the snow that falls on top of the glacier stays there and is added to the pile. This new snow gets compressed and turns into ice, and the glacier gets bigger. As the glacier grows taller and wider, it becomes heavier and moves more slowly down the mountain.

But just like anything else, a glacier can also shrink if it gets too warm. When the temperature is warm, the ice melts and turns into water. If the amount of snow that falls on the mountain is less than the amount that melts during the summer, the glacier will get smaller and smaller over time. This is known as glacier melting.

So, in simple terms, glacier growing happens when there is more snow falling than melting, and glacier melting happens when there is more melting than snow falling.
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