Today I learnt heaps of fact about Glaciers. Here are some of the facts. As the snow continues to fall it piles up into a thick white blanket. The first flake to land on the ground becomes squashed under the weight of those that follow. Slowly, under it's own weight, more and more snow turns to solid ice as all the air is squeezed out. Over months and weeks and sometimes years the ice builds up into a thick slab that fills the valley floor. The ice is very heavy and slippery and sometimes really really dangerous. Slowly it begins to move down the slope. A river of ice is better known as a glacier moves very gradually. Most of the glaciers would take about to slide the length of a classroom. I learnt that the upper surface is criss - crossed with deep cracks called crevasses. I thought that this book was really intresting and there was some really cool facts. The thing I would like to find out about is that why aren't all the glaciers have a snout that moves downhill.
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