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科学素养与生活应用·英语30篇(9)

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Why Ice Floats on Liquid Water

Why Ice Floats on Liquid Water

为什么冰能浮在液态水上

  1. Most solids sink in their own liquids, but ice is different.
  2. When water freezes, its molecules form open hexagon shapes.
  3. This makes ice less dense than cold liquid water.
  4. So ice floats and insulates lakes in winter.
  5. Fish survive below because water stays liquid underneath.
  6. This strange fact keeps Earth's life possible.
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