Does everything expand when frozen?



  1. 0 Votes

    No, not everything.  Certain chemicals act in different ways to heat and cooling.  Some expand and some contract when cooling.  Water would be the most interesting case of this.  Most materials actually expand when heated, whereas water and a select few do not, they contract.

  2. 0 Votes

    Water expands when frozen due to a change in it’s molecular structure — it arranges into a more crystalline shape which actually pushes the individual atoms farther apart. This causes it to expand as well as decrease in density. However, with other materials cooling will cause the atoms to move closer together as they lose energy.

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