A substance can crystallize water [Source: Swanson School of Engineering/Sachin Velankar]
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![A substance can crystallize water [Source: Swanson School of Engineering/Sachin Velankar]](https://static1.squarespace.com/static/509c281de4b0cd18c7335aab/t/5bb520f271c10b7ebdf99086/1538597108344/?format=1000w)
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