• Tar_Alcaran@sh.itjust.works
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    8 days ago

    Ah I recall my “science” teacher when I was 13 explaining to us that all materials expand when heated and shrink when cooled.

    So I ask how ice floats, or how ice cubes swell above the tray.

    • psud@aussie.zone
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      8 days ago

      And a good teacher would have told you that water freezing is one of the weird cases, as water has a less dense solid form than its liquid form. Although even water is less dense at 2° than at 20°