this post was submitted on 06 Jul 2025
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[–] Tar_alcaran@sh.itjust.works 20 points 1 day ago (1 children)

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 7 points 1 day 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°