Since ice crystals are present, if you pour the supercooled water slowly on the ice cubes, you will see the ice crystals start piling up. This experiment works much like the previous instructions.

Ask questions: What other things could you use as a seed crystal for water crystallization? Modify the experiment: Repeat this experiment, but instead of putting the fruit pop into the supercooled jar ...

But pure water, which lacks those crystallization kick starters, can remain liquid to much lower temperatures, a phenomenon called supercooling.

This article was originally published with the title “Experiment on the Crystallization of Sulphate of Soda” in SA Supplements Vol. 37 No. 950supp (March 1894), p. 15186 doi:10.1038 ...

This article was originally published with the title “Water of Crystallization” in SA Supplements Vol. 22 No. 561supp (October 1886), p. 8964 doi:10.1038 ...

Crystallization experiments find that the resulting crustal thickness depends on water content and is consistent with significant water in the early Moon.