THE history of the various views held by different experimenters on the nuclear action of substances in exciting the sudden crystallisation of a supersaturated solution, has been already so well ...

THE precipitation of silver chromate from its supersaturated solutions has been studied by van Hook 1, who concluded that crystallization could be represented as a two-step process: first ...

In the 1890s, the German chemist Wilhelm Ostwald recognized that supersaturated solutions often preferred to transform into a metastable intermediate phase rather than a thermodynamically stable ...

More information: Yong Chan Cho et al, Impact of molecular symmetry on crystallization pathways in highly supersaturated KH 2 PO 4 solutions, Nature Communications (2024). DOI: 10.1038/s41467-024 ...

The second is the supersaturated solution (aka crystallisation-type) hand warmer, which involves a little more work on your part. You immerse this in hot water until it has absorbed the heat.

Let's take advantage of the holiday weekend and teach the kids how to make their own decorations with science!