The crystals start to appear show that crystallization has just occurred.
What is crystallization?
Crystallization refers to the process by which a solid separates from the solution. Crystallization can be induced by;
- Scratching the vessel
- Adding some seed crystals to the solution.
Hence, when you take a metal spatula and scratch the side of the glass vessel that contains this cooled solution, and crystals start to appear, crystallization has just occurred.
Learn more about crystallization: https://brainly.com/question/816377
