One of the staples of kitchen chemistry for kids is making sugar crystals or rock candy. Why not? It is educational and it tastes good, too. [Science with Screens] has a different kind of crystal ...

and a lack of crystal development typically means that you didn't use enough sugar. In this case, you can reheat the rock candy syrup and add more sugar until you achieve the proper consistency ...

Unless you're making rock candy, this phenomenon is ... and keeping the pot on low heat until the sugar has completely ...