Some crystals look very similar but here are a couple of ways to tell them apart. The salt may look a little grayer than the sugar which may look whiter than the salt. The alum may sparkle a little ...

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 ...

Participants in the global experiment get the chance to investigate the properties of five widely available samples, ranging from sugar to Epsom salts, by dissolving, saturating and growing crystals.

but this isn’t always necessary (in our experiment, we dug our crystals out with a fork). We used Epsom salt, but you can use other solids, including table salt or sugar. These will each behave ...

The Carter Family: (l-r) Claire, Martin, Sarah, Nathan and the experimenter, Matthew, at the front When 12-year-old Matthew Carter saw how much sugar was in his favourite fizzy drink, he decided ...