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 ...

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 ...

This experiment also demonstrates how you ... Melting, freezing, and boiling are also physical changes. Sugar crystals are made of many individual sugar molecules. Normally, sugar dissolves in water, ...

Through the experiment, we want to answer the question “What are the best conditions for growing crystals?” And we’re now looking for schools, groups and individuals to take part. The experiment, ...

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 ...