[Tyndall]

For my teacher's birthday in February I want to do a chemical experiment, I was looking for one that were really shiny (the coolest one I can find) and that were completely reversible through a mechanical action, for example by stirring or agitating it.

I have a couple of friends so I can essentially use any kind of inorganic or organic compound, I just want something that looks cool and shiny and that I can reverse mechanically to show off many times without having to bring five bottles of reactives along with me.


P.S: I'm allergic to some sulphur compounds (they make me really dizzy), and thanks!

[antimatter101]

Iodine clock