This was probably one of the best Chemestry practise I have ever done! The emotionof seeing a green fire was incredible and the oportunity to take of photo of such a kind of fire it’s not a normal thing (I think). Bye the way I’m not quite sure if you can do this at home with something… but I would like to have some copper sulphate right now 😀 The copper sulphate it’s the thing that makes the fire go green, and the scarlet one is cause by Strontium nitrate (I hope it’s well-written).  Any way, we could also get a kind of violet fire but for such a short time that I couldn’t take a photo 😦