Last term when we grew crystals in the solubility topic, initially, my crystals didn’t grow very well, so I looked online for tips on growing crystals and generally about properties of crystals. I read an article about triboluminescence and was very curious to see it for myself. So I grew some better crystals (with food colouring added) and I tried crushing them in the dark and it was very fascinating. So I decided to read up some more about why it happens and over the half term, I wrote up a little report on it.