how to make things glow in the dark?

yesterday we went to room 7 for science intensive with Mrs Tofa we were learning about how things glow in the dark the materials we used are

- cup

- water

- high lighter ink 

- tape 

- miss cards mobile

- purple and blue marker

1. first we filed in an half way water in the cup 1/2.

2.then we putted in the ink of the high lighter and mixed it. the colours were green,yellow,orange and pink.

3.Miss card and Mrs Tofa used tape and put it on miss cards torch then they coloured it with an purple and blue marker on it to make an black light. After that Mrs Tofa took us to the dark room and turned on the torch then the cups were starting to  glow so we painted our hands and faces with it.