http://www.sciencekids.co.nz/experiments/glowingwater.html
Tonic water doesn't look very strange under normal light but what
happens when you look at it under a black light? Does the dye from a
highlighter pen do the same thing? Find out what happens and why it
happens with this cool experiment that you can do at home.
What you'll need:
-A black light (you can find them at places like Walmart and hardware stores, as well as online stores like Amazon).
-Tonic water or a highlighter pen.
-A dark room to do the experiment.
Instructions:
1.If you are using a highlighter pen carefully break it open, remove the
felt and soak it in a small amount of water for a few minutes.
2.Find a dark room.
3.Turn on the black light near your water, how does it look?
What's happening?
