Science! For Parties- The Invisible Licorice

Welcome back readers to Science! For Parties. In this edition, we put a new twist on an old trick. You all remember our previous post Backwards When Wet where we showed you how to change the direction of an arrow using only a glass of water. Well consider this post a spiritual sequel to that one, but in today’s entry, we are going to use that same principle of light refraction we learned before to make a piece of licorice disappear.
Just like last time, you’ll need a clear glass, but for this...