PHYSICS
'(<a href="http://www.j-archive.com/media/2007-05-04_DJ_28.jpg" target="_blank">Sarah of the Clue Crew performs an experiment.</a>)  I'll put a coin in the bowl, but you won't be able to see it until I pour in water, which causes <a href="http://www.j-archive.com/media/2007-05-04_DJ_28a.jpg" target="_blank">this</a>, from the Latin for "to break"'
refraction