Gummi Bears

This lab never ceases to fascinate the students.  We soak a Gummi Bear overnight in cold tap water and then observe the results.  I use this lab to teach the difference between qualitative vs. quantitative data. 
Someday, I hope to have a group of students who will investigate the reactions in other liquids.  I would love to know how they react in Kool-aid, salt-water, etc.