This could be a fun science fair project someday :) Ants stomachs are transparent. a woman noticed it when ants drank/ate spilled milk one day so she gave them some colorful candy and then photographed them!
Water, jar, dish soap= tornado in a jar. Pinner: Used a baby food jar and this didn't really work. Used a prego jar and filled with water to about an inch from the top and added a couple drops of dish soap. Fun to see the Tornado.