One of the Two-Minute Drills that I organized for my class on Monday evening involved a demonstration using water, food coloring, and bleach. You fill a clear glass with water (about half full), add a drop or two of food color to represent sin, stir, and then add bleach to make the color disappear, representing the effect of God’s grace. Many catechists and Sunday school teachers use this demonstration to show how grace dispels sin. Here are some examples:
I could swear that I’d done this demonstration before and the water immediately became clear after I poured in the bleach…but maybe I’m dreaming! I tried this at home before class on Monday and the bleach only made the colored water lighter and very slowly made the water clear. I tried various food colors: red, green, even black, but they all worked (or didn’t work) the exact same way. The same thing occurred in class…it was very un-dramatic.
I’m not sure if I did something wrong or if I’m thinking of some other demonstration that has a more immediate and dramatic effect. Any thoughts or suggestions?