Big Fire, Little Candle

The cherubs were engrossed in performing an experiment that will eventually lead to finding the percentage of oxygen in the atmosphere. To do this, kiddoes substituted water for air and measured the volume of a test tube. Then, they placed the test tube over a lit candle, resting in a dish of water. The result, fire goes out and the expelled oxygen is replaced by water sucked-up into the test tube. All very melo-dramatic.