Wage a battle of fire vs. water in a live-fire experiment, based upon an actual laboratory test of sprinkler systems. Adjust a flame in the center of a fireproof glass enclosure. Manipulate the flame by turning on an overhead sprinkler system that sprays a fine water mist. Control the characteristics of the flame by adjusting the gas flow rate, and adjust the water spray by varying the amount of water and the size of the droplets. Finally, turn on the lasers to observe convection patterns (the circular air currents created by the interaction of the flame with the cooling influence of the mist).