When renovations or new construction occur, fire extinguishers sometimes get lost in the mix. Unfortunately, whether to save money or because the fire code is misinterpreted, some schools do not install fire extinguishers in laboratories and other areas of the building. Let's set the record straight! If flammables are present, the fire code requires the presence of fire extinguishers--even if other fire-suppression equipment, such as a sprinkler system, is available. This month's column helps science teachers apply prudent professional and legal practices when working with combustible and flammable materials. (Contains 1 figure and 3 online resources.)