A chemistry experiment conducted in E111 triggered a fire alarm this morning, forcing students and faculty to evacuate midway through first period. Chemistry teacher Kenneth Ma and his students were studying how metal oxides affected the colors of flames when the fire alarm rang. Ma stated that the lack of ventilation in the room caused particles released in the experiment to accumulate and set off the fire alarm. No one was injured and the evacuation lasted from about 8:37 a.m. to 8:54 a.m. Assistant Principal of Business and Activities Matthew Dultz stated that the evacuation lasted longer than usual because the fire department and administration wanted to exercise caution and inspect the rooms surrounding E111. Once the rooms were deemed safe, the all-clear bell rung and classes resumed.