English, mathematics, social science, and other nonscience classes are being held in science laboratories during unassigned laboratory time. However, science laboratories are unsafe places. They contain hazardous chemicals, energy utility sources (gas, electricity, and water), potentially harmful equipment, and more. Students and employees who participate in nonscience instruction in a laboratory may be unfamiliar with these potential dangers and therefore may be exposed to an unsafe working environment. This month’s column addresses this issue and outlines some suggestions to help science teachers when confronted with this situation at the high school level.