This month's column features two true stories about the use of chemicals in the middle school science classroom. The lesson of these stories is simple. Certainly, it is prudent to have age-appropriate experiences in science, given the developmental constraints of students in middle school. On the other hand, when the curriculum necessitates experiences to support concepts, theories, and ideas, a little investigation into materials or chemicals used in best practice will help you decide what is best for your classroom. (Contains 1 resource.)