JoinTried and True: The blue bottle demonstration
The abilities to propose experiments, make observations, and use data to justify conclusions are critical to the scientific process (NRC 1996; NRC 2000). The Blue Bottle Demonstration provides an excellent platform for introducing these skills. The demonstration process allows the teacher to maintain control while guiding an inquiry into the chemical system. This involves students in an investigation early, even on the first day of class if the teacher chooses, before they have any experience in hands-on group activities.