This lab safety warm-up exercise focuses on identifying and listing safety hazards present in a laboratory setting. Students are required to analyze a scenario involving a scientist preparing a 'Mystery Blue Liquid' without any personal protective equipment (PPE). The activity includes sketching the scene as a means of visual analysis, followed by a checklist of necessary safety gear such as safety goggles, lab aprons, and protective gloves. Students will engage in an error analysis to pinpoint at least three safety risks depicted in their sketches. Additionally, they will participate in a reflective exercise using the 'See-Think-Wonder' framework, allowing them to articulate observations, thoughts on hazards, and inquiries regarding the unknown substance being prepared. This educational resource aims to promote awareness of lab safety practices and critical thinking skills in a scientific context.