Who Killed the Flowers?
About the Who Killed the Flowers? Lesson
In this science lab, students will test artificial urine made from ammonia, vinegar, and food coloring to discover who urinated on some flowers in the school greenhouse.
• Students will conduct various tests on known urine samples to identify characteristics of urine.
• Students will identify the owner of an unknown, artificial urine sample.
During a criminal investigation, urine can be a source of important information. Urine discovered at a crime scene might provide some useful evidence. Because the chemicals in urine can vary from one individual to another, urine can be unique enough to positively identify a suspect.