Voice Analysis Forensic Lab Engage grades 7-12 students with this Voice Analysis Forensic Lab! Students analyze recorded voice samples to identify a "suspect" in a mock crime scene. Using free audio software, they examine pitch, tone, and speech patterns to compare evidence. Aligned with NGSS, this lab includes clear instructions, data sheets, analysis questions, and teacher notes. Ideal for classroom or homeschool, it builds auditory observation and forensic skills. Low-cost materials ($2-$4).