Station 9 Forensics
Scientific Principles Involved:
Fingerprint Analysis: Forensic scientists use fingerprints as a form of identification because each person has unique ridge patterns on their fingertips. These patterns are formed during fetal development and remain unchanged throughout a person's life. By examining the patterns, shapes, and minutiae (details) of fingerprints, investigators can identify individuals and link them to a crime scene.
Lifting Fingerprints: At the Forensics Station, students will experiment with household items to lift fingerprints from surfaces. Common methods include using powders, tapes, or specialized fingerprint brushes to reveal and collect the fingerprint impressions left behind. Once lifted, the fingerprints can be examined under magnification or compared to known samples to identify potential suspects.
Comparative Analysis: Using pre-made fingerprint samples on display, students will compare the lifted prints to determine who touched a plastic cup or other objects. They will analyze the patterns, ridges, and other characteristics of the fingerprints to match them to the known samples. This process enhances students' observation and analytical skills as they apply scientific methods to solve a mystery.
Observation and Analysis: Forensic science relies heavily on careful observation and analysis of evidence. Through hands-on activities at the Forensics Station, students will develop these essential skills as they examine fingerprints and draw conclusions based on the evidence. They'll learn about the importance of attention to detail and the role of forensic science in solving crimes and delivering justice.