NATS 1575 Lecture Notes - Lecture 4: Laminated Glass, Lightray, Refraction
24 Jan 2017
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Document Summary
Properties of matter and the analysis of glass. The forensic scientist must constantly determine those properties that impart distinguishing characteristics to matter by giving it a unique identity. Glass is crucial during the scene of a crime. Shattered glass can place a suspect at the scene of a crime. Shattered glass can be stuck in a persons shoe or garments from the scene of the crime. These possibilities require the comparison of glass fragments on the person/suspect and the one found at the scene of the crime. Physical properties such as weight, volume, color, boiling point, and melting point describe a substance without reference to any other substance. A chemical property describes the behaviour of a substance when it reacts/combines with another substance. Two components that mix together will have a colour change. Sodium when it dissolves in water can have a very reactive reaction. Scientists throughout the world use the metric system of measurement.
