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Unformatted text preview: Physical Properties Physical Properties Glass and Soil Glass and Soil Goal Goal • Individualize evidence to a single source ( individual characteristic) • Greater evidential value with unique identity • Scientist searches for distinctive properties on the road to individualizing evidence Properties Properties • Definition: Identifying characteristics of a substance • Useful in characterizing evidence • Glass and soil • Glass is combination of earth materials like sand • To understand nature of properties, begin with broad categories I. Background I. Background • A. What are the two broad categories of properties? – Physical and chemical I. Background I. Background B. Physical properties describe substance without reference to any other substance 1. Five physical properties are- color- weight- volume- melting point- boiling point I. Background I. Background • 2. Chemical properties describe behavior of a substance when it combines or reacts with another substance • Example: Marquis spot color test for heroin PDF Created with deskPDF TS PDF Writer - DEMO :: http://www.docudesk.com Mass vs. WeightMass vs....
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This note was uploaded on 02/03/2012 for the course CHEM 207 taught by Professor Bacon during the Fall '11 term at Ferris State.
- Fall '11