By Pamela Walker, Elaine Wood
Nearly each person loves a great secret, and mysteries are the beef of forensic technology. The research of forensic technological know-how comprises the research and interpretation of proof to be used in a court docket of legislation. in contrast to 'pure' disciplines, forensics is an utilized technology that makes use of clinical rules to satisfy particular pursuits. some of the ideas and methods utilized by specialists are integrated into "Forensic technology Experiments". perfect for center and highschool scholars, this new full-color quantity good points 20 experiments that may support scholars get an organization seize on ideas within the box of forensic technological know-how. every one scan is a self-contained unit with its personal additional assets, counsel for the trainer, and hyperlinks to the nationwide technology schooling criteria. This source permits scholars to imagine independently and construct all alone base of technology wisdom.
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Glycogen turns brown-blue. Cellulose does not respond to iodine, so remains the brown-yellow color of the reagent. 2. Characterization of Types of Carbohydrates 13 The Benedict’s test yields a yellow, red, or green color that is a positive test for the presence of glucose and other simple sugars. Starch and glycogen are digested by the enzyme amylase into simple sugars, so they yield a positive Benedict’s test. In the solubility test, a visual examination of the carbohydrate shows whether or not it dissolves in hot water.
Connections The use of radioisotopes to date bones in forensic cases is new. In addition to lead-210 and polonium-210, other isotopes are also proving useful. Natural isotopes of hydrogen and oxygen, the two components of water, vary from one geographical location to another. These elements and others can be used to help determine the origin of remains. 4 in. (1 cm) a month. Analysis of isotopes in hair can show where a victim has lived in the last few months of his or her life. This information can be helpful in establishing the identity of unknown remains.
Repeat these calculations for students wearing jeans. Record your answers on Data Table 1. 44 FORENSIC Science experiments Data Table 1 A. N umber students in classroom B. P ercentage of students in classroom with this evidence C. P robable number of students in school with this evidence Black shirt Jeans White athletic shoes 4. Repeat these calculations for students wearing white athletic shoes. Record your answers on Data Table 1. 5. Find the probability that a student in your class is wearing a black shirt, blue jeans, and white athletic shoes.