and Bones give an insight into what it is like to be on a crime scene. More importantly‚ these programs portray the semi-realistic process of catching a criminal. From investigating the crime scene to making the arrest‚ vital steps are taken to find the perpetrator‚ but the key to cracking the case lies in the evidence. The study of evidence is known as forensic science‚ which applies scientific information to the physical proof. The field of forensic science is vast‚ so scientists specialize
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1. What is forensic science? the application of science to the criminal justice system. 2. What three tasks or responsibilities does a forensic scientist have? collect and analyze the evidence found at a crime scene‚ apply the techniques from the physical sciences and use their knowledge of these areas in order to make sense of the evidence that has been collected from a crime scene‚ interpret the evidence. 3. What criteria might be used to establish someone as an expert witness? consideration
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Review Questions What is toxicology? the study of substances that cause adverse effects in humans or other organisms Who was Mathieu Orfila? a Spanish-born chemist who published one of the first written works dedicated to the topic of poisons and medications What is strychnine? What symptoms does it cause? It comes from the seeds of the strychnine tree‚ and strychnine poisoning can occur through consumption‚ inhalation‚ or absorption by mucous membranes. Symptoms are painful cramps and muscle
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History of Forensic Science Law Enforcement has used forensic science for years to help solve puzzling crimes. But not to many people know just how long the art of forensic science has been around. For example evidence of fingerprints were found in paintings and prehistoric rock carvings made by humans. The Chinese have probably used forensics much longer than most civilizations. For example back in the 700’s they used fingerprints to find out the identity of documents and clay sculptures. What made
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temperature‚ impurities‚ and deformation on Electrical Conductivity in which the Drude Model can’t explain. List two aspects of materials behaviour that the Drude and QFE models can’t explain but that Band Theory can. The Band Theory can explain why the outer electrons become delocalised and the semi conductivity. [2 marks for each part] 2 Using the Drude model‚ for platinum‚ calculate the number of delocalised electrons per unit volume‚ their thermal velocity at 20°C and the average
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Physical & Chemical Properties Data Table 1: Solubility or Reaction Substance Name Color Odor Effect of Heat Cold Water Hot Water Litmus test Dilute HCl Dilute NaOH Mg Silver None None None None Base Fizzes‚ gas‚ increased temperature None Cu Brown None None None None Base None None Zn Silver None None None None Base Fizzes None MgO White Slight odor None None Bubbles Base Dissolves‚ turns yellow‚ increased temperature None CuCO3 Green None Melts
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Chemical Properties of Ethylbenzene Property (Condition‚ Method) Synonyms Name Ethylbenzene; benzene; ethylbenzol; phenylethane; etilbenzene; ethylbenzeen; aethylbenzo; ethylobenzen Chemical Formula C8H10 Chemical Structure Table 1.1: The table of chemical properties of Ethylbenzene. Table 1.2 The table of the physical properties of Ethylbenzene. Chemical and Physical Properties of Styrene Property (Condition‚ method) Common Synonym Vinyl Benzene; phenylethene; ethenyl Benzene; cinnamene Molecular
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Report Submitted: February 17‚ 2013 Title: Physical and Chemical Properties Purpose: To investigate and learn the physical and chemical properties of pure chemical substances. Procedure: I used various different tools to investigate the different physical and chemical properties‚ such as blue and red litmus papers‚ beakers‚ and wells. Data Tables: Substance Name Color Odor Heat Effect Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Silver None None None Not soluble‚ small bubbles Red
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Nitrate No reaction Lead and Iron (III) Chloride Lead oxidizes Iron and Copper (II) Sulfate Iron turns pink College Chemistry 1 Unit 2 Lab 2 Chemical and Physical Properties Chemical and Physical Properties Introduction: I will figure out different chemical and physical properties of various chemical substances. Materials and Methods: I filled four different test tubes with a little bit of Magnesium. The first one I recorded the color and odor. Then I heated it
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in the world. There is a career for everyone. For instants Forensic science is one of them and there are many more. There are a lot of things that they had to do before they became a forensic science. They had to have an education and what they need to do. Like their responsibilities‚ pay and benefits‚ work and life balance‚ job prospects‚ and detailed budget. There many more that they have to do before they can become a forensic science. Responsibilities They have many responsibilities that they
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