Biology coursework How does the temperature affect the rate of reaction? Introduction For our experiments‚ I was investigating what affects the rate of reaction. We used Hydrogen peroxide to test the rate of reaction‚ with the temperature of this being our variable that we changed. Hydrogen peroxide is a clear‚ colourless liquid which has various amounts of uses within the laboratory‚ industrial purposes and even in our households. It is mainly used for cleaning products and hair dye but is
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Community Health Department Investigation Janae C. Anderson Kaplan University SC300-22 Big Ideas in Science: From Methods to Mutation James Fuller 3-11-2011 Community Health Department Investigation The Health Department received a letter notifying them of a possible health problem in regards to students at Truman and Jackson Middle Schools. It is my duties as a member of the investigative team to find out if there was an increase of absences and for what classes. In looking at the charts
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By y.c.pong Introduction: When you heat an egg‚ the egg white clump together and turned white. It is because the protein in egg white undergoes denaturation‚ the cross linkage(the hydrogen bonds‚ ionic bonds and disulphride bonds) which maintain the protein shape destructed‚ so protein lose its tertiary conformation. This denaturing process is very important‚ because before protein can be used in digestion they must be unfolded. Part A: denaturation of egg white Aim: To examine the factors
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What kind of training do you think language teachers need? Training in the field of languages has to be practical and goal-oriented. The training teachers received can lead to learn how to teach in “The same style”. According to Kasumoto (2011:31)‚ most teachers do not have a clear idea of the learning objectives and goals‚ hence they struggle to decide how much and what to teach. I should mention that the teaching profession today has been questioned by society‚ government‚ and media‚ a language
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Bread contains starch. The starch content in bread is derived from the starchy endosperm of wheat. Refined breads have the bran and germ removed from the wheat in order to produce softer‚ silkier flour. there is a lot more food containing starch like: Starchy foods such as potatoes‚ bread‚ cereals‚ rice and pasta should make up about a third of the food you eat. Where you can‚ choose wholegrain varieties‚ or eat potatoes with their skins on for more fibre. Starch is the most common form of
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Purpose of Experiment: The purpose of this experiment of to measure the velocity and acceleration due to gravity of a picket fence and to verify the acceleration due to gravity using the picket fence with Logger Pro and Photogate. Data: Trial # 1 2 3 4 5 6 Slope (m/s^2) 9.80 9.78 9.87 9.77 9.84 9.83 Accel. g (m/sec2) 9.80 9.78 9.87 9.77 9.84 9.83 Minimum Maximum Average Acceleration (m/s^2) 9.77 9.87 9.82 Acceleration due to gravity‚ g 9.82+/- 0.10 m/s^2 Precision 1
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Unethical Investigation The fourth amendment to the United States constitution tells us that ”the right of the people to be secure in their persons‚ houses‚ papers‚ and effects‚ against unreasonable searches and seizures‚ shall not be violated”. In other words‚ it is illegal for persons to go through your things without your consent or knowledge. This is fairly straightforward and simple‚ right? Not exactly! Patricia Dunn was accused of hiring private investigators to investigate members of the
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Nothing is more crucial to any investigation than the actions of the first officers on the scene and the actions they take regarding the preservation of the crime scene‚ detention of witnesses and an arrest if possible. The immediate objective of the first officers on the scene must be the safety of all parties involved and all else follows Crime scene preservation should be the most important step to any first responder. This protocol should continue to be followed by anyone who processes
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An Investigation of the Therac-25 Accidents -- Part III Nancy Leveson‚ University of Washington Clark S. Turner‚ University of California‚ Irvine Reprinted with permission‚ IEEE Computer‚ Vol. 26‚ No. 7‚ July 1993‚ pp. 18-41. Recall that the Tyler error occurred when the operator made an entry indicating the mode/energy‚ went to the command line‚ then moved the cursor up to change the mode/energy‚ and returned to the command line all within 8 seconds. Since the magnet setting takes about 8 seconds
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cene-hairs?page=0‚0 By Terry Melton Article Posted: April 01‚ 2009 Printer Friendly | Forward to a Friend | Share this | Terry Melton Forensic mitochondrial DNA analysis of hair shafts and naturally shed hairs is a tool to enhance the investigation of cold cases; this form of evidence historically has had severely limited utility. Many cold cases have been re-opened in hopes that DNA profiling of evidentiary material may strengthen a case against an existing but weak suspect or identify
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