In this lab‚ I calculated the heat of combustion of paraffin (candle wax) by burning a candle and holding a calorimeter (a soda can) filled with 98.7 mL of water above the flame. The heat released by the candle was absorbed by the water in the can. It was important to place the metal chimney around the candle so that minimal amounts of heat would escape; having too much heat lost to the atmosphere would cause extra error in the calculations. The assumption made was that all heat released from the
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As any high school junior or senior will tell you‚ the most common question students face is ‘what are your plans for after high school?’ This‚ rather weighted‚ question leaves students more concerned for their future. In the past‚ it has been stressed that only by going to college will a student become successful in the ‘real world.’ However‚ today students are faced with a multitude of choices regarding their future. Nevertheless‚ a college education has the ability to prepare students to be successful
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Stress is not sensible for the average American student. Our physical stress was biologically engineered to counter threats of the animal world and save our lives. Fight or flight reactions aren’t rational for stress over a class‚ but regardless‚ our bodies have the same psychological reaction to a test as it would to the threat of a grizzly bear (Scott). The limbic system‚ or the brain’s emotional center‚ contains the amygdala. This structure acts as an alarm system to screen any threats and communicates
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Amy Lee‚ the lead singer of former rock band Evanescence‚ is releasing a new album next month. The new album titled ‘Dream Too Much’ will be a 12 song children’s album inspired by her two-year-old son‚ Jack. Amy’s album started as a gift to her father‚ to spend time with him in the studio. He encouraged her to make some kid friendly songs for her son to enjoy and soon became a family affair‚ including her father‚ sisters‚ uncle‚ husband‚ and son. Most of the songs featured will be covers of famous
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The warm sun rays beaming down on the emerald stalks of corn‚ the bright light radiating on rolling fields of amber grain. Children screaming in delight throughout the country sides and cities. During those sensational‚ amiable months of summer‚ tucked inside practically every newspaper are calendars touting seemingly endless opportunities to attend weekly farmers markets. A new movement‚ deemed locavorism‚ is digging its spurs in the ground and taking root in communities worldwide. Instead of relying
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It is common for a written piece of literature to have a profound effect on one’s way of thinking. By shifting the thought of one person‚ literature can create a ripple effect and spread to others living in the same society. This shift aids in transforming modern society and propelling society to make appropriate modifications. A few pieces of literature that shifts one’s perspectives include The Ones to Walk Away From the Omelas (1991) by Ursula K. Le Guin‚ Salvation (1940) by Langston Hughes‚ and
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The focus of this article is the bias found in evolutionary and endocrinological studies. These studies serve the purpose of defining and tracing human nature through evolution and present times. Evolutionary studies address the description of human descent from primates. These studies seek to outline the sequence of changes and mechanisms of action that make up the evolution of humans from primates. The general theory of evolution is used to reconstruct history with facts and evidence from fossils
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Citizen Kane (1941‚ Orson Wells) was a very insightful movie. There could be much to write about on the narrative of this movie and has been for years. I am going to first write about the development of Charles Foster Kane. When we are first really introduced to him and his goals we meet him in Mr. Thatchers office where he turns down many wealthy holdings he was entitled to. Instead‚ Kane asks to run a newspaper. His reasoning is that he wants to “look after the interests of the underprivileged
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Epigenetics is the series of chemical modifications of DNA and its connected proteins that contain phenotypic information during cell division. These modifications alter gene expression without changing DNA sequence. They differ among tissues and change over throughout the organism’s lifetime. A well-understood example of epigenetic modification is DNA methylation‚ the process by which a methyl group is covalently bonded to cytosine. During DNA replication‚ a specific enzyme recognizes unmethylated
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Background Information: Spectrophotometry is a method that measures how much light is absorbed by using the electromagnetic spectrum. By seeing which colors are absorbed and which are reflected scientists can determine what a substance is without having to touch them. This is possible because each substance has a specific absorbance spectrum‚ meaning that the absorption spectrum of two different substances cannot be the same. Purpose/Hypothesis: 1. The purpose of the experiment was to determine
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