Lab Report Example | Topics and Well Written Essays - 500 words

Lab Report Example inch from the bottom of the crucible and it was isolated with the help of a glass fiber to make the cooling process of the sample retard. This gave the experimenter enough time to collect the data required (the change of temperature versus time). Every 5 seconds, the temperature was noted until the sample of melted Tin reached a temperature near 150C (10C above the freezing point of pure Tin) in order to prevent the thermocouple sheath from freezing. After the data was collected, a plot of temperature versus time was developed. The plot took the form of a curve, which is the Tin-cooling curve. The curve shows the cooling process,. Abstract: This experiment was directed at determining the melting point of pure Tin. For this purpose, a ceramic crucible containing pure Tin was heated in a furnace up to the temperature that was expectedly above the melting point of pure Tin. Once that was achieved, the sample of liquid Tin was put into a container that was filled with sand. A thermocoupl e sheath was placed into the melted Tin and was isolated with the help of a glass fiber. This retarded the cooling process of the sample of Tin and provided the experimenter with enough time to collect all of the required data (the change of temperature versus time).

Water short essay Essay Example for Free

Water short essay Essay Water is one of the natures precious gifts to mankind. All living things consist mostly of water eg. the human body is of two thirds of water. It is clear, colourless liquid that appears blue when viewed through a thickness of 20 ft. The colour reflects not only from physical causes but also from suspended impurities. The freezing point of water is 0degree centigrade and its boiling point is 100 degree centigrade. Water is the most essential component of life and is vital for sustenance. The importance of water in our diet is apparent as it helps the body to perform specific metabolic tasks and regulates our body temperature, moreover water is unique as its density is similar to that of cell protoplasm. There is no doubt that water is everywhere and it is very important to our Earth and the life inhabiting it. Water contains no calories and is a significant factor in losing weight. It is the key component in determining the quality of our lives and is a universal solvent. We should teach children to turn off faucets tightly after use, adjust sprinklers to water your lawn. Plant in the fall when conditions are cooler and collect water used for rinsing fruits and vegetables to water house plants, wash your pets outdoors in an area of your lawn that needs water and repair leaking pipes, harvest rain water. People use up our planets fresh water faster than it can naturally be replenished so, save water for the Earth, family and community. Cultural views of water are based on predominent religious views, like the Ganges river in Hinduism. Water is known as the elixir of life. So Conserve water to save life.

The Life of Mass Murderer, Henry Lee Lucas Essay -- Biography Biograph

The Life of Mass Murderer, Henry Lee Lucas "Henry Lee Lucas enjoyed holding the title of 'the most infamous man on death row.' His fleeting fame did not evolve from the three cold-blooded murders he did commit, but from hundreds of murders he did not." (Bonnie Bobit) He confessed to hundreds of murders to prove several points, as well as to delay his death sentence. Lucas lived through a childhood of abuse and neglect. If there is a case that proves a person's childhood is reflected in their later actions this could certainly be one. He was never taught that life had any value and perhaps this led him into a life of crime. (killer index) Henry Lee Lucas was born on August 23, 1936, in Blacksburg Virginia. Lucas's mother was an abusive prostitute who forced both her disabled husband and son Henry to watch her performance of sexual acts on strangers. Henry's father was missing both his legs from a accident; he sold pencils on a street corner to earn an income for their family and to feed his alcoholism. Henry came from a large family of eight brothers and sisters, they all lived in a two-room dirt floor cottage. (Killer index) As well as being forced to watch his mother's sexual acts, Henry's mother severely beat him. Henry and one of his brothers were carrying on one day and Henry's eye was stabbed out. It was days before someone took Henry to the doctor. He was in excruciating pain for days. (Bonnie Bobit) One time Henry's mother beat him so hard with a wooden stick that he "lay in a semi-conscious state for three days' before he was taken to the doctor. (Serial killer index) Viola, Henry's mother also used to dress him up in a dress, curl his hair and send him off shoeless to school. She beat him once because he came h... ...//www.amnesty.org/ailib/aipub/1998/AMR/25101098.htm Amnesty International. United States of America: Death Penalty in Texas: Lethal Injustice. March 1998. http://crimemagazine.com/lucas.htm Bobit, Bonnie. Crime magazine an encyclopedia of crime. http://www.detnews.com/1998/nation/9806/26/06270008.htm Holmes, Michael (Associated Press) Texas governor grants death chamber reprieve to confessed serial killer. The Detroit News Friday June 6 1998. http://www.houseofhorrors.com/lucas.htm House of Horrors. Henry Lee Lucas portrait of a serial killer. http://detnews.com/menu/stories/18493.htm Pressley, Sue Anne, Washington Post. Executioner awaits for Henry Lee Lucas, criminal superstar of '80s. Detroit news October 2, 1995 http://www.mayhem.net/Crime/serial1.html Serial Killer Hit list http://www.crass.com/killer/lucas.html Serial Killer index.

McDonough’s Purpose in Writing the Book

Of all of the events in American history, few would argue that the Civil War is the most debated, written about and discussed event. While it is beyond the scope of this research to pinpoint the all of the reasons why the Civil War still captures the imagination of historic scholars to this very day, but it is possible to take one of the many books written on the topic and provide a thorough review. In this research, Shiloh-In Hell before Night by James L. McDonough will be the work reviewed from several different vantage points. McDonough’s Purpose in Writing the Book.It would be easy to simply say that McDonough’s purpose in writing his book was to depict the people and events of one of the bloodiest battles of the Civil War, which took place in the Tennessee Valley on April 6, 1862, when hundreds of thousands of Union and Confederate troops clashed, fought and died (McDonough, 1977). Upon a closer reading of the work, however, a larger purpose becomes apparent. Withi n the pages of the book, McDonough uses the writing style of the great fiction writers of all time to create an historic account that reads like a novel.Moreover, through the use of quotes from many of those who were involved in the battle, these people come back to life in a way and tell their own story, lending credibility and accuracy to the work. The Main Argument of the Work James L. McDonough’s main argument in this work is that the Civil War was not just a series of battles, wins and losses, but rather was a struggle for opposing people to try to direct a way of life for everyone to follow. He does this by using actual quotes from the main individuals involved in the battle of Shiloh which show how they felt and what lengths they would go to in order to put forth those beliefs.Was the Goal of the Book Accomplished? Generally speaking, the goal of the book was accomplished in that McDonough was able to make the point that even in defeat, there is honor to a certain exte nt, and also that the cause of the Confederate States of America was as much a commitment to the preservation of a way of life that had existed for generations and hundreds of years as much as it was a fight to break away from a government that was seen as oppressive and dictatorial.McDonough, in his vivid characterizations and flowing style, makes the point that even when a decisive victory is not gained, even the act of fighting for one’s beliefs is in itself a form of victory. By doing this, McDonough shows that the Civil War was a far more complex event in American history than simply two sides fighting to win battles.This most certainly contributes to the ongoing fascination with the Civil War that was mentioned as this research began, and it is authors like McDonough that both satisfy the reader’s thirst for more information about the Civil War and sparks additional interest at the same time, which is quite a feat for any book about any historic period. Strengths /Weaknesses of the Book In fairness, McDonough’s book has its share of relative strengths and weaknesses which became clear in reading the book and are worthwhile to present and discuss in this review.An overall strength of the book which became apparent from the very first paragraph was the realization that this was not the usual, dry historic text. Rather, McDonough took on a narrative style that made the presentation of the necessary elements of any historic account something that the reader would in fact look forward to reading, and as such, the more that was read, the more that was learned. In this sense, it could also be cited as a strength that this book serves to educate, as well as entertain the reader. Weaknesses also exist in the book.Understandably, McDonough wrote the book from a southern point of view, and while there is no way to ethically change the result of the battle- a Confederate retreat which can fairly be seen in retrospect as a defeat- it is fair to sa y that McDonough’s narrative style and attempt to make the key players in the battle come to life tends to glorify even those who ultimately failed to perform up to standards in the battle, and of course, in the end, were not victorious. This is not to say that McDonough distorted any facts, but he did tend in some ways to over dramatize unsuccessful leaders like Beauregard and others.Is McDonough’s Book a Valuable Contribution to the Study of the American Civil War? In conclusion, the remaining point to be discussed is whether or not McDonough’s book is a valuable contribution to the study of the Civil War. The point has already been made that the book is able to both provide information and spark a desire to learn more, all in an entertaining and vivid style. Also, it was discussed that McDonough was able to convey something far beyond history- the mindset and tradition which led to the Civil War and inspired thousands on both sides of the conflict to make the ultimate sacrifice for their beliefs.Based on all of this, it can fairly be said that this book is a valuable study of the Civil War, for anytime that facts and figures from the past can be brought to life and spark the imagination of the reader, the work is most worthwhile, and this work is no exception. Therefore, in closing, let it be said that Shiloh-In Hell before Night, decades after its publication, is still deserving of high continued review. Works Cited McDonough, James Lee. 1977. Shiloh: In Hell before Night. Knoxville: University of Tennessee Press.

Continous Comprehensive Evaluation Essay

It has been a couple of years now that the Continuous and Comprehensive Evaluation (CCE) scheme has been in existence but the nitty-gritty of it continues to raise questions among CBSE schools across the country. On Saturday afternoon around 250 principals and teachers from 140 schools across the state gathered in Nagpur to attend a daylong seminar on CCE. Organized by the Nagpur Sahodaya Schools Complex, the seminar was conducted by senior educationist Priyadarshini Kelkar from Vadodara who tried to address concerns about CCE. â€Å"CCE is similar to treating a medical patient,† said Kelkar who is also the principal of New Era School in Vadodara. If my medical reports confirm I have high blood pressure and my doctor reads it but simply sends me home then it is not right. The correct method is to prescribe me some medicine and review my health after a week or fortnight. And this is exactly what CCE intends to do,† she said. Kelkar explained that CCE’s focus is on assessing a student, providing remedial feedback and following up at regular intervals. â€Å"With CCE the aim is to evaluate all areas of development and review the progress at regular intervals,† she said. Building up to her detailed talk on assessments in CCE, Kelkar talked about the need for CCE. Education in the 21st century requires a different approach. Teachers need to be dynamic learners themselves if they have to be the catalyst for change. We as teachers have to accept that students have different learning styles and different intelligence types,† said Kelkar. She hinted that part of the resistance to CCE from teachers is due the ‘resistance to change’ factor. â€Å"Nobody likes change and hence we question it. I cook a certain dish perfectly and when my husband wants me to experiment with the ingredients I refuse. My logic is that what I am cooking is perfect so what is the need to change. In a sense I am a conformist too just like numerous others, but we have to understand that change is necessary. If we don’t change then we will become obsolete and this will be a disaster for our country in the 21st century,† said Kelkar. Assessment plays a major role in CCE as it helps understand how the student is faring. â€Å"CBSE encourages the use of multidisciplinary projects so that students are able to express themselves better. We have to make students learn to think creatively and be inventive, hence questions must be open-ended,† she said. But many things are easier said than done, and the bane of CCE has been the increased paperwork it has brought upon teachers. Kelkar agreed by saying teachers are ‘submerged in paperwork’. She said, â€Å"It is common to see project works piling up in the staffroom and it is quite a task for teachers as they teach more than one section. Evaluating each one and entering data in more than one place increases the workload. One solution is for managements to provide their teachers with laptops or palmtops so that they can enter the data immediately. â€Å"