Saturday, May 23, 2020

Public Schools Should Be Able to Regulate Bullying Essay...

Pushing, shoving, name calling, teasing. When one reads these words, the first thing that we might associate it with is bullying. Whether or not we have experienced it ourselves, we have at least heard about it. However, as technology advances, so does the method of bullying. Today in our world that is run by technology, the modern method of bullying is called cyber bullying. The most recent definition of this is, â€Å"†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦This type of bullying allows the perpetrator to hide behind a computer screen or a phone screen and harass their victims without the need to meet face to face. This causes a new problem to arise in our public schools. Traditional bullying taking place at school was easy to spot and see; therefore, immediate punishment†¦show more content†¦Out of the 1,454 students, seventy-three percent of them were bullied online at least once over a period of twelve months. Of those students who were bullied, fifty-one perce nt of them said that the person who bullied them was a peer of theirs (Wolpert). Professor of psychology and the author of the study, Jaana Juvonen, said that because students do not talk about what is going on with their parents or teachers because they are scared they might get in trouble, or because they think they have to learn how to deal with it by themselves â€Å"they suffer in silence† (Wolpert). Therefore, it â€Å"interferes with the ability to learn and makes many students want to withdraw† (Wolpert). This shows us what effects bullying done outside of the school has on students, during school hours and what that can lead to (dropping out of school). If public high schools monitored off campus cyber bullying it would make students, feel safer because they would know that someone is watching out for them and they do not have to deal with the problem by themselves. This would lead to students feeling more comfortable at school instead of fearing school, and p roviding a safer environment for students to learn in, and therefore keep them in school. In addition, by monitoring off campus cyber bullying public high schools can possibly prevent bullied students from hurting themselves. HowShow MoreRelatedBullying Persuasive Essay718 Words   |  3 Pagescommunities filled with individuals who are being affected by bullying from a range of young children to adults. According to the internet, bullying is the use of superior strength or influence to intimidate (someone), typically to force him or her to do what one wants. Therefore, bullying can affect everyone for those who are affected by the bullying, those who cause the bullying, and those who witness the bullying. In other words, bullying can have a crucial influence on mental health and in extremeRead MoreDaijohna Lloyd-Shorter. Dr. Herrmann. 13 March 2017.1642 Words   |  7 Pagesbully sending offensive and malicious messages to an individual or a group and is often repeated multiple times. Flaming is like harassment, but it refers to an online fight exchanged via emails, in stant messaging or chat rooms. It is a type of public bullying that often directs harsh languages, or images to a specific person. Exclusion is the act of intentionally singling out and leaving a person out from an online group such as chats and sites. The group then subsequently leave malicious commentsRead MoreEssay on Legal and Ethical Implications for Classroom Management1532 Words   |  7 Pagessummarizing four journal articles and responding to them. The specific issues will be free speech and what it means in a school setting, cell phones in classrooms, bullying (specifically of students with disabilities), and gender specific dress codes. Freedom of Speech The issue addressed in the first article summary is freedom of speech and how it is interpreted in a public school setting in relation to the distribution of religious materials. This is really not a new topic of debate. Current precedentsRead MoreA Look Inside The WorldCom Scandal Essay945 Words   |  4 Pageswas at the heart of one of the biggest accounting frauds seen in the United States. The demise of this telecommunications monster can be accredited to many factors including their aggressive-defensive organizational culture based on power and the bullying tactics that they employed. However, this fiasco could have been prevented if WorldCom had designed a system of checks and balances that would have helped them avoid fraudulent reporting. The Sarbanes-Oxley Act has been instituted as a result ofRead MoreEthos, Missions Aims And Values1118 Words   |  5 Pagesprinciples by which the school operates with regards to pupils,achievement,outside community links and strategies such as anti bullying and peer support. The ethos consists of values and beliefs that contribute to the character of the school itself and the atmosphere experienced by all those who go there. The overall intention of the school is the mission it may be short easily recalled phrase or a single word. it usually overlaps with the vision or aims of the school. Aims of the school may be short statementsRead MoreProject Citizen Essay1824 Words   |  7 PagesEdgewood middle school in Highland Park. From the White House to small cities everywhere, project citizen Is occurring. The community is never happy. They are always looking for ways to make life easier for people. Project citizen has been occurring at Edgewood middle school since 2000. It teaches the community, specifically the Edgewood community on how it can improve. The goal is always to make life better and educate the comm.unity. Edgewood middle school is a school in highland parkRead More Phone Usage in Schools: A Given Luxury, or a Deterrent from Learning?917 Words   |  4 Pages Phone Usage in Schools: A Given Luxury, or a Deterrent from Learning? As humans progress both psychologically and physically, technology progresses just as fast, or perhaps even faster. Technology has advanced so far as to allow people to talk to a family member, coworker, or even a complete stranger at the touch of a couple of buttons. We can now have a cellular phone and media player in one, four ounce device that fits in the palm of our hands. However, with the progression of media devicesRead MoreShould Cell Phones Become A Distraction? Essay1755 Words   |  8 PagesThere are countless other reasons for the proposal to be implemented. For instance, a revised curriculum in schools could positively impact the students of these schools. It’s vital that schools that allow students to use their cell phones in class immediately put a stop to this practice. However some people such as, Lisa Nielson would argue with this. She believes that cell phones are the way of the future and need to be embraced (Nielson, 2008, p.5.). However this needs to b e the first step becauseRead MoreSmartphones And Its Lack Of Security854 Words   |  4 Pagescyberbullying. â€Å"Cyberbullying is bullying that takes place using electronic technology† (Cyberbullying 1). â€Å"In 2006, national law enforcement leaders estimated that more than 13 million children and adolescents ages 6–17 were victims of cyberbullying† (Feingberg 1). Bullying can have several consequences, but most schools have a zero tolerance policy. Cyberbullying has no exact regulations because it is impossible to regulate the internet and how people choose to use it. Rumors in schools can spread like wildfireRead MoreEthical Issues in Education1046 Words   |  5 Pagessometimes even taking certain things, impertinent from time to time, away from it while passing it on further. However, the industry of education is a serious one, requiring well-defined ethics and values, well-bound in visible legal outlines to regulate its exchange and distribution. Let us take a brief look at some of the most common issues of ethics in education. List of Ethical Issues in Education Following are some of the most common moral, legal and ethical concerns in education that

Tuesday, May 12, 2020

Introduction And Learning Objectives Of Heart Failure

Introduction and Learning Objectives Heart failure is a debilitating condition, affecting around 1-2% of the UK population (Sutherland, 2010). Its prevalence is rising due to an increase in its risk factors, most notably an increased population life expectancy (Patient.co.uk, 2014). In the scenario Mr Williams is an obese 65-year-old man, exhibiting numerous symptoms indicative of congestive heart failure. In this PBL write-up, I aim to explore the issues raised, whilst relating them to the pathophysiology of heart failure. Learning Objectives Whilst discussing the scenario, our group came up with the following objectives: 1. Define any unknown terms 2. What is heart failure? 3. Explain the signs and symptoms presented by Mr Williams 4. Diagnosis of heart failure 5. Treatment of heart failure Unknown Terms We identified â€Å"pulsus alternans† as an unknown term from the scenario. Pulsus Alternans is characterised by alternate strong and weak beats during a regular sinus rhythm (Weber, 2003). The systolic pressure can vary up to 50mmHg between beats (Kumar and Clark, 2009). What is heart failure? Heart failure is a result of any structural or functional cardiac disorder, leading to an impaired ability of the heart to pump a sufficient circulation to metabolising tissues (Sutherland, 2010). It can also be called â€Å"congestive heart failure†, as fluid retention is a common symptom. The main causes of heart failure are ischaemic heart disease, cardiomyopathy and hypertensionShow MoreRelatedA Research Study On Cardiovascular Heart Disease1079 Words   |  5 PagesIntroduction Cardiovascular heart disease, the leading cause of death in Tennessee, is the result of many health problems including high blood pressure, high cholesterol levels, diabetes mellitus and obesity (â€Å"Statistics and Reports†, n.d.). The mismanagement of these chronic health problems will very likely lead to more fatal conditions that can be prevented simply by making necessary lifestyle changes. Cardiovascular disease comes in a variety of forms, but the most common are coronary arteryRead MoreAffective Factors Affecting The Learners Essay1306 Words   |  6 PagesIntroduction 1. Statement of the Problem In the 1970, affective factors were a hot topic in second language acquisition. The â€Å"new† dimension of emotion injected some agitation to know more about their influence on the learners’ achievement in learning a second language. According to considerable researchers’ theoretical studies, the affective state of a learner, which contributes to success or failure in foreign language learning, was given much more importance. Henceforth, when attention is drawnRead MoreElektra Products Inc. case analysis1517 Words   |  7 PagesMartin Griffin - newly hired, dynamic CEO b) Barbara Russell - Vice President for Manufacturing c) Simon - Manufacturing Engineer, whos with the company for more than 20 years and Russells friend. d) Department Heads and other employees Scenario Introduction of the empowerment campaign Griffin, the newly hired and dynamic CEO, opened the monthly companywide meeting with a challenge: As we face increasing competition, we need new ideas, new energy, new spirit to make this company great. And the sourceRead MoreThe Historical Development Of The Field Of Management1458 Words   |  6 PagesIntroduction to the topic This week’s reading provided an introduction and the historical development of the field of management. There are countless books, journals, and other print material around the art and science of management and leadership. An organization needs both management and leadership (Satterlee, 2009). While both disciplines are at times interrelated, there are distinct characteristics that differentiate a manager from a leader. According to Marker (2010), both experience andRead MoreThe Servant Leader Is A Servant1562 Words   |  7 Pagesconcerns and accomplishes a shared vision. â€Å"The servant-leader is a servant first. It begins with the natural feeling that one wants to serve, to serve first. Then conscious choice brings one to aspire to lead† (Center for Servant Leadership, 2015). Introduction to Servant Leadership Of the numerous leadership styles, servant leadership has the strongest historical foundation. The notion of servant leadership can be traced back to the 4th century B.C., through the official papers of Lao-Tzu who lived inRead MoreHow Can We Fulfill Your Potential As A Business Case Study1541 Words   |  7 PagesHow Can We Fulfill Our Potential As a Business? https://noplag.com/ Introduction Methodologies The reasons why we are not fulfilling our Potential. Identifying the issues and Negative approach Conclusions References Introduction Achieving our full potential as a business is not a single task. It about committing our self to the process of self improvement. we strive for a more impressive job title, higher compensation, and responsibility for more sizable revenues, profits, and numbers of employeesRead MoreThe Confucian Ethics Essay1552 Words   |  7 PagesConfucius and his disciples. For two millenniums, the Chinese people emphasized Confucian ethics as the superior source of inspiration for human interaction at all levels between individual, subject and ruler. His philosophy was predominant in the heart of Chinese education, governance and moral ethics. Confucianism established the moral standard and ethical ideals in East Asia by creating the fundamental structure of virtue. As a result, his philosophy on virtue was integrated with politics, religionsRead MoreCritical Assessment On The Policies And Models Of Clinical1116 Words   |  5 Pages PAGE NO INTRODUCTION 3 POLICIES OF CLINICAL GOVERANCE 3 MODELS OF CLINICAL GOVERANCE 4 CONCLUSION 4 REFERENCES 5 INTRODUCTION Clinical governance became important in health care after the Bristol heart scandal 1995 and it is a systemic approach to maintainingRead MoreAcademic Success : Career Goals1378 Words   |  6 PagesContinuing Academic Success Brianne Ard Gen/201 June 29, 2015 Christina Gruca Continuing Academic Success Introduction â€Å"Motivation is defined as the general desire or willingness of someone to do something, but often finding the desire within you can prove difficult. One of the keys to success is to be able to self-motivate and not depend on external forces to deliver your drive† (Stone, 2015, para. 1). Starting something new in life, such as deciding to earn my master’s degree in PsychologyRead MoreFear And Lack Of Fear Essay1612 Words   |  7 Pagesemotional responses. Fear of relationships, fear of failing, fear at not being good enough, fear of overload, fear that someone is watching you, fear of the unknown, fear of change, etc. Out of this fear, an increase in anxiety arises. Introduction Some may go through therapy and some may take medication, and some, may seek out a greater, more personal development through spirituality. This research will set out to find out how spirituality can help anxiety-based disorders and what types

Wednesday, May 6, 2020

Rape as a Weapon of War Free Essays

In recent years, global organizations have fought successfully to protect women’s rights and gender equality, and Gabon is determined to play its role in maintaining this trend. Gabon is against all forms of violence against women, and recognizes rape as a serious violation of women’s rights. Gabon also recognizes that sexual violence is perpetuated by War . We will write a custom essay sample on Rape as a Weapon of War or any similar topic only for you Order Now Currently, armed conflicts across Africa are forcing many women and children to migrate to unsafe territory, and increasing their vulnerability to poverty, abduction and human trafficking . These conditions directly expose them to rape and forced prostitution . Prisoners of war are trafficked into Gabon from Benin, Nigeria, Togo and Mali for prostitution, while others are brought as housemaids and eventually forced to become prostitutes . Human trafficking forces many innocent women and children to live in fear of being exploited. However, Gabon is committed to policies which will bring an end to sexual violence, as well as the conflicts which cause them . In 2001, Gabon enacted strict laws for the prosecution of child traffickers. Gabon has also established a national commission to fight child trafficking, chaired by the nation’s vice president . The Gabonese government also set up a free hotline to fight human trafficking and sexual violence in April 2003, in collaboration with UNICEF. This was the first initiative of its kind in Africa. Gabon recognizes that raising awareness of sexual violence against women is crucial to ending it. The government of Gabon is also confident that a centre to provide protection and assistance to the victims of human trafficking established with the assistance of the European Union in March 2002 will help to rehabilitate the lives of many war-ravaged and sexually abused victims . In January 2002, Gabon joined the the First Specialized Meeting on Child Trafficking and Exploitation in West and Central Africa, in Cote d’Ivoire along with representatives of African countries and UN agencies. Following this meeting, the Yamassoukro Declaration was adopted, upon which Gabon committed to collaborate with other African countries in campaigns against human trafficking . Gabon recognizes the Declaration as a crucial step in uniting womens’ vulnerability to rape across the region. As stated by former Prime Minister Jean- Francois Ntoutoume Emane, the ‘empowerment of women’ has been a major priority for Gabon. Gabon recognizes that women must be empowered to fight sexual violence, for the battle must be fought with them ang not for them. Country Report lt; http://www. protectionproject. org/human_rights_reports/report_documents/gabon. docgt; Ibid Ibid Policy Paper No. 14. 2(E) Human trafficking in Nigeria: Root Causes and Recommendations Country Report lt; http://www. protectionproject. rg/human_rights_reports/report_documents/gabon. docgt; Ibid Troubnikoff, Anna. Trafficking in Women and Children: Current Issues and Developments. Nova Publishers, 2003 Country Report lt; http://www. protectionproject. org/human_rights_reports/report_documents/gabon. docgt; Press Release No: UNIS/GA/1655. General Assembly Special Session Continues, as Heads of State, High-level Ministers Discuss Initiatives for Social Development. lt; http://www. unis. unvienna. org/unis/pressrels/2000/ga1655. html gt; How to cite Rape as a Weapon of War, Papers

Saturday, May 2, 2020

Effect of Music in Shopping Essay Sample free essay sample

To find the consequence of music on behavior. frame of head and picks while selling and consumer behavior as been addressed in instruction. psychological science. communicating. and other Fieldss. As the consequence we see that in some instances music emerges to increase communicating effectiveness. We need to discourse on how. when and why music works in order to understand the portion played by music in communicating. The structural component of music in the proximate context on advertisement and its communicating with the terminal consumer will be discussed in this paper in order to supply possible accounts. How a hearer would respond to peculiar musical transitions can be inferred from the apprehension of formal musical analysis. It is really of import to understand and observe the context in which musical and advertisement â€Å"communication† takes topographic point. Although detailing the nexus between musical component and peculiar processing effects would be hard and beyond the span of this paper. We will write a custom essay sample on Effect of Music in Shopping Essay Sample or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page it would supply the footing of why music works in certain conditions and it doesn’t work in some other state of affairs. This is non planned to be an all across-the-board reappraisal. but one based on some of the survey done so far in the country. Consequently. we shall believe of the musical construction. its relation with critical moderators such as association. processing. sociological factors. ( e. g. . equal force per unit areas and pick in music ) and similarity. Synchronization. wordss. melody and round are the elements of musical construction. Important facet is how these elements consequence on the advertizement and the merchandise. These facets are ; a ) the consumer. sing their different degrees of part and traveling dispensation ; b ) the subjective perceptual experience of the consumers on the exactitude of the music and its relation to the cardinal subject of the advertizement. and. degree Celsius ) the organisation of the musical parts. There has ever been a acute anxiety in analyzing the influence and dispensation of the musical elements ( â€Å"Alpert and Alpert. 1990 ; Bruner. forthcoming† ) . These relationships are moderated by the degree of consumer engagement. processing. and perceived â€Å"fit† of the music to the ad. These connexions are examined by the degree of part. dispensation and evident â€Å"fit† of the music to the advertizement. Understanding of civilization and addiction of the society in determining musical gustatory sensation and merchandises will be good in this anticipation ( â€Å"Farnsworth. 1976 ; and Holbrook and Schindler. 1989† ) . The musical and merchandise fancy and gustatory sensation can be predicted with truth if its mark market demographic is given. While the degree of part and dispensation may differ across persons. the comment of the suitableness of certain musical choices with the overall message of an advertizement can be known. An appraisal of th ese factors may offer some logical thinking of how. when and why they add to the effectivity of music within an advertizement. Using appropriate research to this issue is hindered by the fact that many surveies miss to segregate variables covering with degrees of part and dispensation. Other Centre of attending on peculiar job is segregation. We will seek to construct an integrative model for analyzing music in ad and devising at effort to make fulling the spread. An advertisement consists of different signifiers of messages. These messages can be musical. verbal ; no-verbal and ocular with intermingle and influence each other and the consumer. The consumer gets along an already bing set of conditions that influences on how the music has been taken by the consumer. Music. along with other signifiers of messages of an advertizement that can move as stimulations can act upon and alter the already bing conditions of the consumer. Changeless feedback amid the stimulation and the consumer’s sharp-sightedness and reaction to them can be produced. The sing state of affairs during an ad can differ with the set of bing conditions the viewer’s get to an ad and the one’s which could be evoked. Consumer’s response on an advertizement may differ on some of the undermentioned variables that the research workers have segregated for their survey: a ) the degree of engagement refering the advertisement and the merchandise ( â€Å"Park and Young. 1986† ) and besides whether there exist primary or secondary dispensation ( â€Å"Petty. Cacioppo. and Schumann. 1983† ) . B ) the receptive temper that the music evokes ( â€Å"Fried and Berkowitz. 1979† ) . Receptiveness of the consumer on certain ads may depend on the undermentioned factors: 1 ) acquaintance and fancy of the music ( â€Å"Russell. 1979† ) . 2 ) The music’s ability to convey frontward some lovely ideas and relation. memories and some image ( â€Å"MacInnis and Park. 1990 ; Dowling and Harwood 1986† ) . 3 ) the mann er in which the musical construction is organized ( â€Å"Milliman. 1982 ; Smith and Curnow. 1966 ; Holbrook. 1981 ; Alpert and Alpert. 1990 ; Infante and Berg. 1979† ) . 4 ) The impact on the plan content during which the As was seen ( â€Å"Goldberg and Gorn. 1987† ) . 5 ) allotment of different sentiments like positive or negative â€Å"conditioned† to the trade name by the music ( â€Å"Gorn. 1982† ) . 6 ) the consistence in perceptual experience of the consumer towards the musical content in the advertizement along with the effect of the advertizement ( â€Å"Park and Young 1986† ) . and 7 ) importance function that music dramas in an advertizement ( â€Å"Stout and Leckenby. 1988† ) . This implicates that the consequence of music relies on the different factors. These factors are consumers personal along with environmental and musical factors. The analysis will intricate on these factors. giving illustrations of the survey on assorted countries within viewers’ informations dispensation. Being of music in a context Music ever works with other factors of a message in an advertizement. The stimulation that exist in complex with music in an advertizement are verbal. non-verbal or ocular stimulation. The perceptual experience of these different stimulations by the consumers relies on the many-sided relation of internal ( personal. biological ) and external ( cultural and societal impact ) factors which besides has influence of how and when the consumer develops the musical gustatory sensation ( â€Å"Holbrook and Schindler. 1989 ; Farnsworth. 1976† ) . This paper revolves around a belief that music echo’s the importance and the mentality of a subculture although the external factors are the primary factors ( â€Å"Radocy and Boyle. 1988† ) . Social factors impacts the image and preference about merchandises that are advantageous. and if the music suits those images so they may augment the undermentioned variables: a ) persuasion by agencies of past cognition and verbal relation. ( â€Å"Farnsworth. 1976† ) . B ) recollect. ( â€Å"Stewart. Farmer and Stannard. 1990† ) . degree Celsius ) On a whole impact of the advertizement. ( ‘Evans. 1975† ) . vitamin D ) disposition towards the merchandise ( â€Å"MacInnis and Park. 1990† ) . and vitamin E ) Facilitation of image developed in consumers mind ( â€Å"Bae. 1985 ; Bilotta and Lindauer. 1978† ) . The subsequent statement will lucubrate more on the country of music as a facilitator of mental image. and its map in an ad. information. message. mentality and selling.

Tuesday, March 24, 2020

OSPREYS Essays - Birds Of Prey, Accipitriformes, Osprey, Biota

OSPREYS My report is about the osprey. The osprey is a carnivore , it eats mostly fish. Ospreys have another name, fish hawk. It has that name because ninety per cent of their diet is fish. They have long, curved talons and scaly feet to help grip the fish. They have been seen swimming low over water after eating, perhaps to clean their talons after eating. Ospreys live in four continents, North America, Europe, Asia, and Australia. Ospreys begin nesting in early springtime. Their nests can weigh up to half a ton! When the babies are growing, the dad has to work very hard. He has to spend one fourth of the day getting food for babies. To be able to do that he has to eat twice as much as usual. When the male bird brings a fish, the female pecks at it and rips it apart so the babies can eat it. When the babies are a month old they are already 70 to 80% of their adult weight. The osprey doesn't have very many enemies because not very many birds or animals can beat the osprey in a fight. Eggs are sometimes eaten by hawks, eagles, or owls, but flying predators are not a big threat to the osprey. In North America, the greatest enemy of the osprey is the raccoon. The raccoon is very smart so it can get to the eggs and steal them. To help save the eggs people are now putting steal platforms on the tree or pole to trick the raccoons. If the osprey builds its nest on a tree that is sticking out of the water, it won't be as easy for the raccoon to get to the nest. The osprey is a unique bird. It is related to the hawk and eagle, but scientists put it in it's own special group. The underside of an osprey is white, while the feathers on the back are very dark brown. There heads are white, with black marks across the cheeks and on the crown.

Friday, March 6, 2020

163482-635 Essays - Chemical Elements, Reducing Agents, Free Essays

163482-635 Essays - Chemical Elements, Reducing Agents, Free Essays 163482-635 Nam e Ali Alkhaja Grade 8(s ) MYP Science Title: Periodic table Key concept: Change Related concepts: Form, change function Global contexts: Scientific and technical innovation Topic : Reactivity series of metals Statement of inquiry: Knowledge - challenging discoveries evolve the periodic table's form to enhance its function of showing trends in the physical and chemical properties of elements. Inquiry questions: Factual : What do atoms look like? Conceptual : How do atoms can be structured? Debatable: What are the limits of scientific understanding in building periodic table? Mr.Nithin MYP Assessment Criteria Criterion B : Inquiring and designing Criterion C : Processing and evaluating Writing a lab report about " Reactivity of metals with water HCl" Due date is on Tuesday 1/Dec/2015 late submission will get zero mark Theory: The Reactivity Series of Metals is an arrangement of the metals in order of their reactivity starting with the most reactive metal at the top and ending with the least reactive metal at the bottom. The reactivity of a metal is determined by its ability to do a chemical reaction. Some metals are strongly reactive with water or HCl like potassium; some metals are weakly reactive such as copper. The reactivity series of metals was deduced by performing several experiments in the lab which enabled scientists to arrange metals according to their reactivity with HCl and water. The reaction of metals with HCl can be described in chemical formula: Metal + HCl Metal Chloride (salt) + Hydrogen e.g. Mg + 2HCl MgCl 2 + H 2 The reaction of metals with water can be described in chemical formula: Metal + water Metal Hydroxide + Hydrogen e.g. 2K + 2H 2 O 2KOH + H 2 The Hydrogen gas is flammable . A lighted wooden splint or lighter makes a popping sound in a test tube of hydrogen. Aims : In this investigation you will be able to: Draw reactivity series for different metals Test for hydrogen gas. Explain the reaction between metals and acid. Explain the reaction between metals and water. Compare the reactivity series for both metals with water and metals with acid. Describe the chemical reaction of metals with HCl and water. Materials 10 test tubes Test tube rack Thermometer 25 mL HCl (0.5 M) [ 5 mL for each test tube] 25 mL distilled water [ 5 mL for each test tube] Stopwatch Same size d pieces of metals ( Magnesium "Mg" , Calcium "Ca" , Aluminum "Al", Zinc "Zn" , Copper "Cu") Procedure : Follow the safety rules in the chemistry lab. Gather the following metals: metals ( Magnesium "Mg" , Calcium "Ca" , Aluminum "Al", Zinc "Zn" , Copper "Cu" ) Measure the acid's temperature (T i ) by using thermometer before you drop the metal into it. Remove thermometer then drop the metal into the test tube and start the stopwatch for 2 min. then observe and write your notes about the reaction.(e.g. number of bubbles, change the color, the metal disappears, smell .etc). [Hint: some reactions are instant you have to measure the final temperature directly no need to wait two minutes] U se thermometer to record the highest temperature (T f ) for each reaction . Record your measurements and observations in a suitable table. Repeat the same steps for each metal. Repeat the same steps (1 to 7) by using water. Record your measurements in another table. Work with your partner. Note as many changes as you can and discuss what you think is causing them. Communicate scientific information effectively using scientific language correctly. Present all the information appropriately using symbolic and/or visual representation accurately according to the chosen application . D escribe a problem or question to be tested by a scientific investigation O utline and explain a testable hypothesis using correct scientific reasoning D escribe how to manipulate the variables, and describe how sufficient, relevant data will be collected Design a logical, complete and safe method in which he or she selects appropriate materials and equipment. D iscuss the validity of the method based on the outcome of a scientific investigation D escribe improvements or extensions to the method that would benefit the scientific investigation . Part 1 : Introduction Problem statement: Which metals have a higher

Tuesday, February 18, 2020

Statistics Assignment Example | Topics and Well Written Essays - 500 words - 2

Statistics - Assignment Example of industrial explosion and were under age 40 at the time of accident had heightened concentrations of dioxin in their blood and that each tenfold increase in dioxin level was associated with a doubling of the risk of breast cancer. a) In any experiments, it is required to select sample randomly. If the subjects were not assigned to the diets randomly instead of letting people pick what they wanted to eat, than there may be possibility of adding another factor (in this case subject’s choice) introduced to the experiments. Thus, it will be difficult to say which factor influenced blood pressure more effectively, subject’s choice what they wanted to eat or diet type. Randomization allows us to equalize the effects of unknown or uncontrollable sources of variation. It does not eliminate the effects of these sources, but it spreads them out across the treatment levels so that we can see past them. c) The researchers need the control group because than they will be able to compare the blood pressure of groups based on different diet only. If the DASH diet group’s mean blood pressure was lower at the end of the experiment than at the beginning that would only mean that DASH diet lowered the blood pressure. This will not mean how much effective DASH diet is compared to other diets. Further, in an experiment it is required to control sources of variation other than the factors we are testing by making conditions as similar as possible for all treatment groups. d) We would need additional information standard error of difference (or sample standard deviations and sizes for DASH diet group and control group) in order to decide whether an average reduction in blood pressure of 6.7 points was statistically