Saturday, December 28, 2019

Printable Chemistry Quiz - Lab Safety Quiz

You can take this printable chemistry quiz online or print it out to try later. This multiple choice test covers basic lab safety concepts. You may wish to review lab safety before you get started. You should pipette by mouth:(a) Always. Its a fast and efficient method of measuring liquids.(b) Only when you cant find a pipette bulb or think it might be dirty.(c) Only when you are sure your instructor, lab assistant, or co-worker isnt looking.(d) Never. And if you thought about answering yes to any other the other choices, should be expelled.When you are finished using a Bunsen burner you should:(a) Leave it on for the next person to use. Its the only considerate choice.(b) Cover the burner with an inverted beaker to suffocate the flame. It works well for candles, too.(c) Pull off the hose connecting the burner to the gas. The burner wont have gas, so it wont be on fire.(d) Turn off the gas. Duh!If you feel dizzy or sick while working near the fume hood you should:(a) Head out to grab a cola or a snack. Maybe its low blood sugar. Dont tell anyone - why bother them.(b) Meh, no big deal. Do nothing. Fume hoods always protect you from harmful chemicals. The sooner you get finished the sooner you can leave.(c) Report your symptoms to whoever is responsible for that fume hood. It might be nothing, but on the other hand, maybe the hood wasnt functioning properly and you were exposed to something. Look up the MSDS for whatever was in the hood, too. Leave the lab, after contacting the proper person.If you catch on fire you should:(a) Panic. Yelling FIRE at the top of your lungs to let others know about the danger is good. Be sure to run as quickly as possible to blow out the flame.(b) Water fixes everything. Head for the nearest safety shower and drown the flame.(c) Pull the fire alarm and look for help. Hope the fire doesnt burn you too badly before you can take some form of action.(d) Smother the flame. Those blankets in the lab are there for a reason. Some fire doesnt really care about water, but all flames need oxygen. Get help, too. You werent working alone in the lab though, right?Your glassware is clean enough to eat off of, which is why you poured yourself a refreshing glass of water into a beaker to quench your thirst. Too bad you didnt label it. You should:(a) Go on with your business. Are you saying there is some safety issue here? I scoff at you!(b) Just be really careful about keeping it separate from other beakers filled with clear liquid.Hydrochloric acid.. water.. there is a difference, but I can smell the acid before I drink it.(c) Label it before you forget which beaker it is. Youre sure there are no residual chemicals in the glassware and positive nothing could accidentally splash into your drink.(d) Look back to an earlier answer about how you should be slapped for stupidity. Food and drinks dont belong in the lab. Period.You really want to impress a certain person in your lab. You should:(a) Be sure to wear contacts, not glasses, and just be really careful about chemical fumes. Got long hair? Dont tie it back, flaunt it. Nice legs? Wear something short, with sandals to show off those toes. Also, impress him or her by doi ng something daring in the lab. Choose something involving fire.(b) Ditch the lab coat and goggles. Dress to impress. Theres no way the person can tell your fashion sense when you cover it with safety gear.(c) Hey.. lab coats are cool! Only ditch the goggles.(d) Impress him or her with how incredibly competent you are in the lab. That includes your ability to follow safe lab procedures.You are really curious about chemistry and chemical reactions. You wonder what would happen if you mixed chemicals in a different way or introduced something new into a procedure. You should:(a) Stomp that curiosity down. Chemists do what they are told. Nothing more, nothing less.(b) Run with it. Mix and match chemicals to your hearts desire. Whats the worst that could happen? Explosion? You laugh. Toxic fumes? As if.(c) Get the Nobel prize for your brilliance. But first.. lets try things and see how they work. But as for the scientific method and making predictions? Thats for sissies.(d) Be applauded for your curiosity, imagination, and quest for innovation, but be very, very careful about altering procedures. If its a lab experiment for a grade, dont deviate from the procedure. Otherwise, make a prediction about what could happen based on your observations. Research possible reactions and consequences before playing mix-and-match in the lab.There is a container on the lab bench containing some unknown chemical. You should:(a) Dump it, wash the glassware. Some people are slobs.(b) Move it out of the way in case it is dangerous. Otherwise, not your problem.(c) Leave it. The rightful owner will claim it eventually.(d) Find your lab supervisor and ask what to do. If you are the lab supervisor, remove the container (noting its location), hunt down the offender, and try to get some idea what could be in the beaker so you know how to dispose of it.If you break a mercury thermometer, or otherwise spill mercury, you should:(a) Leave it for others to find. Accidents happen. Its pretty o bvious it was mercury. No big deal.(b) Grab some paper towels, clean it up, and throw it away. Problem solved.(c) Clean it up, being sure to throw away the mercury-contaminated items where heavy metals go. Dont bother anyone about the spill though. What they dont know cant hurt them.(d) Leave it alone, but call your instructor or lab assistant over immediately to deal with the spill. Youre alone? Call whoever is responsible for lab accidents. Only clean up the spill if you have been trained to deal with mercury. Dont pretend like it didnt happen.You see someone in your lab engaged in an unsafe lab practice. You should:(a) Point and laugh. They will clue in and change their behavior from the humiliation.(b) Point and laugh and tell the person what an idiot he or she is being, and why the lab practice is unsafe.(c) Ignore them. Not your problem.(d) Nicely, politely point out the possible danger and how to avoid it. Youre non-confrontational? Find someone with more courage who can tact fully correct the problem. (Okay, maybe if its pipetting by mouth or thwacking the cap on an ether bottle with a screwdriver the second answer is worth considering.) Answers:1 d, 2 d, 3 c, 4 d, 5 d, 6 d, 7 d, 8 d, 9 d, 10 d This quiz is available in an online format that is scored automatically. Lab Safety Quiz Key Takeaways Know the location and proper operation of safety equipment.Follow proper procedures in the lab.If you see something, say something. Dont ignore safety issues.If an accident occurs, immediately report it.

Friday, December 20, 2019

political science state centered and power centered

Man in nature is a social being. He cannot exist alone and can certainly not be self-sufficient. He is born and dwells in society where he associates with fellow humans. Man’s interaction with others in society eventually manifests his selfishness and quarrelsome nature. The human being is complex. Therefore as men live and interact in society, there arises the need for rules and accepted form of behavior. The regulation and execution of these rules are what bring about order in society. The regulators and enforcers of these rules and laws are what constitute what is called government. According to Heywood (2007) the government is created by individuals and for individuals (population), it exists to serve their needs and interests. This†¦show more content†¦In other words it is a study of state affairs. A state is a compulsory political organization with a centralized government that maintains a monopoly of the legitimate use of force within a certain geographical ter ritory. Other traditional thinkers such as Paul Janet and Jelineck also defined political science is a study of state affairs only. This means that man, the government and their relationship are studied. This is political science state centered. The authority and influence over society is held in the state alone as an independent entity. The focus of study is on the state and the state or state affairs only. State-centered stresses the role of the government on society. Its focus is that the state itself can maintain political life to some extent independently of the way power is allocated between society classes. It should also be made clear that the government is their or exists in order to organize society thereby satisfying the needs of man or society or the population.. This is because the societies or man’s wants and needs are unlimited. Therefore a government has to exist to satisfy them. Some of the duties that government performs in order to satisfy the needs of soci ety are: To provide law and order. It is the duty of the state to make that the society is ruled under law and that order is maintained. Rules and laws are what promote order even in society where the desires and aspirations of the people are not theShow MoreRelatedState centered and power centered political science; A breif explainantion.1655 Words   |  7 Pageswriting this essay is to compare and contrast politics which are state centered and politics with are power centered. What is politics? According to Johari (2008) on this important question the view of the Liberals and those of the Marxists are poles apart. While the former take the study of politics as a study of state government and power, that is an instrument of coercion, the latter take politics as a study of power (political, economical and ideological) alone. 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Thursday, December 12, 2019

Poetic Style Personism Essay Example For Students

Poetic Style: Personism Essay A Manifesto, OHara introduces a new style of poetic writing called pepperonis. The style defers from that of a traditional structured format. Auroras Personal Poem serves as an example of pepperonis and Is able to put the techniques described In the manifesto Into context, which Is very helpful In giving us a better overall understanding about the movement. OHara created personnel after a heartbreak when he realized that he could speak with his former lover using the telephone instead of writing poems. He decided to incorporate this direct freedom of expression into his writing. Like poems that intend to have the reader walk away with a certain message, OHara goes for something very different in Personal Poem. Its format is of one 8-line stanza and one 26-line stanza. There is not a single period in the entire poem, making it difficult to read and to follow Auroras train of thought. Taking it a step farther than Just the difficulty in understanding the poem due to its lack of punctua tion, the poem Jumps from one Idea to the next: from dreams about being a construction worker in New York to eating fish and drinking beer. After reading Personal Poem, I began understanding more fully Pepperonis at large. Auroras lack of care for the presentation of clear Ideas to his readers Is apparent from the very beginning of Pepperonis: A Manholes. He states, If someones chasing you down the street with a knife and you just run, you dont turn around and shout, Give it pulp I was a track star for Minimal Prep Here, OHara compares poetry to this extreme situation where impulsiveness and instinct takes priority over structured, planned-out thinking. He also provides a metaphor for the ineffectiveness of poetic obviousness, comparing it to wearing overly tight Jeans to portray a sexual image. The obviousness of intentions negates the original intention rather than implements it. In other words, it causes the poetry to lose its metaphysical aspect. Pepperonis as a breakthrough in poetic Ideological form must be based on the idea that poetry Is an art form rather than a philosophy. It allows for space of Interpretation Instead of forced feeding of Ideas to the reader. He describes the negative effects of this forced feeding In what I believe Is a brilliant line In the manifesto: It does not have to do with personality or intimacy, far from it! But to give you a vague idea, one of its minimal aspects is to address itself to one person (other than the poet himself), thus evoking overtones of love without destroying loves life-giving vulgarity, and sustaining the poets feelings toward the poem while preventing love from distracting him into feeling about the person. By freely Jotting down thoughts on paper, sanctity of poetry is untainted. Here, he uses the example of love as the example for the overarching theme of a poem that should not be forced upon readers. By addressing love, the writer takes away the overtones of love through expression In the poem. This non-blatant expression Is what distinguishes art from philosophy. Love Is not an Image painted In a picture, but is the paint itself used to create the image. OHara, however, is not concerned by this complexity, instead believing that it contributes to artistic value. Pepperonis as a form should be about direct relational connection rather than words on a page. OHara believes that this form will continue to evolve and become more and more beneficial to the realm of poetic expression.

Wednesday, December 4, 2019

The Butcher Boy free essay sample

Over the years, numerous directors have portrayed childhood in film, and some of them have done so in an extremely affecting and poignant way. Films like Francois Truffuaut’s 400 blows or Ingmar Bergman’s Fanny and Alexander have left their mark on film history, partly because the directors dared to present childhood as a period of great insecurity and unhappiness, and not as the most idyllic period of one’s life. â€Å"The Butcher boy†, a film directed by the irish director Neil Jordan in 1997, is a rather overlooked film, that rarely appears in film critics’ lists of great films. Yet, this film is a masterful portrayal of a disturbed childhood, dominated by great unhappiness and loss. â€Å"The Butcher Boy† is based on irish author Patrick Mc Cabe’s highly-praised and controversial novel of the same name. It tells the story of young Francie Brady, a teenage Irish boy, living in a small town in western Ireland in the 60’s. We will write a custom essay sample on The Butcher Boy or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Francie is a free-spirited and wildly imaginative boy with a passion for comic books. Unfortunately, his carefree adolescence is stigmatized by the tragic circumstances of his family life. His father is struggling with alcoholism and his mother is mentally disturbed, and eventually commits suicide. The boy has never been shown any real tenderness because both of his parents were overwhelmed by their own misery. His mother’s suicide is enough to drive the already fragile Francis to his limits. From that point on, the boy slowly descends into madness, as he is filled with feelings of rage and aggressiveness. This aggressiveness is soon directed toward Ms Nugent, a neighbour of the Bradies, who has always been extremely critical of Francie because of his lack of â€Å"proper† manners and his undignified family situation, often referring to the boy and his family as â€Å"pigs†. To Francie she is the embodiment of evil. When his misery reaches unbearable heights, Francie, who at some point is employed in a butcher shop, breaks into Mrs. Nugent’s house and slaughters her. He ends up in a mental institution and is released years later, when he has reached middle age. The feeling of uneasinees which pervades the film is caused not only by its disturbing subject matter, but also by Jordan’s directing technique. The director has always had a knack for blurring the line between reality and imagination. In â€Å"The butcher boy† everything is seen through Francie’s distorted point of view. For example, Mrs Nugent, who is in fact just an overly conservative, gossipy middle-aged woman is presented as an ogre in the film. The director has filmed the actress Fiona Shaw in a very unflattering way, emphasizing her grotesque grimaces and her annoying voice. This way the viewer views her as the appalling woman that Francie sees. Another example of this is the portrayal of Francie’s hallucinations. There are a number of scenes in the film, when Francie, in his imagination, is visited by the Virgin Mary, who comes to advise him or encourage him. These visits are the only source of consolation in his sad life, and appropriately, these specific scenes of the film are filled with light. Despite the main character’s portrayal as a psychotic teenager, Francie earns the viewer’s sympathy, and this is largely due to the performance of the protagonist Eammon Owens. The young actor manages to convey the desperation that underlies Francie’s aggression and his violent outbursts. He portrays Francie as a boy who is unable to cope with life in a rational way, because he has been driven mad by his misfortunes. Another element, which makes the main character likable is his dark sense of humour. Since the story is told in first-person narrative by the older Francie himself, the audience is treated to Francie’s sarcastic observations about the events that unfold. Somehow, this bitter humour makes the film even more poignant. It is obvious, that the director was not interested in making a horror film about a dangerous sociopath, but a potent statement about the effects that lack of love and guidance can have on a young soul. The butcher boy can by no me ans described as a â€Å"pleasant film†, despite its light-hearted moments. It is often violent, disturbing and depressing. But anyone who can look past the element of violence and cruelty, will be rewarded with a deeply affecting story about a boy who, as a character in the film points out â€Å"never really had a chance.†