Test Tube Thunderstorm Chemistry Demonstration

You can react chemicals to produce what looks like a thunderstorm in a test tube. This is a spectacular chemistry demonstration that is suitable for chemistry class or lab. Safety You must be careful with this demonstration and keep any students away from the setup. It involves corrosive acid, flammable alcohol or acetone, and a slight chance of glassware shattering as a result of the vigorous chemical reaction. The test tube thunderstorm demonstration should only be performed by qualified individuals, wearing full protective gear and using proper safety precautions. Materials 95% alcohol (any type) or acetonesulfuric acidpotassium permanganateglass pipettetest tube Perform the Demonstration Wear gloves, a face shield, and protective clothing. Pour some alcohol or acetone into a test tube.Use a glass pipette to introduce a layer of sulfuric acid below the alcohol or acetone. Avoid any mixing of the two liquids, since the demonstration wont work if too much mixing occurs. Do not handle the test tube beyond this point.Drop a few crystals of potassium permanganate into the test tube.Turn out the lights. The sulfuric acid and the permanganate react to form manganese heptoxide, which explodes when it comes into contact with the alcohol or acetone. The reaction looks a bit like a thunderstorm in a test tube.When the demonstration is concluded, inactivate the reaction by using metal tongs to place the test tube into a large container of water. Be very careful! There is a chance the test tube could shatter.

Essay Racism in the South - 900 Words

Many different groups existed during the Reconstruction era, but the groups disagreed on what was needed to move America forward. Southern white conservatives did not want blacks to own property, have political power, or even have the opportunity to vote in elections. The white Southerners so strongly believed that whites were superior that they worked hard to make sure legal restrictions were in place to prevent the blacks from gaining any type of equality or power. The freed slaves merely wanted the opportunity to continue the â€Å"family-based communal work methods† as opposed to having to accept the individual piecework structure. In addition, the former slaves wanted to be able to continue to live on the land their ancestors had†¦show more content†¦Once ten percent of the population was pardoned, the state could be readmitted to the Union. Congress, however, was in favor of a stricter policy, whereby the states could be readmitted to the Union only when people loyal to their beliefs were put in positions of power instead of privileged Southerners. In addition, Congress believed that blacks were entitled to basic citizenship privileges. After Lincoln’s assassination, Andrew Johnson became president. Both Republicans and Congress ended up siding against Johnson because he favored the emancipation as a way of removing the elite planters from their positions of power. Johnson was not against the ownership of slaves and â€Å"wished that ‘†¦every head of family in the United States had one slave to take the drudgery and menial service off his family’† (410). In addition, his hope was that the restoration would take place quickly and that the only changes would be the abolishment of slavery and the denial of states’ rights to secede. The Republicans became incensed when states passed the Black Codes, legislation that created segregation, discrimination, and violence against blacks. In addition, former slaves were subjected to laws that prevented them from being able to choose their employers. The president was partially responsibleShow MoreRelatedRacism in the South1144 Words   |  5 Pagesthe South, many people owned slaves. In the south, plantations were the most basic unit and the most vital element of the Southern antebellum economy.2 But at the heart of these plantations were the slaves. So vicariously, the slaves of the South were the most vital part of the Southern economy. Slaves, although taken from Africa, were still able to hold onto their religious traditions and beliefs. They would incorporate their traditions into the Christian belief structure that the south hadRead MoreRacism And The New South Essay1343 Words   |  6 Pageslikely to experience racism because of this homogenization pyramid. Which tempts to be divided into different categories where people identify with in their phenotype features. It is found in the article of â€Å"Becoming ‘Hispanic’ in the ‘New South’: Central America immigrants’ racialization experiences in Atlanta, Ga USA† by Robert A. Yarbrough and â€Å"Allà ¡ en Guatemala† by Lucila D. Ek, Ph.D. they can relate to racism that will eventually end up nowhere just something very negative. Racism is a serious issueRead MoreThe Racism Of South Park1441 Words   |  6 Pagesmainstream media adheres to traditional social ideas. South Park uses satire to deconstruct heteronorma tive views on homosexuality. Therefore, homosexuality is accepted more widespread through use of mainstream media. South Park is about four boys and their wild adventures, as they go through elementary school. The main characters are Stan Marsh, Kenny McCormick, Eric Cartman and Kyle Broflovski. 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Although, being within the same country, it is clear that the ‘land of cowboys’ couldn’t be more different than the beaches of California and the skyscrapers of New York. However, it is easily one of the places in which property and land can be bought cheapest. This can be traced back hundreds of years to when the slave market was firstRead MoreRacism And Poverty : South Africa1640 Words   |  7 PagesSince it’s foundation, South Africa has faced significant issues with racism and poverty. From the times of colonialism, to the era of apartheid, South Africans have been segregated in discriminatory contexts that have left a large proportion of the population living in desperate conditions. This segregation by race and socioeconomic status still exists today and is extremely prevalent in modern South African society. 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This TV show was created with a purpose to make racism and sexism funny and acceptable. South Park is a television show that was created by Trey Parker and Matt Stone. It circumvents the lives of 4 boys namely Eric Cartmen, Kenny McCormick, Stan Marsh andRead MoreRacism : Nelson Mandela, Former President Of South Africa1523 Words   |  7 PagesPresident of South Africa, once said, â€Å"No one is born hating another person because of the color of his skin, his background, or his religion. People learn to hate, and if they can learn to hate, they can be taught to love, for love comes more naturally to the human heart than its opposite† (Nelson Mandela Museum). Racism has been at the forefront of debates since the Nineteenth century and has spread throughout the United States, creating outrage, violence, and political reform. Racism has been theRead MoreRacism Is Funny, By Co Creator Of South Park, And The Simpsons Essay2038 Words   |  9 PagesReligion is Funny.† This line once said by co-creator of South Park Matt Stone has caused so much controversy ov er the years about how we treat other cultures and religions that it has emerged to become a number one topic. Even though religion has been around for many year’s people still take their beliefs very seriously. Media has even start making fun of religions by making jokes about the systems of beliefs of a religion and the people that follow those religions based on the negative stereotypes

Free Othello Essay The Disintegration of Othello - 590 Words

The Disintegration of Othello nbsp; nbsp;nbsp; Shakespeares Othello is a play with unique characters. One such character is the one for which Shakespeare names his play. In the play, Othello disintegrates from a confident leader to a homicidal murderer. Linguistic changes throughout the play attest to this theory. nbsp; In the opening scenes, Shakespeare portrays Othello as a noble character. When Brabantio seeks vengeance (for stealing his daughter) on Othello, Othello expresses his actions will tongue out his [Brabantios] complaints (1.2.21). Thus he shows his calmness against the verbal slander of Brabantio. Throughout this scene, Othello remains calm and confident. Moreover, he humbly tells the story of his†¦show more content†¦Othello continues in this matter until the Temptation scene in 3.3. nbsp; He begins this scene in the same manner but Iagos words transform him into a monster. At first, he simply doubts his wifes fidelity. He asks Iago to observe Desdemonas actions (3.3.274). Then Othello goes to his wife. Although he seems ill, his speech does not express his change. But the next time Othello meets Iago, Othello has a different character. He begins using the animal imagery Iago used throughout the play (3.3.407). In addition, he calls her a lewd minx (3.3.533). As the play progresses, he begins using this animal imagery more often. nbsp; In addition, Shakespeare adds exclamation marks after many of Othellos words. Before this point, few exclamation marks marked the text. Thus the reader might assume the excitement in Othellos voice. An actor would surely make note of these exclamation marks. The calm Othello has begun his descent into a raging Othello. nbsp; Furthermore, he calls on black vengeance, from the hollow hell (3.3.500)! He continues exclaiming, O, blood, blood, blood (3.3.505)! Othello is in a fury. Also, he begins using imagery of the devil in places such as 3.3.536 and 3.4.45. nbsp; In 3.4 he begins talking in riddles. He accuses Desdemona of having a liberal hand (3.4.50). Here he is suggesting she gives her hand away too liberally. Later in this scene, he lies to her, making a fantastical story about the origins of theShow MoreRelatedEssay about Redemption and Damnation in Measure for Measure and Othello2596 Words   |  11 PagesRedemption and Damnation in Measure for Measure and Othello      Ã‚  Ã‚   Measure for Measure and Othello are closely related. There is a thesis-antithesis bond between these two plays. Much more than just sharing a trait or a source, the two constitute a paired study of the processes of redemption and damnation.    Measure for Measure counterbalances Othello. Looking at the text of each play, one finds parallel and contrasting circumstances and characteristics that would incline one to interpret

The Science of Shopping free essay sample

9/26/2011 The Science of Shopping Everyday thousands of retail stores throughout the United States open up their stores in the morning for the sole purpose of attracting customers and selling them merchandise. For this assignment I decided to do a store analysis of the retail giant Wal-Mart. To begin with I will evaluate the store layout and design. Next I will explain the visual merchandising techniques used that Wal-Mart uses. Finally I will discuss the problems and recommendations that I have for Wal-Mart. Wal-Mart has continually been a leader in the retail industry, and it all starts with the layout of the store. From the second that you pull into the Wal-Mart parking lot you are already faced with an important decision, which part of the store you want to enter. The entrance on the left positions you by the groceries, while the right entrance places you by the home goods and school supplies. We will write a custom essay sample on The Science of Shopping or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Wal-Mart utilizes a few different types of layouts, the main layout is a racetrack layout, which provides major aisles that loop around the store and guides customer traffic around different departments within the store. The grocery section of the Wal-Mart, which is on the left and takes up about a third of the store, has a grid layout. The Middle of the store is where Wal-Mart positioned its fashion and jewelry section. While this section fits within the overall race track layout of the store, the fashion/jewelry section has its own free form store layout. The electronics section is strategically located in the back middle of the store, since it is Wal-Marts most profitable section and it makes sure that their consumers have to navigate through the whole store and potentially browse other departments on their way to the electronics. The toy section of the store is sandwiched between the kitchen and home goods and the lawn garden, in hopes that children shopping with their parents will be able to wonder off to the toy section while they shop for home goods. At the front of the store is where they locate their checkout counters and other types of impulse buy items, such as â€Å"As seen on TV† items. While going to Wal-Mart might sometimes seem overwhelming, Wal-Mart does a good job of using visualizing techniques to attract customers to certain areas. Wal-Mart does a particularly good job of highlighting their merchandise. Wal-Mart uses big florescent lights to eliminate the store, as well as using skylights in its stores to make shiny objects even shinier. Along with using the lighting to set the mood, Wal-Mart also uses warm and cool colors to promote a very positive and peaceful mood. Another thing I noticed while I was observing Wal-Mart was that they do not play any music throughout the store. To promote their environment and help keep customer attention, Wal-Mart employees carry walkie-talkies to communicate with each other, because they found out that customers thought the use of intercoms was a distraction. Another thing I noticed about Wal-Mart was that there is no distinct scent in their stores. The sole purpose of a retail store is to try to get the customer to spend as much money as possible, and Wal-Mart is no different. Wal-Mart does an excellent job of using different types of merchandising presentation techniques in their store. At Wal-Mart they use many different types of fixtures to display their merchandise. In Wal-Marts grocery department, they primarily use gondolas to sell their merchandise, where as in the fashion and apparel section they used rounders, four-way racks, and strait racks. Another technique Wal-Mart utilizes is their wall space through the use of vertical merchandising. Since Wal-Mart’s slogan is â€Å"Save Money. Live Better,† they also use tonnage merchandising to enhance and reinforce their pricing image. Wal-Mart not only takes advantage of their merchandising techniques, but they also utilize their feature areas. The feature areas at Wal-Mart are the grocery section, home goods, electronics, fashion/jewelry, lawn garden, auto, and toys. In all of these feature areas, Wal-Mart uses freestanding displays to attract their customers and draw them into that section. Another thing Wal-Mart uses is many of their departments are cash wraps. Most of these cash wraps tended to be things like batteries, gum, candy, and soda. With Wal-Mart being such a large store, many departments also have their own checkout counters that allow customers who are only looking for certain items to be able to get in and out. Wal-Mart also uses end caps on almost every aisle in the store. These end caps are usually impulse buy items that are offering special promotional prices. Another thing that Wal-Mart does is that it shelves their items based on frequency. The most popular items or the items that most consumers buy will be located in the beginning of the aisle and at eye level, while other infrequent items are placed lower on the shelves and more towards the end of the aisle. To accurately keep track of what items need to be restocked or what items are selling the best, Wal-Mart uses a planogram. The planogram they use utilizes SKU’s and will allow for employees to figure out exactly where everything goes and when it needs to be restocked. With Wal-Mart being the leader in retail stores, it is obvious that they must be doing something right. While I was unable to figure out the profitability of space, I was able to find out that their grocery section is the least profitable and that their electronics section is the most profitable. While Wal-Mart is very successful in almost everything they do, there are some areas where they could improve. One area they could improve on is their checkout counters. Even though Wal-Mart has what seems like an endless row of checkout lines, not all of them are in service at once. I noticed that almost every checkout aisle had at least three people waiting in line. With the more people waiting in line, the longer it takes to check out. I noticed that the average checkout time at Wal-Mart was about five minutes per person. Another drawback of the checkout counters is the location of the twenty items or less speedy check out. These were located by only one of the exit doors, and if you parked by the other exit you would either have to wait in one of the other lines or walk all the way across the store to get to your exit after you checked out. Overall, I feel that Wal-Mart does an excellent job of creating an atmosphere that would want to keep their customers coming back. Everyday thousands of customers walk through Wal-Mart’s doors for the sole purpose of buying merchandise, but how do they keep them coming back? For this assignment I decided to do a store analysis of the retail giant Wal-Mart to get a better understand of what they do best. To begin with I evaluated the store layout and design. Then I explained the visual merchandising techniques used that Wal-Mart uses. Finally I discussed the problems and recommendations that I have for Wal-Mart. After performing the store analysis, it became apparent that Wal-Mart has spent a lot of time and effort on keeping customers satisfied and providing an excellent shopping atmosphere.