Saturday, November 30, 2019

Research Proposal on Self-Harm Essay Example

Research Proposal on Self-Harm Essay Self-harm is a self-destructive behavior that involves the self-infliction of damage, for example by vomiting, cutting or burning own flash. Nine out of ten hospitalized for self-harm have hurt themselves by poisoning, such as drug-poisoning. The person who hurt himself does not do it in order to commit suicide, but through such a behavior tries to experiences a positive self-punishment, transferring the pain from the mind to the body. Those who exhibit this behavior can also say they experience a sense of calm afterwards. The psychiatrist Karl Menninger became in 1935 the first to describe self-injurious acts as a separate phenomenon, distinct from suicide attempts and suicide. Self-harm is a depressive behavior and can have many causes, mostly anxiety, but it does not always have a clear reason. We will write a custom essay sample on Research Proposal on Self-Harm specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Research Proposal on Self-Harm specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Research Proposal on Self-Harm specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Some people may harm themselves without finding an obvious reason for doing this, in the same way as a depression can affect a person for no apparent reason. Depression with anxiety is by far the most common cause of the behavior. Self-harm is often perceived as addictive. The attempts to prevent the person from getting hurt or just saying that the person must stop hurting himself, are often not easy. Such a person can sink too deep into the depression considering individual self-injury as a daily chore, just like eating and sleeping. Self-harm is fully comparable with other addictions. The affected person may consider the purchase of a larger/sharper weapon, various forms of clothing that hides the wounds, bandages and the like to not â€Å"leak† blood through the clothes from fresh wounds. She or he is planning his relations and his activities around whether it will work to have long sleeves or not (for example avoiding compliance with the gym or the beach). There may also be an obsessive problem with the person that must cut a certain number of cuts to make up for a particular event or for other behaviors, or a belief that a certain number of cuts is right â€Å"dose of medicine† for the level anxiety the person feels at that time. Thus, self-harm can be considered a method, a tool to distract oneself from spiritual pain. The physical pain is easier to â€Å"deal with,† to vent the overwhelming negative emotions experienced by the person. Some also argue that it creates a cleaning and thus the therapeutic effect of seeing the blood drain from the body. Pain in the body also triggers endorphins, giving the person a kick and a sense of peace and security, which may also explain the addictive risk of it all. Self-harming behavior also gives the person an opportunity to bandage himself afterwards, which for many also creates a sense of security and independence. As far as treatment for self-harm and depression in young, mentalization-based therapy has shown good results. Use free example research proposal on self-harm to write a good research paper on the topic. At EssayLib.com writing service you can order a custom research proposal on Self-Harm topics. Your research paper proposal will be written from scratch. We hire top-rated PhD and Master’s writers only to provide students with professional research proposal help at affordable rates. Each customer will get a non-plagiarized paper with timely delivery. Just visit our website and fill in the order form with all proposal details: Enjoy our professional research proposal writing service!

Tuesday, November 26, 2019

Deforestation in Cuba.

Deforestation in Cuba. Centuries prior to the ruling of the Castro government, in the 16th centuryprecisely, 90 percent of Cuba was covered with forests. Agriculture Ministry officials inCuba revealed that the Castro government, in the last for decades, had sown 1.24million acres of trees, of which were mainly derived from the mountainous zones of theSierra Maestra, Escambray, and Sierra de los Organos. This reduced Cuba's forestcover to 53 percent and by 1960 it was down by 13.5 percent. Ultimately, mining,farming, sugar planting, supplying timber and setting up cattle ranches, demolishedCuba's forests over the centuries.Deforestation, in any case, is both detrimental to the environment and to theeconomy of Cuba. Forest products are extremely important to the economical well-beingof Cuba because they play a primary role in the production of tobacco, sugar, and citrusfruits, a few of the island's main exports, as well as in construction and electrical andtelephone services.Pico Torquino in the Sierra Maest ra, Cuba's highes...Above all, forests play a crucial role in the protection andconservation of Cuba's natural resources and their contribution to improving theenvironment as a whole.In Cuba, there are approximately 40,000 persons who are employed in theforest sector, which includes 1,200 professionals, 2,000 technicians, and 70 researchers,to name a few. Since forests are a source of long-term employment, particularly in ruralcommunities, many people who work in the forest sector, who rely on forests as theirmain source of income, find themselves facing the possibility of unemployment with theonset of deforestation.Currently, several initiatives are being undertaken to improve the issue ofdeforestation. Current initiatives include a joint initiative of the Cuban and Canadiangovernments as part of their cooperation program called the Institutional Strengtheningof the Cuban Forest Service...

Friday, November 22, 2019

10 Career Paths to Explore After Graduation

10 Career Paths to Explore After Graduation You did it! Degree in hand, head held high, you’re ready to take on the world. But†¦what will you do? The world is filled with opportunities, but you’re not sure where a passion for, say, sociology and literature and the environment might collide into a career. Never fear: there’s a career for you, ready for the taking. Read on to figure out how to determine where your skill sets and passions can lead you. Here is an infographic from enchancv  showing the different career paths you can explore after graduation.

Thursday, November 21, 2019

Carmen Jones Essay Example | Topics and Well Written Essays - 1000 words

Carmen Jones - Essay Example Carmen Jones was a 1943 musical which was later adapted to film in 1954. Much of the original cast was African American during a time in this country when segregation was still prominent. This fictional story is centered around one character by the name of Carmen Jones and is done so in musical fashion. Carmen Jones is a young woman who makes parachutes for the flyboys in the American military. Incidentally, Carmen falls in love with one flyboy in particular named Joe. Joe however, is initially in love with another girl by the name of Cindy Lou. Joe intends to marry Cindy Lou on his next day of leave only to spurn Carmen’s jealousy enough to cause her to destroy a parachute. Since the parachute is government property, Carmen is in danger of getting in to trouble for doing so, so she must flea and does so with Joe. As they run off together, Carmen is able to both enchant and seduce Joe, who quickly forgets about Cindy Lou. As a result, Joe does not return to his post as he is s upposed to and therefore is court marshaled. Carmen in the meantime, meets a boxer in a saloon who invites her and her friends to attend his next boxing match. At first, Carmen does not consent to go but then later sees the wealth bestowed on her friends by Husky the boxer, and so therefore decides to accept the advances of Husky while rejecting Joe altogether. While at the apartment of Husky the boxer, Carmen has her cards read to her wherein she learns that death is soon coming for her. Additionally, Joe is confronted with Cindy Lou who wishes fro him to return to her and marry her. He rejects her completely as he is in love with Carmen. Incidentally, it is Joe who comes for her shortly after this in hopes of convincing her to come back to him. When she rejects him, he kills her thereby fulfilling the prophecy of the cards. In looking at the multi-layered themes of this piece, there is a lot to

Tuesday, November 19, 2019

Business Dissertation proposal Research Example | Topics and Well Written Essays - 1000 words

Business Dissertation - Research Proposal Example A largely qualitative methodology will be adopted for primary data collection. An e-mail questionnaire will be the basic tool of the survey. The sample of SMEs will be a systematic random one and it will be drawn from national business registers. Since this will be a small-scale study the data will be analyzed by manual methods using a "data preparation grid" (Munn and Drever, 1990). The use of structured grids facilitates the identification of emerging patterns. The literature search will aim to be comprehensive, but restricted access to primary literature, for example due to the remote location of material sought, will exclude consideration of some sources in the actual literature review. The collection of primary data will be based on a survey of 100 SMEs, the number in the sample limited due to the restrictions of time to complete the project and resources to support it. 8. Resources Computing and library facilities at University will be used extensively in support of the project. 7. Timetable

Saturday, November 16, 2019

Description of incident between Black BMW and white Lexus Essay Example for Free

Description of incident between Black BMW and white Lexus Essay Description of incident Introduction                   At 9 a.m. Sunday morning, I was on my way to meet a client for a 10:15 a.m. appointment. I was driving northbound on the number two lane of the Northbound I- 110 freeway, at a speed of 70 miles per hour. The freeway was smooth without traffic that morning. While I was driving, a 2005 Black BMW suddenly attempted to move from the number one lane into the number two lane. As a result, I lost control of the vehicle and collided with the 2005 Black BMW on its rear (Doctor Who Online YaWHO Group Yahoo! Groups. ). The impact caused the 2005 Black BMW to spin and hitting another car, a 2009 white Lexus, which received minor impact. We noticed that the passenger of the BMW was stuck in his vehicle, and his car was leaking fluids. Fortunately, we were able to get the passenger out with minor injuries.                   At 9:20 a.m., I called 911 and the Highway Patrol officer arrived 5 minutes later. He interviewed all the people who were involved in the accident and witnesses as well. After 10 minutes, the Fire Department came to clear out accident and clean the highway. Only minor injuries were reported; hence no one was taken to hospital. Follow up actions                   After the incident, I interacted with the people involved in the accident. I also took photographs of the damages to the car. At 9:30 a.m., I called my supervisor, Cesar Serrano, to take care of the insurance company. I called the client to inform him that I will not be able to meet with him because of the occurrence. Tomorrow, I plan to submit for check-up on any further injuries. References Doctor Who Online YaWHO Group Yahoo! Groups. n.d. Yahoo! Groups. https://groups.yahoo.com/group/drwho-online/messages/2?tidx=1. 5 March 2015. Source document

Thursday, November 14, 2019

Impossible To Get Rid Of Violence On Television :: essays research papers

TV Violence: Impossible To Get Rid of Violence on Television   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Tear gas flushes a gunman out of a house where he had been held up. He comes out shooting, then falls in a hail of bullets from the S.W.A.T team. A film of the shoot-out and removal of the gunman's body appear on the on the evening news. Is this what Americans want to watch, or should it be censored out of the news? Many people think it should be banned. But would that be breaking the first amendment?   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  I believe that TV doesn't control what people do, people control what people do. There was violence before TV was invented, but people can't blame themselves, so they blame TV for their problems. In most shows murderers get caught or killed. Why would someone want to take the risk of getting killed just to act like someone on TV?   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Getting rid of TV violence will not change the way people think. People will always think of violence. How could they of anything else? Violence is everywhere, TV, Music, Movies, Video games, news, and newspaper. You would have to ban all violence to stop people from thinking about it. TV is not the only problem. Is there too much TV violence, or is it just what people want to see? In a recent survey, violent scenes in nonfictional shows went up 150% and in fictional shows they went up 39%. The overall violence went up 41%.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  What about the V-chip? The chip that would block out violence and sex on TV.

Monday, November 11, 2019

Informative Marijuana Speech Essay

Marijuana, the â€Å"Killer Drug† as it has been called, has been around for longer than you think a. People really don’t know the origins or the properties of the plant at all. b. Not only has the usage of pot grown in recent years, but the number of strains and uses have grown as well. Lately state legislation across the nation have allowed marijuana for medical and even recreational use. However there are still many out there against marijuana, saying it’s harmful for you or makes you lazy and inattentive Transition: The growing of marijuana on American soil actually dates back to the 1600’s in the form of Hemp and wasn’t considered the â€Å"Killer Drug† until about 1910 Body: 1. Back then hemp was used to produce rope, sails, and clothing. a. All vital finished products that the colonists relied on to live. 2. In fact in 1619 the Virginia Assembly passed a legislation that required each and every farmer to grow hemp on their land. a. Hemp comes from the fibers of a marijuana plant stem. b. Hemp became so important that it actually was considered a legal tender in colonial markets. i. In fact the Deceleration of Independence was written on hemp. 3. However back then, no one thought to every grind it up and put it in a pipe like people do nowadays. 4. As the 19th century rolled around many pharmacies began using at refined hemp, marijuana, in many medicines to treat ailments ranging from a toothache to a broken heart. 5. Marijuana didn’t get a bad name until 1910 during the Mexican Revolution. a. During the revolution Mexicans came over the border in waves and with them they introduced marijuana for recreational uses to the U.S. citizens b. The plant became associated with the immigrants, and the public fear and prejudice became one with marijuana. Any terrible crime that was committed by a Mexican immigrant was blamed on marijuana. i. That’s just unfair honestly. c. It took until the 1960’s for marijuana to be used widely in America. i. Reports commissioned by JFK and Johnson discovered that marijuana had no chemicals present that led to violence nor lead to heavier drug usage. (PBS) Transition: Since then marijuana enthusiasts went all out creating new strains with different purposes and â€Å"highs† as you’d call it. 1. A strain is a specific type of marijuana, like a specific species. 2. All strains of marijuana come from two basic types. a. Sativa and Indica. 3. Sativa plants usually grow tall and thin and are better suited for outdoor farming because it’s hard to grow a plant indoors that can sometimes reach 25 feet in height a. Also the Sativa high you get is more known to provide energy and can be very uplifting to the user. This uplifting energy also sparks creativity in which you can see in many artists and musicians work. 4. Indica plants are nearly the exact opposite. They are better suited to indoor growing because its tendency to grow short and wide. a. The high you get from indica is usually a sleepy, groggy high. â€Å"Couch Locked† as people like to call it. Indica strains tend to have a very strong sweet or sour odor to the buds that can be very relaxing and is helpful when treating severe anxiety, sleeping disorders, and general body pain. 5. However these two strains are usually bred together to target certain form of effects that can be better suited to treat illnesses or just to be way more fun to smoke. Tra nsition: Currently the politicians around the country have begun passing legislation on the legal uses of marijuana. 1. As many people already know Colorado and Washington both have legalized marijuana for recreational use. a. Some may say California has too, but at this point it’s still supposed to be solely for medicinal purposes, and you will be arrested without the proper licenses to possess marijuana. b. As of now there are 20 states in the nation that have some form of legalization. i. Two states, California and Washington, have completely legalized weed. ii. Whereas the other 18 states have either decriminalized possession, making it a civil fine rather than criminal, or has made it attainable for medicinal use. c. The nation is taking steps, slowly but surely, to legalization across the board. Transition: However the legal use of weed just doesn’t benefit patients with  painful diseases, or people just trying to relax and have a good time. It could benefit the nation’s economy. Drastically. 1. Marijuana is currently one of the largest cash crops in the nation, and the government is receiving no benefit from it a. As of right now it is the largest cash crop in 3 states, a top 3 crop in 30, and a top 5 crop in 39 states. (NCBS). i. These profits are readily accessible as well. 2. Since there has never been a time of widespread legal use among the nation’s people, it’s very hard to judge the kind of profits that will come from the sales. a. Economists for NBC have judged that this new market can raise anywhere from 10 to even 40 billion, but with the potential to grow to even 100 billion annually. Transition: It’s apparent that the selling of marijuana can generate large profits, but do you know the health benefits and risks? 1. First off there has never been a recorded overdose death because of marijuana. a. That’s a few million deaths short of alcohol and tobacco cause 2. Marijuana is used by cancer patients to reduce pain and induce appetite. a. I’d like to quote a high school buddy of mine who was diagnosed with cancer at 18 â€Å"They say pot smoking is entrance to harder drugs†¦ I say it’s an entrance to the local drive through.† 3. According to the University of California, marijuana has been know n to increase happiness, reduce anxiety, and might even contain cancer preventing chemicals. a. However, long term usage has also been linked to increased schizophrenia at an older age, as well as lowered IQ’s in young developing minds. 4. The big question is it addictive? a. Some say â€Å"yes absolutely addictive! You’ll rot your mind out kid!† b. Scientists claim that marijuana is addictive, others claim the opposite. (WeedBlog) c. If you asked a user however they’d tell you straight up â€Å"I can quit whenever I want, I just choose not to.† d. I’m going to quote the late comedian Richard Neville here â€Å"Is marijuana addictive? Yes, in the sense that most of the really pleasant things in life are worth repeating.† Transition: Hopefully I was able to shed some light onto y’all about a very controversial subject in our modern society. Ending 1. So next time you judge someone for smoking down, think about what I’ve told you. a. Its history in the U.S. dates back before the Deceleration of Independence was signed. i. Artists from all over the world for many decades attribute marijuana to their creativeness and success. ii. It’s one of the few all natural medicines out there with no nasty side effects. iii. Not to mention we as a people are just years away from full legalization. b. Marijuana has been entrenched in our society for a long time, and it’ll be here for even longer.

Saturday, November 9, 2019

My Eldest Cousin Essay

Many people admire singers, movie stars, who make so much money that they could do everything they want and are famous. However, they don’t even know the person or their personality whom they admire. To me, admiration is a kind of respect. But there aren’t a lot of people who deserve this sort of respect from me in this world. Respecting my parents who raised me is the important thing that I have to do for the rest of my life. Besides my parents, my eldest cousin is the only person who made me look at things differently. He is two years older than me. His name is Khoi. I can remember when I was a high school kid. My family used to live in a rural town that was far away from my school. For convenience, I had to stay temporarily in my aunt’s house for studying. My aunt has only one son who is my eldest cousin. He has curly hair, tall with dark skin and his body was built with muscle. Those things made him look extremely strong. I could imagine that he is like a stone, like Bruce Lee. He was very good at sports. Read more:  Most admirable person  essay Playing basketball was his favorite one. Whenever he played, his team won most of the time. It was interesting to observe how extremely emotionally involved he was in the game. He had many fans in our school, many people liked him. I can remember one of his games. His team was down by three points and they had only five seconds left, he had the ball from a teammate and then he made a three pointer to make the game in a tie. They went over time. Finally, his team won by five points. After finishing the game, some of his fans carried him and ran around the basketball court for celebrating. Sport was always for him a source of fun, emotions, experiences, which are important ingredients in his spiritual life. Not only he was very good at sports, but also his knowledge was broad. He was the person who had the highest grades in the school. All teachers loved him, they always told us â€Å" Khoi is a good student, he deserves to be the person for you to learn from†. He did too great in the school. Consequently, few people hated him because they were jealous. Despite of the fact that he was a good student in our school, he wasn’t haughty. He always thought that he had to learn more and more every day even though he was only 18 years old by that time. At home, he was also a good son. He always respected his parents and elders. He helped his mother to clean house, wash dishes, mop floors more and more†¦ He also helped me on my homework, helped me whenever I got in troubles. Our neighbors liked him too. One of our neighbor talked to his parents and said â€Å"You have a great son, you must be proud of him†. His parents were very happy. My cousin never stopped learning new things. He always got advices from other people even though he had his ideas to solve his problems. He became a business man successfully after finishing his major. He was glad to help everyone who was in our family whenever we had troubles. He taught me about life experience and helped me when I got in troubles. For example, after a long day of work he was really tired and just wanted to go home and took a nap. Instead, he spent time and listened to me about troubles that I had. And then he solved the problems and gave me some advices before taking the shower. In conclusion, I admire my eldest cousin because he taught me about life, and tried to help me when I needed him. He is the greatest person that I’ve ever known. He is the person that I would like to learn from. He advised me that I need to treat people respectfully; I should not stop learning new things and try to help people if they need me. Otherwise, my life will be meaningless.

Thursday, November 7, 2019

Employee Data Collection Training and Six Sigma Quality Process Terms

Employee Data Collection Training and Six Sigma Quality Process Terms University of Phoenix Material Employee Data Collection Training and Six Sigma Quality Process Terms and Concepts Table Part One Complete this table regarding operations management. Write, in your own words, a description of the term or concept. Reference the source where you found the information. Term or conceptDescription Source Key performance indicatorsKey performance indicators are a form of performance measurement that evaluates the success of an activity or how progress is going within an organization.Jacobs, F. R., & Chase, R. B. (2011). Operations and Supply Chain Management (13th ed.). New York, NY: McGraw-Hill Irwin. Operations managementOperations management is the management of the day to day tasks and/or activities of an organization such as a production assembly line. Russell, R. S., & Taylor, B. W. (2011). Operations management: Creating value along the supply chain (7th ed.). Hoboken, NJ: John Wiley & Sons. ProductivityProductivity is the measure of the efficiency of production of something.Jacobs, F. R., & Chase, R. B. (2011). Operations and Supply Chain Management (13th ed.). New York, NY: McGraw-Hill Irwin. Supply chain managementSupply chain management is the management of materials, resources, information, and services from the suppliers to the end customer(s).Russell, R. S., & Taylor, B. W. (2011). Operations management: Creating value along the supply chain (7th ed.). Hoboken, NJ: John Wiley & Sons. Value chainValue chain is the set of steps that identify each step in the supply chain and emphasizes the steps that create value and identifies the ones that do not.Jacobs, F. R., & Chase, R. B. (2011). Operations and Supply Chain Management (13th ed.). New York, NY: McGraw-Hill Irwin. Control chartA control chart is a graph that is used to study how a process changes over time in order to evaluate ways to make improves. It has a central line that is used to show the average.http://asq.org/learn-about-quality/data-collection-analysis-tools/overview/control-chart.html Control limitsControl limits are limits that are set on a statistical process control chart and have three standard deviations on the upper portion and three standard deviations on the lower portion.wiley.com/college/stat/wild329363/student/Ch13.pdf Process capabilityProcess capability is the ability of the process to meet specifications or requirements.Sahay, Ph.D., A. (2012). Process Capability Analysis for Six Sigma. In Statistical Tools in Six SIgma DMAIC Process with Minitab Applications (Vol. 1). RangeRange is the difference between the maximum and the minimum values.Russell, R. S., & Taylor, B. W. (2011). Operations management: Creating value along the supply chain (7th ed.). Hoboken, NJ: John Wiley & Sons. SampleA sample is a set of data that is used in statistics taken from a larger group. Russell, R. S., & Taylor, B. W. (2011). Operations management: Creating value along the supply chain (7th ed.). Hoboken, NJ: John Wiley & Sons. Statistical process controlStatistical process control are methods used to monitor and control a process. Sahay, Ph.D., A. (2012). Process Capability Analysis for Six Sigma. In Statistical Tools in Six SIgma DMAIC Process with Minitab Applications (Vol. 1). Process flow chartProcess flow chart is a graphical chart that shows all the steps in a process and the decision points that need to be made during that process.Jacobs, F. R., & Chase, R. B. (2011). Operations and Supply Chain Management (13th ed.). New York, NY: McGraw-Hill Irwin. Six SigmaSix Sigma is a philosophy and methods that an organizations uses to identify defects in a business process that is used in day to day operations. It is used to eliminate waste and defects in those processes.Jacobs, F. R., & Chase, R. B. (2011). Operations and Supply Chain Management (13th ed.). New York, NY: McGraw-Hill Irwin. Part Two Complete this table regarding the Six Sigma quality process. Write, in your own words, a description of the term or concept. Reference the source where you found the information. Term or conceptDescription Source Explain the Six Sigma process.Basically, the Six Sigma process is a highly disciplined process that helps companies develop and deliver almost perfect products and services.Jacobs, F. R., & Chase, R. B. (2011). Operations and Supply Chain Management (13th ed.). New York, NY: McGraw-Hill Irwin. What is DMAIC?DMAIC is a five phase strategy that is used to improve business processes. Define, Measure, Analyze, Improve, and Control are the phases that are used in this strategy. http://asq.org/learn-about-quality/six-sigma/overview/dmaic.html What is the role of a Master Black Belt?The role of the Master Black Belt trains and coaches Black Belts and Green Belts. They Employee Data Collection Training and Six Sigma Quality Process Terms University of Phoenix Material Employee Data Collection Training and Six Sigma Quality Process Terms and Concepts Table Part One Complete this table regarding operations management. Write, in your own words, a description of the term or concept. Reference the source where you found the information. Term or conceptDescription Source Key performance indicators Operations management Productivity Supply chain management Value chain Control chart Control limits Process capability Range Sample Statistical process control Process flow chart Six Sigma Part Two Complete this table regarding the Six Sigma quality process. Write, in your own words, a description of the term or concept. Reference the source where you found the information. Term or conceptDescription Source Explain the Six Sigma process. What is DMAIC? What is the role of a Master Black Belt? What is the role of the Black Belt? What is the role of a Green Belt? What is Design for Six Sigma?

Tuesday, November 5, 2019

The Dancing Raisin Experiment

The Dancing Raisin Experiment Raisins may be dehydrated grapes, but when you add a certain liquid to them they become hip-hoppin’ dancers- at least, thats how they look. To demonstrate the principles of density and buoyancy, all you need is a little carbon dioxide gas  to get those raisins doing the jitterbug. To create carbon dioxide in the kitchen you can use baking soda and vinegar or with the less messy (and less predictable) clear, carbonated soda. Materials This is a low-cost project, and the materials you need are easy to find in the grocery store. They include: 2 to 3 clear glasses (depending on how many versions of the experiment you want to run at the same time)A box of raisinsClear, well-carbonated soda (tonic water, club soda, and Sprite all work well)  or  baking soda, vinegar, and water Hypothesis Start by asking following question and record the answer on a piece of paper: What do you think happens when you put raisins in soda? The Dancing Raisins Experiment Decide whether you want to use soda or baking soda and vinegar to conduct the experiment or if you want to compare what happens in both versions of the experiment. Note: For the baking soda and vinegar version of the experiment, you’ll need to fill the glass halfway with water. Add 1 tablespoon of baking soda, stirring to make sure it dissolves completely. Add enough vinegar to make the glass about three-quarters full, then proceed to Step 3. Put out one clear glass for every different type of soda you’ll be testing. Try different brands and flavors; anything goes so long as you can see the raisins. Make sure your soda hasn’t gone flat and then fill each glass to the halfway mark.Plop a couple of raisins into each glass. Don’t be alarmed if they sink to the bottom; that’s supposed to happen.Turn on some dance music and observe the raisins. Soon they should begin dancing their way to the top of the glass. Observations and Questions to Ask What happened when you first dropped the raisins in the glass?Why did they sink?Once they started dancing, did the raisins stay at the top?What else did you notice happening to the raisins? Did they look different?Do you think the same thing would have happened if you put raisins in water?What other objects do you think would dance in soda? Scientific Principles at Work As you observed the raisins, you should have noticed that they initially sank to the bottom of the glass. That’s due to their density, which is greater than that of liquid. But because raisins have a rough, dented surface, they are filled with air pockets. These air pockets attract the carbon dioxide gas in the liquid, creating the little bubbles you should have observed on the surface of the raisins. The carbon dioxide bubbles increase the volume of each raisin without raising its  mass. When the volume increases and the mass does not, the density of the raisins is lowered. The raisins are now less dense than the surrounding fluid, so they rise to the surface. At the surface, the carbon dioxide bubbles pop and the raisins’ density changes again. That’s why they sink again. The whole process is repeated, making it look as though the raisins are dancing. Extend the Learning Try putting the raisins in a jar that has a replaceable lid or directly into a bottle of soda. What happens to the raisins when you put the lid or cap back on? What happens when you take it back off?

Saturday, November 2, 2019

Rainwater Harvesting Essay Example | Topics and Well Written Essays - 250 words

Rainwater Harvesting - Essay Example Furthermore, the tanks have a 15-year warranty and use up-to-date technology to ensure the water is safe for human consumption (JFC n.p.). The availability of different sizes makes the system ideal for areas without water security. The installation process is cost efficient as the tank can be backfilled with pea-gravel instead of backfill. Furthermore, the assembling of the tank can take place on-site, and the assembly instructions provided eliminating the costs of hiring a crane. The Stormsaver provides high-quality rain harvesting systems at competitive prices. It provides its services for domestic and commercial use. Testimonials from users of the system argue that the installation has halved their water bill, and the installation budget is small. According to John Thorne, the Stormsaver System cost  £2,500 and an extra  £5,000 to install (Stormsaver n.p.). The plant reduces domestic consumption as the water covers toilet flushing and sprinkler systems. Furthermore, the company offers free servicing, maintenance and installation, reducing the cost of purchase and