Density Demonstration How To Make a Rainbow in a Glass

You dont have to use lots of different chemicals to make a colorful density column. This project uses colored sugar solutions made at different concentrations. The solutions will form layers, from least dense, on top, to most dense (concentrated) at the bottom of the glass. Difficulty: Easy Time Required: minutes What You Need SugarWaterFood coloringTablespoon5 glasses or clear plastic cups The Process Line up five glasses. Add 1 tablespoon (15 g) of sugar to the first glass, 2 tablespoons (30 g) of sugar to the second glass, 3 tablespoons of sugar (45 g) to the third glass, and 4 tablespoons of sugar (60 g) to the fourth glass. The fifth glass remains empty.Add 3 tablespoons (45 ml) of water to each of the first 4 glasses. Stir each solution. If the sugar does not dissolve in any of the four glasses, then add one more tablespoon (15 ml) of water to each of the four glasses.Add 2-3 drops of red food coloring to the first glass, yellow food coloring to the second glass, green food coloring to the third glass, and blue food coloring to the fourth glass. Stir each solution.Now lets make a rainbow using the different density solutions. Fill the last glass about one-fourth full of the blue sugar solution.Carefully layer some green sugar solution above the blue liquid. Do this by putting a spoon in the glass, just above the blue layer, and pouring the green solution slowly over the back of the spoon. If you do this right, you wont disturb the blue solution much at all. Add green solution until the glass is about half full.Now layer the yellow solution above the green liquid, using the back of the spoon. Fill the glass to three-quarters full.Finally, layer the red solution above the yellow liquid. Fill the glass the rest of the way. Safety and Tips The sugar solutions are miscible, or mixable, so the colors will bleed into each other and eventually mix.If you stir the rainbow, what will happen? Because this density column is made with different concentrations of the same chemical (sugar or sucrose), stirring would mix the solution. It would not un-mix  like you would see with oil and water.Try to avoid using gel food coloring. It is difficult to mix the gels  into the solution.If your sugar wont dissolve, an alternative to adding more water is to microwave  the solutions for about 30 seconds at a time until the sugar dissolves. If you heat the water, use care to avoid burns.If you want to make layers you can drink, try substituting unsweetened soft drink mix for the food coloring, or four flavors of a sweetened mix for the sugar plus coloring.Let heated  solutions cool before pouring them. Youll avoid burns, plus the liquid will thicken as it cools so the layers wont mix as easily.Use a narrow container rather than a wi de one to see the colors the best,

Pros and Cons of Drinking Alcohol - 1305 Words

Alcohol abuse is the most common problem, nowadays. In fact, majority of people drink alcohol repeatedly to the point where they have difficulty to stop. Statistics show that, as much as, â€Å"40% of college students report drinking five or more drinks in one episode† (Walters Baer, 2006). Alcohol has become more popular over the years as advertisements, simultaneously with commercials of it, filled the media. It also is easily accessible and cheap in comparison to other psychoactive substances. On the other hand, alcohol safety awareness programs are barely noticeable. My research will present how alcohol and its abuse gets into people’s lives and how it influences their physical and mental health, as well as, social existence. Let’s ask†¦show more content†¦Although society likes to name alcoholism a disease, in fact, it is only a strong behavioral problem. A research done by Elvin Morton Jellinek, described later in his book, got him to conclu de that alcoholism was biologically induced. Not only I disagree with his thesis, but I also think his beliefs were simply naive. Trying to define a disease, we should think of a genetic imbalance that no one is able to refuse. On the other hand, an addiction is a choice of a way of dealing with emotions. Certainly, we are not able to rewrite genetic code, but we can manage our own emotions and actions. Nevertheless, no matter how an alcohol addiction originates, it still progresses in the same pattern. An adventure with alcohol always begins with, seemingly harmless, social drinking, which is referred to, by professionals, as phase 1. People are trying to have a good time as often as possible, and almost every time, liquors are present. No one is then considering frequency of filling their body-cells with damaging substance. Let’s, now, take a look at a table presented by Howard C. Becker in one of his publications for NIAAA. Figure 1. Schematic illustration of how problem drinking can lead to the development of dependence, repeated withdrawal experiences, and enhanced vulnerability to relapse. The graph shows, that it takes as little as one step to start harming a human organism, and about two steps to get stuck insideShow MoreRelatedDrinking At 18 Legal Or Not949 Words   |  4 PagesDrinking at 18 legal or not Changing the drinking age from 21 to 18 has been a controversial argument for many years now, Even though every states legal drinking age is 21 there is some states that make certain exceptions in some situations. There is many pros and cons to changing this such as a good thing is some 18 year olds may not binge drink as they do when they turn 21. 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Water Pollution Project

Water pollution project considers the issue of water pollution with its causes, effects, and solutions. The project presents the problem of the contamination of lakes, waterways, seas, groundwater. This process directly or indirectly impacted by discharged pollutants into water bodies. The inappropriate treatment of toxic compounds removal expands the scales of contamination. Water pollution project explains that pollution harms the water biosphere and negatively affect organisms living in these bodies of water. The consequence is degeneration of individual species with the extinction of the entire population. The solution to the case remains a complex issue in the modernity. The specific pollutants which cause contamination include various chemicals and pathogens. Environmental changes, raised temperature and discoloration have a disastrous impact on the lakes. Chemicals as calcium, sodium, iron or manganese are naturally transpiring into water. The concentration of elements determines a natural composition of water, meanwhile, high concentrations of various elements cause a negative impact on water plants and fauna. Oxygen-depleting materials are natural substances as plant material anthropogenic chemicals. However, natural substances create turbidity which blocks radiation and disrupts plant germination. The chemical substances that discharge factories or plants are toxic. Pathogens cause waterborne diseases that affect human health. The change of waters chemistry involves acidity, temperature, electrical conductivity, and eutrophication. Eutrophication is an increase in the concentration of biogenous elements in an ecosystem. This process changes the productivity of the ecosystem. The consequences of eutrophication have various negative environmental effects. Oxygen depletion and drastic reductions in water quality decrease fish and animal populations in water bodies. Resolutions on the control of wastes must consider all the technical factors that produce it. This arrangement should prevent further pollution or any possible harm to the ecosystem. It is important to estimate the disposal including the use of wastewater. In urban areas, domestic sewage is utilized by centralized plants. These systems remove 90 percent of the pollutant contents in sewage. Plants have installed system s to exclude toxic elements with pathogens. Environmental experts admit that the efficient approach to reduce pollution is the establishment of polluter pays principle. This law suggests that polluters have to pay to utilize wastes and preserve the environment. Polluter pays should be operated in all kinds of activity. It suggests that tanker owners should pay insurance that covers the cost of the oil spill. In addition, customers should have to pay for synthetic grocery bags. This requirement is common in Ireland. The system encourages recycling and minimizes amounts of waste. Also, factories that use rivers must install refining water pipes. There are various ways to manage and prevent water pollution. The additional taxation is a common arrangement that contributes to the restoration of water bodies. There have to be the laws with standards that can effectively control the amount of waste as well as the set of social and educational programs that provide necessary information about water pollution and its causes. It is important to aware society of the exhaustion of water resources. The donation system and organizations can provide a prominent assistant to the resolution of polluted water. The economic arrangments have a direct impact on the utilization water. The establishment of quotas and manufacturing can improve the issue. Consequently, with a rapid urbanization and industrialization, the water pollution concern becomes a global issue. It necessitates the intervention of international organizations to revise the current situation. The politics should present a valid way to minimize the made harm to the world ocean and implement the special measures to prevent the pollution in future. References Society, N. (2016). National Geographic Freshwater 101: Pollution. National Geographic.Retrieved 21 September 2016, from http://environment.nationalgeographic.com/environment/freshwater/pollution/ Sources and Causes of Water Pollution Conserve Energy Future. (2013). Conserve-Energy-Future. Retrieved 21 September 2016, from http://www.conserve-energy-future.com/sources-and-causes-of-water-pollution.php Water Pollution. (2016). Wwf.panda.org. Retrieved 21 September 2016, from http://wwf.panda.org/about_our_earth/teacher_resources/webfieldtrips/water_pollution/ Water Pollution. (2016). NRDC. Retrieved 21 September 2016, from https://www.nrdc.org/issues/water-pollution Water Pollution Guide. (2016). Water-pollution.org.uk. Retrieved 21 September 2016, from http://www.water-pollution.org.uk/

Breast Cancer A Malignant Tumor - 1203 Words

Chapter I - Introduction Breast cancer is defined as a malignant tumor in the cells of the breast. A cancerous tumor develops when a group of malignant cells invade the tissue surrounding the breast and can spread to other parts of the body (Cancer.org, 2015). This type of cancer is most common in women. However, men can also fall victim to the disease. In 2015, about 230,000 new cases of breast cancer will be diagnosed in women and approximately 40,000 women will die from this disease (Cancer.org, 2015). White Non-Hispanic women have the highest incidence rates for breast cancer; however, African American women have higher mortality rates. Cancer disparities to these non-Hispanics are purported by various factors. These disparities can†¦show more content†¦Breast cancer accounts for almost 14 percent of all cancer cases in the Bronx County, and 9% of all cancer related deaths The best survival rates occur for those who are diagnosed with early stage disease, the American Cancer Society reports tha t between 60 percent of breast cancer cases in the Bronx were found at an early stage. The Bronx County has been reported to contain the largest number of breast cancer deaths and also contribute to the rising levels of breast cancer death in New York (Cancer.org, 2015). Purpose Statement The purpose of this study is to further investigate the role of factors that influence Breast Cancer risks among African American women, ages 40-64 living in the Bronx. Recent studies from large cancer databases have consistently shown that in comparison to White Non-Hispanic women, African American women who have breast cancer often delay seeking treatment. This might be a contributing factor to the disparities in mortality rates. This quantitative and descriptive research aims to investigate the relationship between higher breast cancer mortality rates in African American women and low socioeconomic status. A broad search of literature was reviewed in order to better understand the relation between these variables and their impact on poor treatment outcomes for African American women. Significance of Study Research shows that African American women are predisposed to more aggressive tumors that are more advanced upon diagnosis. This

Rischard Review Questions Free Essays

The second force, new world economy, raises emergence because businesses are now crossing borders and becoming more mobile†¦ Mom of them global. With resources moving around much more, the infrastructure needs to be updated to accommodate theses leaps. Additionally, policies and laws need to be overhauled to ensure that these organizations are playing fairly, paying the appropriate taxes, etc. We will write a custom essay sample on Rischard Review Questions or any similar topic only for you Order Now 2. Why is the new world economy so radically deferent from the old world economy? The new world economy is an environment where Information and resources can Instantly span the globe with the touch of a button. The old world economy, by contrast, was a much slower place to conduct business. These days, much more work an be accomplished in the same amount of time. With computers to assist with calculations, data storage, sharing and transfer, as well as advancements in transportation, Including cars to get people to their destinations faster, trucks, planes and ships to transport goods, the new world economy moves at a much faster pace than was possible before. 3. What does Railcars mean by a crisis of complexity? Is our traditional reliance on reductionism science adequate for dealing with complexity? Explain. We have more data than before but less ways to use it. We wind up with less causal data allowing or cause and effect. As the world population grows and the new world economy adds more and more layers by way of technology advancements and globalization, the need for additional economic, social, political and environmental resources and regulations becomes more essential. 4. Describe the two big forces gap and why they are problematic. As the population grows and technology and economy evolves, we are more and more in need of solutions to the problems that we already have. The new world economy and populations keep advancing at alarming rates but the solutions to our robbers are moving along at a snail’s pace. The gap between these two forces keeps widening more and more and without participation on a global scale, the problems will continue to get worse and worse. 5. What are the three new realities Influencing human Institutions? Tell how they are Influential. Hierarchy to Networks – In a hierarchy, there Is one individual making decisions. Information must be passed down through a chain of individuals, who all 1 OFF person on top is not the subject matter expert. Networks use a more flat method, where individuals or units can make decisions at lower levels, saving time and sources. The Struggling Nation State – The nation state is a structure where the political, environmental and economic systems are contained within a border. Nowadays, with globalization and migration, these lines are getting more and more blurred. Our economies are linked together and dependent upon one another, one country is taking all of the water and polluting what is left in another country and political structures are being redefined. What was once contained and very structured is now falling apart. A new kind of partnership – Where there was once a extinct separation between civil society, the private sector and the public sector, they are becoming more and more intertwined. Civil society has become more and more powerful with the advancement of technology and the ability to communicate instantly to other members and groups around the world. Often, group civil society have done extensive amounts of research and are subject matter experts, which are needed to solve some of these global issues. Many of these global issues cannot be solved without the cooperation of businesses and their incredible resources and massive global reach. Their innovation will be vital to getting some of these issues under control. Often times it is the interest of these companies, which moves us forward, not the interests of governments. 6. Which five of the twenty global issues Richard identifies do you think are most important? Explain your thinking. Page Education – Many underdeveloped countries are Just stuck in a rut, because they cannot get the simplest education, how washing your hand prevents the spread of bacteria or how to reduce the spread of HIVE. Simple methods could be taught on how to distribute water so that they can grow more food. Water Shortages – With arbitration becoming more popular, the need for fresh water becomes more and more off problem. Many areas are using the existing water supplies at unsustainable levels and when the water dries up, they will have a very serious problem on their hands. Commerce – The current laws were not written with commerce in mind. It did not exist then. With commerce growing at incredible rates and being conducted internationally, the laws must be rewritten to keep up with the times. Taxation – Along the same lines of commerce, as we become more global, equines is being conducted more and more across borders. Many companies and organizations are getting away with not paying what is due. The tax code needs and overhaul with this problem considered. Intellectual Property Rights – The idea behind intellectual property rights is that if you innovate, you have the rights to that innovation and are protected from someone taking them from you. This encourages individuals and organizations to spend resources to come up with new ideas without fear of spending that investment for nothing because it was stolen. That is how things are here in the United States. Unfortunately, other countries do not recognize our intellectual property rights laws and steal other ideas which they spent resources to develop which then discourages concerns that require a global commitment or coalition to solve them? Many of these issues are too large for any one country to tackle and many of them are spilling over across borders. Many countries do not have the resources to get themselves out of the hole they are in and continue to deteriorate. Water taken in a country upstream deprives the country downstream of water. Pollution runs downstream and blows across borders. There are many methods which have helped developed countries get to where they are which can easily be shared to help underdeveloped countries get on their feet. Many of these problems must be dealt with from collaboration of many countries, developed and underdeveloped. 8. What are the shared characteristics that span global issues? They are planetary. Without a solution many of these issues will have drastic effects on our common future. They are urgent. The longer we wait, the more damage we do. In some cases, every year that goes by without finding solutions puts us seven years back. They are to expensive to solve in the overall scheme of things. Many of the world’s problems could be solved with a small commitment of the overall GAP. They are tough. Someone has to give something up for others to gain and the interest of one’s self almost always comes before the interests of others. None of these issues has been remedied by the current international setup. 9. Compare what Richard calls hierarchical world government with networked governance? Peggy Hierarchal Government is stacked and all decisions must go through one â€Å"leader†. Networked government is flat and each issue has â€Å"its own robber solving vehicle†, making it much more efficient. 10. What solutions other than global issues networks did Richard identify? Peggy One idea is using a 620 track. This would gather global leaders for each issue, Just as the current 620 gathers for financial issues. Another idea is a new diplomacy track and expanded concept of aid, which would assign expert diplomats who would deal directly with their foreign counterparts. This idea would also assign two budgets – one for country and one for global issues. It would also set up a global participation fund which would help developing countries participate in the global issues. How to cite Rischard Review Questions, Papers

How You Choose Your Major free essay sample

We live in a world where education occupies a very important role. An educated person is someone who is able to learn how analyzes, synthesize, evaluate, and understand. An education often gives to a person the means to sustain his life, to live comfortably or even to live in luxury. The major you choose will be the deciding factor in determining the stability and limits of your future financial situation. A degree in engineering, mathematics, physics, finance, or computer science will lead to a much higher salary than a degree in social work. An educated person is also responsible for using his gained knowledge; in fact, an educated person must have a better rounded-view of the world and will continue to seek knowledge and understanding of it throughout their lives. In this mind, we will then ask the question â€Å"how to become an active member of society by learning how to learn? † To answer this question, I will provide my reasons for selecting Park University and my personal goals after college. We will write a custom essay sample on How You Choose Your Major or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page I decided to come to Park University, because I would like to learn finance. I could have chosen another university, but I have chosen Park University on the one hand because my brother was there for two years already. He told me that it is a good university; there are good teachers, good teaching facilities, beautiful environment, good academic achievement and so on. My father works in the field of finance, so this subject has always interested me. The university shares the academic environment that encourages learning, promotes skills acquisition and reconciles the theoretical education with the practical world. On the other hand, I love everything that is related to accounting and finance; also I want to learn the functioning of an enterprise, study economics problem, and enjoy the problem resolution. I find finance crafts fascinating. It is amazing to see what we can do with the finance. Have you ever asked yourself Why am I here in this life? † , What can I do in this huge world? . I have asked myself these questions many times and I finally conclude that if I am on earth, there must be a reason. So I will do everything to mark my existence. Everyone wants to be successful in life. One of the easiest ways to become successful is to set and achieve your own goals. There are many different types of goals. Some take longer to accomplish than others, and they all have to be approached in a different way. This is why I would like to continue my higher education, working as an account manager in my own office and finally getting married and having a happy family. My educational goals are graduating and continuing the higher education by getting Bachelor, Masters and PhD degrees in my major, Finance. I hope to get all of these degrees with distinction, and of course, that will happen by following certain steps such as studying hard, managing my times and tasks. In addition to these, the most important step is being obedient to God by praying on time and reading the Holy Bible, so God will protect and help me. I grow up in a Christian family and my education was based on biblical teaching. I learned to love everybody like myself. My parents taught me respect of the good and to respect people. They also taught me tolerance, sincerity, loyalty, and the importance of family. My career goal is being an account manager. The knowledge that I will acquire during my college allows me to be a good accountant. Since my childhood, my family has shown me a variety of good habits, one of them being common sense. In my opinion, in order to resolve different types of situations that occur in life, one must have ethical standards. Because having ethics is important in all types of field, but especially in accounting because it deals with large sums of money. There are many things that have happened in our society, because people have no ethical code or common sense to the problems that have happened in our world. Many people have certain personalities that fit the kind of work they do. I consider myself a disciplined person and all the qualities of an accountant suit me well. Such as being a good listening and having ethics in order to help people in the future with their financial problems. I would also like to create a school of accounting in order to share my knowledge and my experiences. Finally an educated person has the responsibilities to learn by himself. He must assume his choice and must take some decision for his life.