Pure Substance Definition and Examples

In chemistry, a pure substance is a sample of matter with both definite and constant composition and distinct chemical properties. To avoid confusion, a pure substance is often referred to as a chemical substance. Examples of Pure Substances Examples of pure substances include chemical elements and compounds. Alloys and other solutions may also be considered pure if they have a constant composition. WaterDiamondGoldTable salt (sodium chloride)EthanolBrassBronzeSaline solution Examples of Substances That Are Not Pure In general, any heterogeneous mixture is not a pure substance. If you can see differences in the composition of a material, its impure, at least as far as chemistry is concerned. RocksOrangesWheatLight bulbsShoesSandwiches Common Definition of a Pure Substance To a non-chemist, a pure substance is anything composed of a single type of material. In other words, it is free of contaminants. So, in addition to elements, compounds, and alloys, a pure substance might include honey, even though it consists of many different types of molecules.  If you add corn syrup to the honey, you no longer have pure honey. Pure alcohol could be ethanol, methanol, or a mixture of different alcohols, but as soon as you add water (which is not an alcohol), you no longer have a pure substance. Which Definition to Use For the most part, it does not matter which definition you use, but if you are asked to give examples of pure substances as part of a homework assignment, go with examples that meet the narrow chemical definition: gold, silver, water, salt, etc.

The education in Britain and China Free Essays

The Education in Britain and China Abstract: Education plays an important role all over the world. A highly developed nation depends on educated professionals and a skilled workforce. Education is an absolute necessity for economic and social development. We will write a custom essay sample on The education in Britain and China or any similar topic only for you Order Now UK and China, sharing different culture, have two typically different education systems. This essay pays more attention to the diversity of two education systems. Some similarities and differences can be found, which can be classified as the comparison in eastern and western education. Key Words: Education; Britain; China; Introduction: The education system of the I-JK is quite special and has an old history of evolution. It differs from that of China, but there are also some connections and differences between two countries. As for which one is better, it depends. Just as a coin has two sides, both are better than each other in some areas. Body: 1 . Education System Education is a vital concern throughout Britain. The Britain education system is divided into early years, primary education, secondary education and tertiary education. While in China the public education is run by the Ministry of Education. All citizens must attend school for at least nine years. The government provides free primary education and secondary education for the teenagers. And there is also pre- school education, higher education and other educations. 1 Pre- school Education Up to age 5, children in Britain may have some pre-schooling in nursery schools, day care or play groups. The government has no obligation to provide such facilities, so many schools are private enterprise arrangement. The condition is similar in China. While the government also provides some financial support for parents in Britain, hat we don’t have in China. Primary School In Britain, primary education is given for the students aging from 5 to 11. In this period, students learn to read and write. It is similar to the educational system in China. 3 Secondary Education In Britain, students from 11 to 16 years old receive secondary education. They follow a general syllabus which leads to the GCSE (General Certificate of Secondary Education). After passing this exam, there is a selection of subjects. Lessons are given together with assignments which need to be completed in order to pass this level. While in China, the aim of three-year middle education is to enter into a better high school. High school is essential for Chinese students to get into a better university. So it is necessary for Chinese students to study hard. 4 Higher Education After further studies in the I-JK, students can accept higher studies. There are about 90 universities, including the Open University, Oxford, and Cambridge, that were established in the 13th Century. Universities are funded indirectly by central government grants. They enjoy complete academic freedom, appoint their own staff, ecide what kind of students to admit, provide their own courses and award their own degrees. Admission is by selection, which is on the basis of A- level results, school reterences and an interview. Older students may quality tor admission through different examinations provided by fundamental courses of further education at colleges. Degrees are awarded after successful continuous work assessment and final examinations. The higher education in China is obviously different from I-JK. In China, it is commonly considered that public universities, especially those national universities are better than private ones, under great nfluence by the Soviet Union’s higher education system. Universities in China generally select their students based on students’ performances in the College Entrance Examinations; the entrance scores required by public universities are typically much higher than those of private ones. 2. Teaching Mode On the whole, we may use â€Å"flexibility’ to describe British mode and â€Å"formality’ to outline Chinese mode. This kind of mode is typical in the universities. In British, there is no fixed text books or bibliography, your texts are in the library and in every aspects of social life related to your specialty. The professor will choose his content of teaching in accordance with the latest trends and requirements of society. Apart from traditional classes and lectures, informal group work, presentation and manual practices also abound, which improve students’ ability to pose new points as well as to analysis and solve practical problems. All of these make them more competitive in the Job market. In contrast, Chinese pattern of teaching is more systematic and rigorous, inheriting the legacy of feudal times. The majesty of teacher prevailing, few disciples dare to defer the supreme authority of their hierophant. This sort of manner ensures the accurate and effective inform of knowledge, while hampers the spirit of innovation. Despite new systems of appraisal of pupils imported from the west, exams still retains its dominant place in evaluating how a student is getting on. That is probably why Chinese â€Å"geniuses† sweep almost all the gold medals of ‘MO, but none manage to get a Nobel Prize in science technology. 3. Conclusion The British school children are not designed for the future to impart certain specialized knowledge, but the key to expand children’s horizons, to develop good abits, for future acceptance of high level education. Children in the classroom learn what they want and how to learn. The class atmosphere is free with no unified regulations or formal syllabus, but with children’s love to move, easy to transfer the characteristics of interest, whenever and wherever possible to replace the teaching content. In addition to simple reading, writing, calculating, music, dancing, painting, and handmade, they also carry out various activities whatever children like. â€Å"Open education† is the biggest characteristic of British school children. This kind of eaching method is used in both group activities and individual activities. A flexible schedule and many self-education materials are used to cultivate children’s independence and creativity. The Chinese education is a little bit different from Britain’s. Children in China are a little more stressed than those in Britain. China’s exam-oriented education is a huge burden for today’s children. Designed to give the students hardly any time to breath, the Chinese education system is adept in teaching the children â€Å"summaries†, also teaching that it’s perfectly acceptable not to uestion the status quo. (A Chinese Teacher’s Perspective: China and the U. S. Education Systems Compared) In conclusion, the differences between Britain and China result from the culture differences. The western education puts emphasis on diversi ty, tree learning atmosphere and the lite principle ot playing, learning and growing. It is something that we lack and need to modestly study. While there is no strict core system in the content of the curriculum, happy growth reduces to follow one’s own inclination. Each has its own merits. All we need to do is that†learn from ach other, take the essence and discard the dregs, and grow together. How to cite The education in Britain and China, Papers

Art As A Reflection Of Anciant Civilization free essay sample

Essay, Research Paper Art as Reflection of Anciant Civilization Ancient Egytian and Greek sociaties both made important parts to western civilisation, specificaly in the countries of political relations and societal construction. The political system of antient Egypt was chiefly based on the religios belife that the Pharoah was a godly entity, while Grecian political relations were based in a democratic system that valued persons in a alone manner. The poitical and societal advancments of both Greek and Egyption civilisations are best reflected in the promotion of each civilizations artwork. In the early land of the Egyption civilisation the Pharoah rulled as a God-King and dictated the faith and Torahs of the land. He promoted a polytheistic faith that was used to explicate natural phinaminans and life after decease. Accourding to this faith all Egyptions non merely the opinion category were offered the hope of endurance in the following universe, as a wages for a good life in the present universe. The thought of a good life is defined by the fans accomplisments in the eyes of Osiris? the justice of the dead? . Funeral services were divised to exeplify these belifes and aid to guid the spirit of the dead into the hereafter ( Cunningham and Reich, 6 ) . The carinate construction of this Thocracy greatly limited individuality in all facet of life, but most significantly art. The art of the Early land was prodominetly bassed on the deity of the Pharoh, and his statuse in sociaty. The most famuse illustration of the Theocracies influance on art would be the Great Spinx and the Pyramids of Chefren. These emence plants of art were created to demo the importance and godly power of the Pharoah, every bit good as, to function as a burial grave. The Sphix itself is sculped with great percisian and close attension was paid to the basic anatimy of the human face, but the fetures of the Pharoah are idialize. ? It is a portiat non of an single but of the construct of deity? ( Cunningham and Reich, 9 ) . The king of beasts organic structure, falcon headgear and transendental stare of the Sphinx shows a certain composure and enigma, that encapsalates the ideal flawlessness of the ideal flawlessness of the Pharoah. In the Middle Kindom Akhenaton came to power and changed the religius construction of Egypt. He belived in a monotheistic system that placed all religion in one God, Aton-Ra. Akhenaton did non dipict himself as an all powerfull God-King, but a courier through which Aton-Ra radius ( qtd. Picco ) . The alterations in the function of the Pharoah, dramaticaly changed the art of the clip. Art began to dipict more physical homo features, and less godly idialism. A rock relife that shows the royal twosome and their three kids sitting under the rise of the Sun God is a good illustration of this alteration. No thirster is the Pharoah dipicted as the most of import figure in Egyption art, and for the first clip other people are shown on the same degree as the Pharoah ( qtd. Picco ) . This monothiestic reign strongly conflicted with the involvement of the priests, ? who had a vested involvement in continuing the old polytheistic traditions? ( Conningham and Reich, 11 ) . Directly following his decease Akhenatons seccessors eched his name from the historical memorials and brought back the traditional polytheistic faith ( Conningham and Reich, 11 ) . By the terminal of the New Kingdom art was back to the criterions of the Old Kingdom. Large pyramids and high relife sculpture that idialized the deity and illustriousness of the Pharoahs were one time angain built, and the monotheistic art of the late Middle Kingdom was forgotten. The influance of this poleithistic rleigion became so strong, that even direct contact with busying civilizations did non consequence the art of the New Kingdom ( Conningham and Reich, 12 ) . Grecian civilisation placed much more importance on persons, instead than on a individual male monarch or God. Greace was broken up into City States and ruled by a figure of politision, much like our present consept of democrocy. The faith of the clip was poleithistic, but because of the seperation of the City States, it neer developed the construction of the preceading Egyptian faith. The Greaks? used their faith to light their ain lives, instead than to give them divine guidance. ? ? They turned to art and literiture, instead than supplication, as a agency of seeking to detect themselves? ( Conningham and Reich, 36-37 ) . This enphicis on ego spawned new beliefs about adult males order in the existence. Contrairy to Egyptian belifes, the Greeks did non see their Supreme beings as the centre existence, and belived that they as worlds had some controle over their ain fate ( Conningham and Reich, 39 ) . The freedom to research the ego allowed the Greeks to do progresss in mathmatics, doctrine, and art. The progresss in doctrine and mathematics had direct influance on the art of the clip. This is first seen in the Protogeometric and Geometric art of the first three centuries of Grecian civilisations. These alone manners show a meticuluse order and persion that was non seen in any preciading period. As the domanint manner changed from Protogeometric to Geometric this order and persion was aplified. The populare? circle and semicirlce paterns were replaced by additive disigns, zigzags, trigons, diamonds, and meanders? ( Conningham and Reich, 40 ) . The increased involvement in order, seems to hold been a relfection of the Grecian captivation with nature, and adult males relationship to nature. This involvement in the order of nature, eventualy evolved into a fasonation with the human signifier and the thought of human flawlessness. Although early Grecian sculpture extremely resembled Egyptian cult statues, distict diferaces in design made Grecian sculpture unusually alone, and in consiquence showed a major difference in the Grecian societal stucture, and thier position the adult male. The first and likely most improtant diference of the Grecian sculptural disign was that the figures were chiefly shown as nude ( Conningham and Reich, 44 ) . This fluctuation on the basic Egyption sculpture shows a definet seperation from the stiff category system of Egypt. By taking apparels from the human figure the pure and true individuality of the topic is revealed. The topic is no longer seen as a merchandise of sociaty but as a creative activity of nature. This position of adult male was futher explored as Grecian idea continude to come on. This advancement is best shown by examing the alteration in stile from the Kouros, signifier Attica to the Kritios Boy, from Acropolis. The Kouros, from Attica showed a difinet atempt to revele the true human signifier. Although the sculpter put great attempt into portraing the existent musculus and bone construction to the topic, he still uses the transendental stare that was so popular in Egyption relife. As Grecian doctrine progressed, the thought the human flawlessness was farther explored in the humanistic disciplines. By 490 B.C. the Kritios Boy, from Acropolis was created and the perfect human signifier was found. The extemely accurate portrail of human anatimy and the pragmatism of the facial expretion, are exeplified by the relaxed stance of the figure. ? For the first clip in ancient art the figure is no longer looking or walking stright in front? ( Conningham and Reich, 44 ) . His caput a nd sholders are shifted to one side while his hips are shifted to the opposit side, and his wieght is placed on one leg. This was the most advanced and realistic portrail of a human figure in the history of anchient art, and is a direct contemplation of the Grecian involvement in the true nature of adult male. The alterations in art from the begining of Egyptian civilisation to the early phases of Grecian civilisation reflect the development of human idea and societal construction. The Egyption art of the Old Kindom portrade a carinate and powerful Theocracy that gave small room for personal interpritation of art. In the Middle Kingdom Akhenaton lead the first artistic revolution by presenting a new religius system. But after his decease, faith and art both reterned to the tradisional manner of the Old Kingdom. The Greeks nevertheless took on a new position of the celestial spheres in wich they put less accent on the Gods and more accent on the human spirit. This new belife system allowed the Greeks to interrupt away from a stiff societal construction and research the human signifier in it? s most pure province. Bibliography Culture and Valuess Lawrence Cunnincham, John Reich

4 Tips On Making Your Movie Review from EssaySupply.com

4 Tips On Making Your Movie Review How to write a movie review For many people, a review can be the making or breaking point of a movie as it is used to help the reader, or in other terms, a potential audience member gains insight about the film. Even the simplest phrase such as "The best" or "The worst" can be the words that help the potential viewer and audience member decide whether or not they will see the film. As a review writer or reviewer, your job is to give your opinion, as well as help the reader decide whether or not they should see the movie for themselves. These are a few tips on how to write an insightful movie review with many high-quality details. Always watch the film first We've all seen this at least once. An article stating that a film that hasn't even come out yet is saying the movie is one of the best films ever to be produced. Or they use phrases and keywords that make it obvious they had never even watched the movie. This can be a huge turn off to an audience as they want to feel as though the opinion is honest about the film they want to watch. So don't base your opinions on what you hear, instead, take a couple of hours to watch the movie once for entertainment, and if you need to get once again a better opinion of it. Find out who your audience is All films are made with a different audience in mind, some differing with only minor details while others differ majorly. For example, you may write a movie review about "300" from an entirely different standpoint if your audience was a group of theater arts students instead of history students. A simple change can completely switch your mindset, and instead of thinking along the terms of "Is this historically accurate" or "did they dress that way." By changing the audience to theater students you begin to think in terms such as "Why did they choose to film there" or "why did they choose to kill those characters, but not those characters." Don't criticize or praise without detail We can all say whether or not a movie is good or bad. However, the reviewer wants to know why. Instead of saying "This movie was too long." Say something along the lines of, "There were too many subplots that pulled away from the actual story" or "Much of the dialogue could have been cut out and it wouldn't have made much of a difference." Even praise shouldn't exist without particular reason or insight. If you find a movie to be wonderfully entertaining, you may be tempted to write how great it was with no hesitation. However, you should still review it from a critique from a standpoint. Instead of saying something along the lines of "This movie was so fantastic, everyone should see it." You may want to say something like, "I enjoyed this film, it was quick to pull me into the story and kept me on the edge of my seat." to give your audience a more exact reason to see the film. Research the filmmaker Find out what other films they have made, take in the details of each film and how they improved with each film. Even use comparisons, by using phrases such as "One of the best films since his last feature presentation hit." or "The film was obviously an attempted repeat of their classic film" to allow the audience to derive a particular viewpoint on the movie based on the words you give them. Following these easy steps allows to learn fast how to make a movie review, or a small reminder for those who alraedy familiar with the assignment.

Mercantalism essays

Mercantalism essays The Spanish, the Dutch, the French, and the English all practiced mercantilism. A term meaning that the worlds wealth was finite and that only one nation could grow rich if another one failed. A nation had to extract more gold from a foreign land and export as little as possible to other nations. But there were significant differences that existed in the colonies established in the New World by the Spanish, the Dutch, the French, and the English. In 1580, Spain came under control of Brazil. This colony was substantially different from the English colonies that were to be established later in the 17th century. The monarchy extended its authority power the entire way to the local communities in the colonies. The colonists didnt have much opportunity to establish political institutions separate from the mother country. Also, the Spanish were much more successful in extracting the silver and gold compared to the British. However, while the extraction of the riches was taking place, agriculture and trade was not being tended to. Another significant dissimilarity is that while the English, Dutch and French yearned to established fixed colonies for family life, the Spanish did the opposite by ruling the colony but not providing or encourage people from Spain to move and live there. The British believed in the principals of mercantilism as much as the French, the Dutch and the Spanish did and Englands mercantilistic program was its successful wool trade which lasted until around 1550 where the its market failed. The forming of new colonies was their solution to that problem. The colonies that were established by the British were a place to create markets for goods and also to settle disputes with the growing poverty and unemployment rate because of the population boom. Besides the economic motives that existed in the colonies, there was also religion in the colonies. The colonies that the British formed w...

A Doll's House by Henrik Ibsen Research Paper Example | Topics and Well Written Essays - 1250 words

A Doll's House by Henrik Ibsen - Research Paper Example Consequently, it is via these events where people while mingling embrace their effective roles based on genders evident in the play. In this play, the author significantly explores the aspect of feminism in the society with intention of creating senses of social equality in regards to both genders. In this play, act as recipients of both oppression and unfair treatment that makes them appear as men’s play objects. Ibsen illustrates an aspect of mistreatment of women through one of the character Nora, where the male individual oppresses the female especially at the family level (Ibsen 24). Henrik exemplifies oppression on women in the society quite evident at various social, economic and political avenues. However, his focus is at family level where the male gender seems to assumes the top rank whereas are subjects almost close to the children they have given birth. Oppression against the female gender is also evident globally whereby despite the level of development of that given region women end up not receiving economic support. As a result, they have no mediums to air the grievances that can help them to demand liberation or champion the colleagues to embrace liberation. The play thus reveals oppression against women by illustrating the societal perception of women. For instance, the society perceives women as the secondary citizen according to the play, as she depends mostly on a man for her survival and existence. According to the play, a woman should be inferior to a man, and her actions should not override the males’ decisions and actions. Parents play an important role in establishing the inferiority complex in the female’s childhood exposure. Nora’s father is an essential initiator of Nora’s perception of the male superiority since her childhood, thus she grew up with the knowledge that the female has to be a male’s subject (Ibsen 104).  Ã‚  

The Love Song of J. Alfred Prufrock Essay Example | Topics and Well Written Essays - 1000 words - 4

The Love Song of J. Alfred Prufrock - Essay Example Elliot has used his poetic skill to create a complex character study. He also creates an image of the period with ladies in long skirts; tea rooms; smoke from chimneys; smoggy evenings; a man in a morning suit with a high collar cutting into his chin. To some extent though the poem reflects, not just the society of the time, but also Elliot’s own place in it and his rather pessimistic view of his own situation. In this essay the poem will be considered as to how it reflects his life. Poetry Genius (2014) describes it as being :- The lines at the beginning are taken from Dante’s ‘Divine Comedy’ and are spoken by one of the damned souls in hell, Count Guido da Montefeltro, who describes how nobody ever returns from this dead state. Prufrock in this poem may be walking and talking in an earthly city, but in some senses he too is one of the living dead, observing society, yet not quite part of it. Prufrock has a companion, a listener to whom he says (line1) ‘Let us go then, you and I.’ It is unclear whether or not this listener is a real companion, or just Prufrock talking to his inner self as an internal monologue in which he describes himself in both negative and positive terms as when he says :- So he sees himself as a lesser figure, an attendant upon society, an extra in a film set perhaps, but with a role nevertheless. He then acts this out, by moving only on the very edges of society, in this case at the head of the stairs, rather in the room with the women talking about Michelangelo. They are interested in a great and admired artist, so why should women even notice him? Even the soot from the many chimneys falls upon him, making him even more invisible (line 19). The original title for the poem was ’Prufrock among the women’ (Cummings, undated). He isn’t interacting with them, and seems totally unable to. He is just there at the same time. Time seems to have stood still for him,