How to Grow Salt Crystals

Table salt, also known as sodium chloride, is a crystal (a symmetrical solid substance made entirely of the same material).  You can see the shape of a salt crystal under a microscope, and you can grow your own salt crystals for fun or for a science fair. Growing salt crystals is fun and easy; the ingredients are right in your kitchen, the crystals are non-toxic, and no special equipment is required.   How to Grow Salt Crystals It takes very little work to start the process of growing salt crystals, though you will need to wait a few hours or days to see the results, depending on the method you use. No matter which method you try, youll need to use a hot stove and boiling water, so adult supervision is advised.   Salt Crystal Materials table salt (sodium chloride)waterclean clear containera piece of cardboard (optional)string and pencil or butter knife (optional) Procedures Stir salt into boiling hot water until no more salt will dissolve (crystals start to appear at the bottom of the container). Be sure the water is as close to boiling as possible. Hot tap water is not sufficient for making the solution. Quick Crystals:  If you want crystals quickly, you can soak a piece of cardboard in this supersaturated salt solution. Once it is soggy, place it on a plate or pan and set it in a warm and sunny location to dry out. Numerous small salt crystals will form. Perfect Crystals:  If you are trying to form a larger, perfect cubic crystal, you will want to make a seed crystal.  To grow a big crystal from a seed crystal, carefully pour the supersaturated salt solution into a clean container (so no undissolved salt gets in), allow the solution to cool, then hang the seed crystal in the solution from a pencil or knife placed across the top of the container. You could cover the container with a coffee filter if you like. Set the container in a location where it can remain undisturbed. You are more likely to get a perfect crystal instead of a mass of crystals if you allow the crystal to grow slowly (cooler temperature, shaded location) in a place free of vibrations. Tips for Success Experiment with different types of table salt. Try iodized salt, un-iodized salt, sea salt, or even salt substitutes. Try using different types of water, such as tap water compared with distilled water. See if there is any difference in the appearance of the crystals.If you are trying for the perfect crystal use un-iodized salt and distilled water. Impurities in either the salt or water can aid dislocation, where new crystals dont stack perfectly on top of previous crystals.The solubility of table salt (or any kind of salt) increases greatly with temperature. Youll get the quickest results if you start with a saturated saline solution, which means you want to dissolve salt in the hottest water available. One trick to increase the amount of salt you can dissolve is to microwave the salt solution. Stir in more salt until it stops dissolving and starts to accumulate at the bottom of the container. Use the clear liquid to grow your crystals. You can filter out the solids using a coffee f ilter or paper towel.

Research Analysis on A Modest Proposal by Heather Mallick

The Niqab and debates around Niqab in Canada Research Essay on A Modest Proposal Vivek Dhanju Centennial College The protection of religious freedom gained attention for quite some time now, and the face veil, more precisely referred to as the niqab has been a hot topic. Many scholars and authors have given their point of view about the issue from time and time again. Heather Mallick in her essay A Modest Proposal discussed the ill-effects of wearing niqab, but does her essay addresses the topic effectively? I believe it does not. During my research on this essay, I came across few other accounts regarding same concern and I have found Gilmour s Niqab debate: What should Canada do? and Freedom of Religion and Accommodating†¦show more content†¦On the other hand, although Gilmour has the same point of view as Mallick regarding banning niqab but her choice of words seems more professional and apt and relates better to the thesis. Moreover, she also took into

A Moment Of Innocence Essay Example For Students

A Moment Of Innocence Essay A Moment of Innocence: Reconciling the PastWhen I walked into class that day I was indifferent to the movie that we would be watching that evening. Five minutes into A Moment of Innocence (1995) by Mohsan Makhmalbaf, I was hooked. By taking a pseudo-documentary style Makhmalbaf lets us see the people as they are transformed into the characters from the director’s past. This style allows us to â€Å"grow up† with them and to relate to both sides of the story. By taking a true event and fictionalizing, at least part of it, Makhmalbaf has us trying to figure out what parts have been added to the narrative and which parts truly speak to history. A documentary does not strive to tell a story, it looks upon events unemotionally and tries not to colour our ideas about the event. A Moment of Innocence is not a documentary but uses the truth function common to that genre to give us an understanding of the events from both sides and makes us think about how our actions effect oth ers every day. If A Moment of Innocence had been a wholly fictional film I do not believe that it would have carried the same emotional impact. Different scenes in the film show us how Makhmalbaf is trying to reconcile his past actions with his feeling today. They also show how he is, while not in any way apologizing for his actions, trying to amend some of the damage he may have caused. We will write a custom essay on A Moment Of Innocence specifically for you for only $16.38 $13.9/page Order now There are several scenes in the film that stand out to me as important. The scene that caught me the most off-guard occurred when Makhmalbaf and young Makhmalbaf went to the director’s cousin’s home to try to enlist her daughter to play the roll her mother had played in real life. For just a moment the daughter and young Makhmalbaf step out of themselves and become the characters that they are playing. They make plans to meet the next day for the incident with the policeman, both look nervous, Makhmalbaf returns and they resume their roles as if the exchange had never occurred. This glimpse into what and how the incident was planned gives the audience a look into the type of people that Makhmalbaf and his cousin were as young adults, scared but sure in their purpose. The scene also allows us to step out of the knowledge that this is staged and shows us the characters as people, not actors. It is a sudden and surprising scene that catches the audience off guard, and make s them see the â€Å"realness† of the situation. By combining this with the documentary feel of the film Makhmalbaf allows us to suspend our disbelief for a brief instant and plunges us into what his reality was at that time. The policeman’s reality is vastly different from that of Makhmalbaf‘s. The most conspicuous example of this occurs when the stabbing incident is staged for the initial time. The policeman becomes aware for the first time that the girl he thought he was falling in love with was actually an accomplice of young Makhmalbaf. He immediately puts a stop to the scene and leads his younger self away from the filming. By our empathy towards the policeman who has lived with the memory of a love he though he had lost for his entire life, it is driven home to us how two people who are involved in the same event can perceive it differently. It is a hard truth for the policeman to face. He needs to reconcile this part of his history, which has suddenly changed for him, with his own new feelings of self-doubt. The policeman was so self-assured up until that moment; he had probably played the stabbing over and over in his mind ever since it happened and thought he had a handle on the tru th. In a way his innocence was shattered and lost at that moment. To have what you think of as the truth ripped away from you so suddenly is a life changing experience. .u4970937812898a4010b6429f3cf2b131 , .u4970937812898a4010b6429f3cf2b131 .postImageUrl , .u4970937812898a4010b6429f3cf2b131 .centered-text-area { min-height: 80px; position: relative; } .u4970937812898a4010b6429f3cf2b131 , .u4970937812898a4010b6429f3cf2b131:hover , .u4970937812898a4010b6429f3cf2b131:visited , .u4970937812898a4010b6429f3cf2b131:active { border:0!important; } .u4970937812898a4010b6429f3cf2b131 .clearfix:after { content: ""; display: table; clear: both; } .u4970937812898a4010b6429f3cf2b131 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u4970937812898a4010b6429f3cf2b131:active , .u4970937812898a4010b6429f3cf2b131:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u4970937812898a4010b6429f3cf2b131 .centered-text-area { width: 100%; position: relative ; } .u4970937812898a4010b6429f3cf2b131 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u4970937812898a4010b6429f3cf2b131 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u4970937812898a4010b6429f3cf2b131 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u4970937812898a4010b6429f3cf2b131:hover .ctaButton { background-color: #34495E!important; } .u4970937812898a4010b6429f3cf2b131 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u4970937812898a4010b6429f3cf2b131 .u4970937812898a4010b6429f3cf2b131-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u4970937812898a4010b6429f3cf2b131:after { content: ""; display: block; clear: both; } READ: Thesis Statement Is Mozarts Requiem Mass EssayThe final scene in A Moment of Innocence reflects the life changing aspect of this story on all the persons involved. In a documentary the final scene in A Moment of Innocence would have been the failed attempt of young Makhmalbaf to retrieve the gun from the young policeman and the stabbing, yet in Makhmalbaf‘s version we are left with a question as to what happened. We know that young Makhmalbaf had the knife hidden below the loaf of flat bread, as in real life, but we also know that, in the staged version, the young policeman gave the small white flower to the girl, unlike real life where he never got the opportunity. This scene is Makhmalbaf‘s way of reconciling the two stories that are converging in this single event. Makhmalbaf leaves us with questions; Could a small change, like the flower being given, had made a difference in the outcome in real life? Could the reluctant young Makhmalbaf had changed his mind and found another way? In giving us these questions to grapple with Makhmalbaf makes us question our own past actions and wonder if we have effected others in ways we have not realized. We can neither repeat our past nor leave it behind us, it is something that we have to live with every day of our lives. A Moment of Innocence is Makhmalbaf‘s way of attempting to reconcile his past actions with the way he feels about them now. Makhmalbaf has given us a film, based upon real events, involving real people, and has fictionalized part of it. Because we know that part of the film is the truth we search for it throughout the entire picture. One thing that I found interesting about this film is that I couldn’t choose sides. Normally when you watch a film you can empathize with one person or another, in this film there was no clear-cut â€Å"bad† person. Even knowing that the stabbing was what was going to happen, I couldn’t choose sides. When you see a documentary it only represents one point of view and you are not driven to choose a side, the only way this film is like a documentary is that it is based upon real events that happened in the not so distant past. A Moment of Innocence could have been called â€Å"Atoning for the Past† as it causes us to question each action we have taken in our lives and how it has impacted others. A Moment of Innocence is Makhmalbaf‘s way of repenting for the harm he caused to policeman, and to himself for the actions he took that day. This film has shown me the genuine subjectiveness of truth. Without knowing that the film was based upon actual events I do not think that it would have had the same impact. Films and Cinema

The Origin Of Our Ideas David Hume Essay Example For Students

The Origin Of Our Ideas David Hume Essay David Hume, a Scottish philosopher and historian who lived from 1711-76, carried the empiricism of John Locke and George Berkeley to the logical extreme of radical skepticism. Although his family wanted him to become a lawyer, he felt an insurmountable resistance to everything but philosophy and learning. Mr. Hume attended Edinburgh University where he studied but did not graduate, and in 1734 he moved to a French town called La Fleche to pursue philosophy. He later returned to Britain and began his literary career. As Hume built up his reputation, he gained more and more political power. He discarded the possibility of certain knowledge, finding in the mind nothing but a series of sensations, and held that cause-and-effect in the natural world derives solely from the conjunction of two impressions. Humes skepticism is also evident in his writings on religion, in which he rejected any rational or natural theology. Besides his chief work, A Treatise of Human Nature (1739-40), he wrote Political Discourses (1752), The Natural History of Religion (1755), and a History of England (1754-62) that was, despite errors of fact, the standard work for many years. We will write a custom essay on The Origin Of Our Ideas David Hume specifically for you for only $16.38 $13.9/page Order now Nothing seems more unbounded than a mans thought, quoted Hume. Hume took genuinely hypothetical elements from Locke and Berkeley but, rejected some lingering metaphysics form their thought, and gave empiricism its clearest and most rigorous formulation. (Stumpf) Hume wanted to build a science of a man, to study human nature by using the methods of physical science. But, with conflicting opinions offered on all subjects how can we know the true nature of things?Hume believed that all knowledge came from experience. He also believed that a persons experiences existed only in the persons mind. Although our body is confined to one planet, our mind can roam instantly into the most distant regions of the universe. Hume believed that there was a world outside of human conscience, but he did not think this could be proved. The contents of the mind can all be reduced to materials given us by the senses and experience, and those materials Hume calls perceptions. Hume grouped perceptions of the mind into one of two categories: impressions and ideas. (Stumpf) Impressions and ideas make up the total content of the mind. Ideas are memories of sensations claimed Hume, but impressions are the cause of the sensation. In other words, an impression is part of a temporary feeling, but an idea is the permanent impact of this feeling. Hume believed that ideas were just dull imitations of impressions. Besides merely distinguishing between impressions there can be no ideas. For if an idea is simply a copy of an impression, it follows that for every idea there must be a prior impression. Humes most original and influential ideas deal with the problem of causality. Neither Locke nor Berkeley challenged the basic principle of causality. For Hume, the very idea of causality is suspect, and he approaches the problem by asking the question, what is the origin of the idea of causality? Since ideas are copies of impressions, Hume asks what gives us the idea of causality. (Feiser) His answer is that there is no impressions corresponding to this idea. How then does the idea of causality arise in the mind? It must be, Hume said, that their idea of causality arises in the mind when we experience certain relations between objects. This idea states that for all effects there is a cause. Hume said that even though the cause preceded the effect, there is no proof that the cause is responsible for the effects occurrence. Did you follow along? Hume also thrived on ones self. Hume denied that we have any idea of self. This may seem paradoxical, that I should say that I do not have an idea of myself, but Hume again tests what is meant by a self by asking from what impression could this idea derive from; do you see a trend forming? Hume compares the mind to a kind of theatre where several perceptions successively make their appearance, but adds that we have not the most distant notion of the place where these scenes are represented.What led Hume to deny the existence of a continuous self