Fun and Interesting Chemistry Facts and Trivia

Chemistry is a fascinating science full of unusual trivia. Some of the  most fun and most  interesting chemistry facts include: The only solid elements that assume liquid form ​at room temperature are bromine and mercury. However, you can melt gallium by holding a lump in the warmth of your hand.Unlike many substances, water expands as it freezes. An ice cube takes up about 9% more volume than the water used to make it.If you pour a handful of salt into a full glass of water, the water level will actually go down rather than overflowing the glass.Similarly, if you mix half a liter of alcohol and half a liter of water, the total volume of the liquid will be less than one liter.There is about 0.5 pound or 250 grams of salt (NaCl) in the average adult human body.A pure element takes many forms. For example, diamond and graphite both are forms of pure carbon.Many radioactive elements actually glow in the dark.The chemical name for water (H2O) is dihydrogen monoxide.The only letter not appearing on the periodic table is J.Lightning strikes produce O3, which is ozone, and strengthen the ozone layer of the at mosphere.The only two non-silvery metals are gold and copper.Although oxygen gas is colorless, the liquid and solid forms of oxygen are blue.The human body contains enough carbon to provide lead (which is really graphite) for 9,000 pencils.Hydrogen is the most abundant element in the universe, while oxygen is the most abundant element in the Earths atmosphere, crust, and oceans (about 49.5%).The rarest naturally occurring element in the Earths crust may be astatine. The entire crust appears to contain about 28 grams of the element.Hydrofluoric acid is so corrosive that it will dissolve glass. Although it is corrosive, hydrofluoric acid is considered to be a weak acid.One bucket full of water contains more atoms than there are buckets of water in the Atlantic ocean.Approximately 20% of the oxygen in the atmosphere was produced by the Amazon rainforest.Helium balloons float because helium is lighter than air.Bee stings are acidic, while wasp stings are alkaline.Hot peppers get their h eat from a molecule called capsaicin. While the molecule acts as an irritant to mammals, including humans, birds lack the receptor responsible for the effect and are immune to the burning sensation from exposure.Its possible to die from drinking too much water.Dry ice is the solid form of carbon dioxide (CO2).Liquid air has a bluish tint, similar to water.You cant freeze helium simply by cooling it to absolute zero. It will freeze if you apply extremely intense pressure.By the time you feel thirsty, youve already lost about 1% of your bodys water.Mars is red because its surface contains a lot of iron oxide or rust.Sometimes, hot water freezes more quickly than cold water. A high school student documented the effect, which bears his name (the Mpemba effect).

Freedom Writers Analysis Essay - 1069 Words

Freedom Writers Director: Richard LaGravenese Brief outline of story: The storyline of the movie takes place between 1992-1995. Beginning with scenes from the 1992 Los Angeles Riots. Hilary Swank plays the role of Erin Gruwell, a new, excited schoolteacher who leaves the safety of her hometown, Newport Beach, to teach at Woodrow Wilson High School in Long Beach, a formerly high achieving school which has recently had an integration program put in place. Her enthusiasm is quickly challenged when she realizes that her classes are all at-risk students, also known as un-teachable, and not the eager students she was expecting. The students segregate themselves into racial groups in the classroom, fights break out, and eventually most†¦show more content†¦After they raise the money to bring her over, she tells them her experiences hiding Anne Frank. When Marcus tells her that she is his hero, she denies it, claiming she was merely doing the right thing. Her denial causes Eva to rethink lying during her testimony. When she testifies, she finally brea ks down and tells the truth, much to some of her family members dismay. Meanwhile, Gruwell asks her students to write their diaries in book form. She compiles the entries and names it The Freedom Writers Diary. Her husband divorces her and Margaret tells her she cannot teach her kids for their junior year. She fights this decision, eventually convincing the superintendent to allow her to teach her kids junior and senior year. The film ends with a note that Gruwell successfully brought many of her students to graduation and college. Textual evidence: The opening scene is of the LA riots in 1992, showing the ciaos in downtown LA. Erin’s determination to teach- â€Å"I want to be here.† The emphasis on Erin’s pearls necklace- symbolising a sense of not belonging. The riots at the school- symbolising ciaos. Close up of Erin’s face at the time of the riots, showing her shock. Eva’s soliloquy- â€Å"you can’t go against you own people, your own blood.† - Symbolism of conformity. Tido raising his hand in class- sign of change. The line game- the class isShow MoreRelatedFilm Analysis on Freedom Writers2290 Words   |  10 PagesFilm Analysis Essay on Freedom Writers Main Credits Title: Freedom Writers Director: Richard LaGravenese Scriptwriter: Richard LaGravenese Adapted from: The Freedom Writers Diary by Erin Gruwell Actors/Main characters: Hilary Swank-Erin Gruwell, Patrick Dempsey-Scott Casey, Scott Glenn-Steve Gruwell, Imelda Staunton-Margaret Campbell, April L. Hernandez-Eva Benitez, Jaclyn Ngan-Sindy, Jason Finn-Marcus, John Benjamin Hickey- Brian Gelsord, Plot Summary The movie â€Å"Freedom Writers† is based on aRead MoreFreedom Writers: Rhetorical Analysis Essay714 Words   |  3 PagesRhetorical Analysis: Freedom Writers The movie â€Å"Freedom Writers† is based on a true story. Hilary Swank as Erin Gruwell plays an inspirational teacher at Wilson High School. She is ready to take on the teaching world as she steps inside Wilson High School for her first day. Her class, varied with teenagers of different ethnic backgrounds, wants nothing more than to just get through the day. African Americans, Latinos, Asians, gang members, and much more are from poor neighborhoods, that all shareRead MoreFreedom Writers Analysis Paper786 Words   |  4 PagesFreedom Writers Analysis Over the years, I had heard many positive things said about this movie, but yet I had never taken the time to rent the movie and watch it myself. That is why I am so glad that this movie was our assignment. Freedom writers far exceeded my expectations. It truly was touching to see an adaptation of real live stories come to play. Watching a young woman, a teacher, who was completely out of her element and her comfort zone, grow to actually take an interest in these kids thatRead MoreAnalysis of Freedom Writers Essay1457 Words   |  6 PagesFreedom Writers- Theme Essay: The film Freedom Writers directed by Richard La Gravenese is an American film based on the story of a dedicated and idealistic teacher named Erin Gruwell, who inspires and teaches her class of belligerent students that there is hope for a life outside gang violence and death. Through unconventional teaching methods and devotion, Erin eventually teaches her pupils to appreciate and desire a proper education. The film itself inquiries into several concepts regardingRead MoreAnalysis Of Always Running And The Freedom Writers1439 Words   |  6 Pagesthat can sometimes lead us to severe consequences. In life, some choices we make can lead to tremendous consequences but they can also make us learn many important values that can help us throughout life. In the story of Always Running and The Freedom Writers, the main character faces many obstacles and has many tough and sometimes life changing choices to make, but the main characters learn from their choices and thus changing their next decision. In the story of Always Running, Luis who is theRead MoreRhetorical Analysis Of Freedom Writers1507 Words   |  7 PagesFreedom Writers is a movie based on the book The Freedom Writers Diary by teacher Erin Gruwell. The movie was directed by Richard LaGravenese and it was released in 2007. This movie discusses significant themes such as stereotyping and racial discrimination but most important the power of tolerance and understanding. The purpose of this movie is to promote the message that knowledge is power and in a world filled with disparities where hundreds of ethnic groups convey and interact humans are obligedRead MoreAnalysis Of The Movie Freedom Writers 1070 Words   |  5 PagesIntroduction ‘Freedom Writers’ is an American film, directed by Richard Granvense and based on a true story, which is dedicated and idealistic teacher Erin Gruwell. Mrs Gruwell inspires and teaches her class of belligerent and aggressive students that there are a positivity and hope for a life outside rather than gang violence and death. This is because students were divided into groups based on race, believed that they had no future and convinced that they had nothing to learn from other racesRead MoreFreedom Writers By Jung Ah Choi1010 Words   |  5 Pagesto be appropriate and efficient it has to relate in some way with the individual learner and how the individual demonstrates their learning process. â€Å"Reading Educational Philosophies in Freedom Writers† by Jung-Ah Choi, breaks down the different methods of teaching through the film Freedom Writers. Freedom Writers is a film based on a true story about a young teacher, Erin Gruwell, who faces racial barriers at an integrated high school in Long Beach California. The article displays the teaching methodsRead MoreTheme Analysis-Freedom Writers Diary791 Words   |  4 PagesBrought Together By Education Segregation has been a problem for quite some time, and it has trickled down from generation to generation, influencing younger and younger children every day. The problems the teenagers were facing in this book, The Freedom Writers Diary, were simply because of the segregation they were either taught or learned from the people around them. With the help of Ms. Gruwell, these teenagers became more open-minded about their peers and realized they needed an education. â€Å"YouRead MoreReaction Paper About the Movie the Reader1943 Words   |  8 PagesReaction Paper â€Å"The Freedom Writers† Literal level: Who: Erin Gruwell/Ms. G, Steve Gruwell, Scot Casey, Margaret Campbell, and the Freedom Writers What: The Freedom Writers (from the diaries of the students of Room 203) Where: Long beach and Los angeles, California When: 1992-1995 Interpretative level: Erin Gruwell is a young new excited teacher at one of the hardest school Woodrow Wilson High School in Long Beach, California. At first, Erin is having problem about her new

Chinese Ccot free essay sample

CAC Global trade patterns and domestic economic affairs was significant to the world. It affects how well the country is running and makes it under control. Global trade patterns and domestic economic affairs has changed and continued in China from 500 to 1750. As time progressed, trade patterns and the economy became sophisticated and prominent. Many people began to depend and on the economic issues. Currency has changed into silver which became a huge demand. Today, the global trade patterns and domestic economic affairs is the way due to history. Due to unfortunate circumstances involved changed in currency and a look of diffusion, Chinese economy shifted a bit. As China developed lost contact with foreign regions and faced different conflicts, they changed trade patterns and domestic affairs. From the time period of 500 to 1750, the change and continuity of the use of Silk Road/Indian Ocean basin, the use of currency, and exporting goods stimulated in the global trade patterns and domestic economic affairs. China has prospered from the Silk Road from a long period of time. Once the Silk Road was established, it led to establishments of other intricate network of trade routes. It was a trade route across land masses which connected East, South, and Western Asia. Trades on the Silk Road was a significant factor in the development of the great civilizations and it helped lay foundations for the modern world. Many goods such as jewelries, spices, medicines, textiles, and etc were traded. The Silk Road was a source of cultural and economic diffusion between Asian and European societies. The Silk Road was always active and it became very prominent in the later years. However, due to bubonic plague (Black Death) that traveled, many merchants died and got ill. Also, there were many bandits there who stole stuff so many people started to not use the road. Also, soon, the maritime trade got popular so many people got involved in the seafaring trade in the ocean. The Silk Road became less used and slowly lost fame. Due to the diffusion that went in and out, its disconnection had a significant fee on China. China lost contact with foreign people and lost relationship with the outside world of global ideas, cultures, and technology. China especially became limited in foreign affairs with the Europeans. Not many people traded and not many people came into the Silk Road so it led to the downfall of Chinas economy. The continuity that occurred was that the Silk Road was still being used. Even though all these disasters were occurring, people were still using the Silk Road to trade and to traveling. China depended and used the barter system for a long period of time. The barter system was trading item for an item and relying on interpersonal relationships for business. However, under the Ming dynasty, the currency was changed into silver. Silver was being imported and exported from many regions into China, where thriving domestic economy demanded increasing quantities of silver. The demand of silver was so high that Europeans exchanged silver for Chinese gold which they got more profit from in Japan. The Ming dynasty in China only accepted silver and nothing else. All taxes were to be paid with silver and traded with silver which led to the frantic demand of silver. The monopolization of silver led many people to get silver because only silver was accepted. However, the silver became overpriced since it was used as currency which led the Ming dynasty to not release silver in public. his lack of circulation had a huge impact on the economy which led to the downfall of the Ming dynasty. The change in currency damaged the Chinese economy so the currency changed. However, they used the currency to make the economy running by changing currencies. From the time period from 500 to 1750, China always has been manufacturing and producing their own needs. They imported goods they didnt have or things that couldnt be grown in their region but it wasnt common. Also, China always been exporting because of the amount of resources they had(huge). Their goods changed as time progressed and they imported/exported different goods. The Chinese people exported luxury times, slaves, jewelries, corn, and etc from different time periods. However, they were always exporting goods which circulated and stimulated the world economy today too. China supported silver during the Ming dynasty which became in very high demand. China exported large amount of goods of luxury items in order to pay for the silver. The continuity that occurred was always has using the Indian Ocean Basin for trade and exporting goods. It was their maritime trade route which has been continuous like the Silk Road. Chinese cargos constantly roamed around the Indian Ocean Basin. exporting and selling goods all over the world, stimulating the world economy. Chinas global trade patterns and domestic economic affairs changed and continued from 500 to 1750. China always had resources and goods available. China didnt have to import often because most of the products were often produced or grown in China. However, China exported tons of things under the Indian Ocean basin. Not only did they only use the Indian Ocean Basin but also the Silk Road. The Silk Road was an important factor in trading and in diffusion. However, due to diseases, maritime trade, and bandits, the Silk Road lost fame. The change of in currency into silver under the Ming dynasty also had a big impact on Chinas economy. These factors had a significant impact in the circulation of global ideas, traditions, and technology. These factors also led to the change and continuity of global trade patterns and domestic economic affairs from 500 to 1750.

Why Should We Ban Handguns In The United States Essays - Firearms

Why Should We Ban Handguns in the United States Recently in Michigan a six-year-old brought a handgun to school and shot a classmate and killed her. In 1990 there were 23,438 homicides in the United States, 9,923 due to handguns (418). This was one of the points that Nicholas Dixon brings up in his article, "Why Should We Ban Handguns in the United States". Dixon's argues for the ban of handguns in the United States, with the complete ban outweighing the negative effects. He does not argue for the outright ban of all guns, that is questioning the Second Amendment's right to bear arms. Arguing the complete ban of all guns would be impossible which is why he stays to strictly handguns. Dixon's line of reason is that if we reduce the handgun population, we will reduce the handgun violence, which will lower the number of violent crimes (418). Handguns were chosen to be the gun of choice to be banned because of its easiness to be concealed. The handguns were also chosen because they were seen to be the primary cause of the violent crimes in America. In an International comparison the U.S. had a significantly higher rate of homicide, than all countries included (419). This was attributed to the more lenient laws that are in the U.S. more than anywhere else. The comparison of Seattle to Vancouver is used to present this point more efficiently. The two cities are similar in almost all aspects, the only difference being that Canada has stricter gun laws (421). In short Dixon's argument is in order to reduce the number of violent crimes in the U.S., we need to decrease the number of handgun owners, which will lower handgun violence. Even though criminal offenders would still have guns, the amount available would be significantly decreased. The idea behind the ban is to lower the " overall ?pool' of guns" (422). Lowering the "pool" of guns I feel that this will not lead to a decrease in the amount of violent crimes in America. The violent crimes that were limited to handguns will then be transferred to crimes using other kinds of guns. The issue of other guns that are not "long guns" (418) is not taken into consideration. There are guns that are not considered handguns or "long guns", that can still be concealed. The semi-automatic guns that are on the street today are more violent than the handguns that are being discussed. That exclusion can represent a large percentage of the violent crimes that take place. Also taking into consideration the fact that criminals own guns illegally through theft is left out. If the law abiding citizens were able to still buy guns than who is to say that they would not buy them and sell them to the criminals? Dixon argues for a ban For those with prior convictions leaving the law-abiding gun owner undisturbed (422). This point also goes back to the idea of theft, which might create more household break-ins, increasing violence. The issue of gun control in America is a very strong issue for many different reasons. Dixon's hypothetical argument for the ban of handguns presents solutions to lower the amount of violent crimes. Although that lowering the population of handguns might decrease the number of violent crimes there is no way to know for certain that it will.

Stand essays

Stand essays "I never had any friends later on like the ones I had when I was twelve. Jesus, does anybody?" This quote from the movie Stand by Me, directed by Rob Reiner, was said by the character Gordie (Wil Wheaton), a boy who was just about to enter Junior High. When he typed up those words on his computer, years later, when he was looking back on those days, he was referring to his three friends Chris, Vern and Teddy. Chris (River Phoenix), was the leader of the little group, Gordie's best friend, and a very complex character. According to Freud, Chris would appear to be heavily influenced, but not controlled, by his 'superego'. Some evidence to support this theory would be the constant talk about some milk money that Chris had stolen, the belief that he was going nowhere, and how he supported his friends throughout the movie. As the movie progresses, it keeps informing us more and more about an incident when Chris had stolen milk money from some girl. "He stole the milk-money at school. He's a thief in my book." This accusation, coming out of the mouth of Gordie's father, was meant to be an insult about Gordie's choice in a best friend. Another way of looking at this quote would be to say that everyone knew that Chris stole the money. "Oh it is. No one even asked me if I took the milk money that time. I just got a three-day vacation." This quote, which expresses Chris' frustration, shows what he thought about the whole situation that he had been placed in. The truth was that everyone DID know that he had taken the money. While these two quotes don't say much, the next quote ties the whole story together. "Yeah. So let's just say that I stole the milk money but Old Lady Simons stole it back from me. Just suppose that I told the story. Me, Chris Chambers, kid brother of the Eyeball Chambers. You th ink that anybody would have believed it?" Chris had actually felt bad about stealing the money, but when he attempted to give it back,...

Accouting Speech or Presentation Example | Topics and Well Written Essays - 1000 words

Accouting - Speech or Presentation Example The formula to calculate dividend yield ratio is dividends per share divided by market price per share. Dividend yield ratio = $1.50 / $60 = 2.5%. d) The price-earnings ratio is an index that shows whether a stock is relatively cheap or expensive in relation to its earnings. The formula to calculate the price-earnings ratio is market price per share / EPS. Price-earnings ratio = 60 / 7.8 = 7.69. The book value per share is lower than the market value per share by $20. This figure does not necessarily reflect that the stocks of the company are selling at a bargain price. The book value per share reflects the amount that would be distributed to investors if all assets were sold at their balance sheet values after paying off the creditors. a) The current ratio is calculated dividing current assets by current debt. Current ratio = 1,120,000 / 600,000 = 1.87. The current ratio shows the ability of a company to pay off its current debt. A general rule for the current ratio is that if the ratio is above 1.0 it is good. The company is in a good position to pay off its current debt. The current ratio of the firm is below the industry average of 2.1. b) The quick acid ratio is another solvency metric. It is calculated similarly to current ratio with the exception that inventory is deducted from the numerator. Quick acid ratio = (1,120,000 – 610,000) / 600000 = 0.85. The quick acid ratio of the company is below the industry average of 1.2. e) The debt to equity ratio is a measure of the amount of assets being provided by creditors for each dollar of assets being provided by the stockholders (Garrison, et. al.). The ratio is calculated by the following formula: total liabilities / total equity. The purpose of the ratio analysis performed was to determine whether Stephens Company qualifies for a $500,000 loan. The broad profitability of the company is a little lower than the

Influence of culture and religion on the development of science Essay

Influence of culture and religion on the development of science - Essay Example Although we are often willing to acknowledge our debt to the ancient Greeks for giving us the basics of modern science, we are less likely to even be aware of our debt to Islam for preserving and building upon the knowledge the Greeks had developed. Far from working to suppress the development of science, it was the religion and general culture of the ancient Greeks and Muslims that helped shape the development of modern science. The religion of the ancient Greeks had a significant impact upon their view of how society should operate. With a Pantheon of Gods on high, each having his or her own specialty, participating in regular meetings to discuss what’s right and wrong with the world, it was not unusual for the Greeks to have a more diplomatic democratic society. They considered their gods to be very much like themselves but with greater powers to control the elements around them. It was important to keep them happy if one wanted good weather for productive crops or healthy livestock and a plague in the land could be an indication of a god unhappy with a particular ruler or policy. The people took their clues about what was necessary to keep the gods happy from the stories and legends that were told about them. When that wasn’t sufficient, they made it a habit to consult an oracle (Martin, 2006). This questioning of the mysteries eventually led to greater efforts to foretell the future and to guess the will of the gods. This required careful observations, study and training which eventually led to the development of scientific thought. By the end of the Greek period, many significant achievements had been made in science and philosophy. Greek thinkers had gained a view of a universe in which the world was round and participated in an intricate dance through the heavens with other bodies named after the gods they revered. Sophistication in mathematics led to the development of geometry which enabled the ancient Greeks to