Chemistry Study Guide

Chemistry Study GuideThe Chemistry lesson that you should be undertaking in your A-Levels is one of the key factors that determines whether you will pass the exam. It has been seen in the past that students from India are among the best in scoring high marks and therefore gaining admission to the top universities in the world. This makes them the ideal candidates for taking the final exams.It is necessary to choose a good quality lessons that would provide a good understanding of the topics that you are going to study. There are many colleges that provide excellent chemistry lessons online. However, the question arises whether it is possible to access all the information that is required in the material.As a matter of fact, you should always make sure that you have a good plan so that you can study like a professional. After all, you will be spending a lot of time in the classroom. You should take this into consideration while choosing the right lessons and online chemistry course.Th e questions that you will find on your Chemistry study guide are those that would let you practice your learning skills and knowledge. For example, the questions that you will encounter during the Biology test will only help you to become familiar with the concepts related to the biological aspects of the subject. These kind of questions are absolutely essential as they could guide you towards the knowledge that you need for passing the exam.An online course will not provide you with answers to all the questions that you will encounter during the examination. However, some of the study guides may have answered some of the questions that you would encounter during the chemistry exam. A good chemistry guide should have the answer to all the questions that would not leave you confused.The content of the good chemistry guide would be made of formulas and equations that would help you learn all the concepts of the subject. These formulas and equations would provide you with the basis for solving all the equations and formulae of the subject.All these topics could be found in the online chemistry study guides. In fact, if you select a good quality chemistry study guide, you will find that your success as a student depends upon how well you understood all the aspects of the subject. So, it is important to look for the online courses that provide good chemistry lessons and make sure that you would know all the aspects of the subject.

The Simple Secret to Foreign Language Fluency

The Simple Secret to Foreign Language Fluency Whats the hardest part of learning languages?They feel arbitrary.They have their own logic, but it takes trial and error to figure them out.What if there was a shortcut?A way to learn from your mistakes before making them?Heres a simple but useful tip.Learn example sentences rather than  memorizing words individually and out of context.  In other words, sentence mine.What is sentence mining?Google “sentence mining” and you’ll find a community of hardcore sentence miners who get into passionate debates.Sentence mining is learning languages by collecting, saving, and reviewing sentences.The more traditional approach is to memorize long lists of vocab words individually.Why does sentence mining work?Sentence mining works for several reasons.First, it helps you create mental associations with what you already know. The sentences give you a place in your brain where you can attach the new vocabulary.Second, it exposes you to the vocabulary in different contexts. This accelerates you r learning in the same way that you would get to know a person faster if you see them in multiple social settings.Third, vocabulary is nuanced, like people. Just like you dont truly know someone by knowing their name, you dont truly know a word just by knowing its definition.Sentence mining lets you master a word more quickly.How do I do sentence mining?There are 2 ways.The Traditional WayFirst, Ill tell you the traditional, painful way:Find a resource that can provide a steady supply of accurate sentences.Select simple sentences that demonstrate the word’s meaning.Save those sentences in your notebook or flashcards.Periodically review.As you can imagine, the traditional way is a test of your discipline and organizational skills.If you enjoy challenges, have an iron will, and are very meticulous, go with the traditional way.If this sounds like too much work for you, theres an easier way. The FluentU WayTheres a new, painless, and even delightfully fun way: FluentU.With FluentU, youre able to see multiple examples of any word.These examples are all high quality.They either come from authentic sources like music videos, movie trailers, news and inspiring talksor theyre created from scratch by native speakers, and written in a simple way that still clearly demonstrates how the word is used.The words even come with representative images.Take a look at the FluentU app to see what I mean:FluentU lets you learn any video through a fun, multimedia quiz. And at any moment in the quiz, you can swipe left or write to see more examples for the word that youre being quizzed on.Download the FluentU iPhone  or Android app for free!

?? 5 Inspirational Young People You Should Keep an Eye On

?? 5 Inspirational Young People You Should Keep an Eye On 5 Inspirational Young People You Should Keep an Eye On At Tutorful, we firmly believe that youngsters get a bad rep. They’re often unfairly labelled as lazy or selfish.This International Youth Day, we decided to prove those stereotypes wrong.Here are 5 amazingly inspirational young people who will make you sit up and take notice.1) Greta Thunberg (16 Years Old) By European Parliament from EU - Greta Thunberg at the Parliament, CC BY 2.0Greta is a Swedish activist. At the tender age of 15, she led a protest outside the Swedish parliament building about the impending dangers of climate change.The support for this protest grew incredibly quickly, resulting in over 1.4 million students protesting around the world in March this year.Greta has garnered several accolades in just one year. She’s been nominated for the Nobel Peace Prize, featured on the cover of Time Magazine, and granted the Ambassador of Conscience Award by Amnesty International.She’s had a real-world impact too. The EU boss, Jean-Claude Juncker, announced a new plan to spend hundreds of billions of Euros in an attempt to combat climate change.Greta is proof that young people care for far more than themselves, and that they have the ability to achieve anything, no matter their age.2) Cori “Coco” Gauff (15 Years Old) By si.robi - CC BY-SA 2.0Coco is an American tennis player. She recently made sporting headlines when she received a wildcard entry to the Wimbledon tennis championships. The world watched as Coco defeated her heroine, Venus Williams, in the first round. In fact, the 15 year old made it all the way to Round 4.Coco is the youngest ever player to reach the main draw at Wimbledon, and she became such an inspiration that her third round match was played on Centre Court.The media and Coco’s fellow players congratulated her on her performance and maturity throughout the tournament.Coco has likely inspired hundreds of kids to pick up a tennis racket, and she’s showing the world that young people can be equally as determined and mature as their elders.3) Rishab Jain (14 Years Old) By Andy King for Discovery EducationRishab is an American researcher, scientist, and inventor. Oh, and he’s only 14. Last year, he created an AI algorithm that will help doctors accurately treat the pancreas in cancer patients.Previously, the pancreas has been difficult to pinpoint. This is due to other organs blocking the way, and the fact that breathing can often move it out of position.Rishab’s algorithm will help track the location of the pancreas, so that radiation can be applied exclusively to it. This lessens the danger of killing perfectly healthy cells that are nearby, and improves the efficiency of the treatment.The project, for which Rishab was awarded a $25,000 prize, was mainly inspired by a family friend who died of cancer.Rishab is a stark reminder that the youth of today are the innovators of tomorrow, and that they have the creativity and knowledge to make the world a better place.4) Marley Dias (14 Years Old) By narratively.comMarley is an American activist and feminist. She first ventured into the limelight aged just 11, when she created the #1000BlackGirlBooks campaign.After complaining to her mother that the books she read were always about white boys, she became inspired to do something about it.Her campaign is a book drive that originally aimed to collect books featuring black, female protagonists. In just a few months, she had collected 9,000 books, and raised a lot of discussion about the lack of diversity in children’s literature.Since then, Marley has written and published her own book, and is currently the youngest editor at elle.com.Marley has shown the world that young people not only care about the injustices of the world, but have the strength and willpower to do something about it.5) David Hogg (19 Years Old) By Barry Stock - CC BY-SA 2.0David Hogg is a writer and activist from the USA. He was enjoying a normal day at schoolwhen a gunman entered and killed several of his fellow students. During the shooting, Hogg used his TV production experience to interview other students, and update the outside world.Fortunately, David survived the attack. He then went on to co-found Never Again MSD, a gun control advocacy group, with 19 other students.Along with his co-founders, David helped sign up 50,000 young people for the midterm elections, and frequently campaigns for tighter restrictions on gun sales in the USA.He also co-wrote a book with his sister that made the New York Times Bestseller list. All of the proceeds from the book are being given to charity.David is a prime example of how young people are able to turn the most harrowing of experiences into something positive that helps to make the world a better place.They Are the FutureThe kids of today will be making the world of tomorrow. In f act, it seems they’ve already started.The young people in this article are just 5 of thousands others like them. They’re creative, intelligent, empathic, curious, and determined. They’ve learnt from the mistakes that previous generations have made. All they want to do is make the world a better place.Maybe it’s about time we let them...

Acing the Integrated Reasoning Section of the GMAT

Acing the Integrated Reasoning Section of the GMAT Think of the Integrated Reasoning Section of the GMAT as a test to evaluate the applied version of the same skills the GMAT is designed to test overall. The GMAT is intended to assess your competence in analysis, writing, and quantitative reasoning as well as your reading and writing skills. In this section, the key word is reasoning. While the IR includes a basic on-screen calculator, if you possess a talent for estimation and identification of rational responses, you will likely save time and may not even need the calculator. All participants will receive questions of increasing difficulty. There are four question types: tabular analysis, graphical analysis, two-part analysis and multi-source reasoning. While you likely aren't thrilled about adding additional study on top of your prep for the quant and verbal portions of the GMAT, a couple of straightforward methods can give you peace of mind when confronting the Integrated Reasoning section. Get to know graphs, because they abound in IR, particularly bubble charts or scatter plots. They are there to test your ability to extract information from a data set by analysis. Reviewing graphs outside of the typical practice materials, like those found in The Economist, can make you feel more at ease with the various symbols and text. Interspersing the standard data sets with graphs like these can keep your prep work from becoming too tedious. Give the multi-source reasoning questions a close read. While this may seem self-evident, many of us rely on skimming to deal with the volume of text in our lives. If you concentrate enough to nail each piece of information in the exercise on the first read, you save yourself the time spent glancing back and forth from the original text as you answer the questions. This is important when you consider that the entire IR has only 30 allocated minutes. While practicing, evaluate both your timing and how much information you are able to absorb. Don't fear the spreadsheet: there are questions in the Integrated Reasoning section that measure how well you can extract information from a spreadsheet. As long as you have beginner-level familiarity with Excel, the tasks that you have to execute are nowhere near as complex as you might anticipate. It's mostly a matter of being comfortable with the sorting function. Master that, and you will likely be fine. The two-part analysis section is similar to Critical Reasoning and has shorter, clearer prompts than the multi-source reasoning section and spreadsheets in table analysis. However, since the two-part analysis questions comprise one-third of the test, budget your time accordingly. Run through practice sets of twelve questions in one-half hour: four multi-source reasoning, two table analysis, two graphic analysis and four two-part analysis. Like the reading comprehension section, the time-consuming part of multi-part reasoning is reading the material. There is more time on average than in the other sections of the GMAT, but there is not as much time to catch up if you fall behind. Do not be afraid to guess - it is better to include a little informed guesswork in your answers than to run out of time before the final question. With some study and practice, you can acquire the skills needed to meet this challenging test head-on.

Eat Your Sunscreen Alternative Sun Protection

Eat Your Sunscreen Alternative Sun Protection Photo courtesy of Pixabay Despite the common advice to lather on the sunscreen before going outside (or to just avoid going outdoors altogether), instances of skin cancer are on the rise, and the number isnt minuscule. Cases of melanoma, the deadliest form of skin cancer, are steadily climbing at 3.1 percent annually, while other forms are jointing the race at a quick 4.2 percent. In fact, skin cancer rates have exploded upward by 77 percent between 1992 and 2006an ironic increase, when we look at the constant push for more sunscreen and less sun exposure. What could possibly be the cause of this increase, despite our ever-increasing safety measures against the sun? It seems individuals have long since forgotten that the sun brings life to our planet; it feeds our plants, warms our bodies and synthesizes vitamin D (which in turn can relieve fibromyalgia pain, treat skin diseases such as psoriasis, promote wound healing, and regulate body temperature) among a host of other necessary functions. According to Mercola.com,  Solar ultraviolet (UV) radiation has been used since ancient times to treat various diseases. This has a scientific background in the fact that a large number of molecules (chromophores) in different layers of the skin interacts with and absorbs UV. To reiterate this idea, the rays from the sun were also used as a standard treatment for tuberculosis before the advent of antibiotics. Surely this cant be the sun were talking about? Its downright dangerous, is a common claim among religious sunscreen-wearers. However, there is a problem with this reasoning, and it lies behind its beneficiaries: sunscreen companies. Sunscreen may be touted as a miracle must-have, yet the ingredients found in nearly all commercial brands could rival the damaging effects of a solar flare on our skin. According to Arthur W. Perry, MD, FACS: Chemical sunscreens don’t sit on the surface of the skin â€" they soak into it and quickly find their way into the bloodstream. They scatter all over the body without being detoxified by the liver and can be detected in blood, urine, and breast milk for up to two days after a single application. That would be just fine if they were uniformly safe â€" but they’re not. Perry reveals that 9 of the 15 chemical sunscreens are considered endocrine disrupters. Endocrine disrupters are chemicals that interfere with hormones, namely estrogen, progesterone, testosterone and thyroid hormones. These chemicals found in sunscreens can cause abnormal development of fetuses and growing children, early puberty and premature breast development in girls, and small and undescended testicles in boys, and contribute to development of breast and ovarian cancers in women and prostate cancers in men. Common singular ingredients found in commercial brands can have specific effects as well. Retinyl Palmitate showed in a 2009 study released by the National Toxicology Program to speed the development of skin tumors and lesions when exposed to sunlight (and by speed we mean a 21 percent faster development of lesions and tumors). In addition, oxybenzone acts as  a hormone disrupter, while the chemical fragrances that makes sunscreen smell like the beach have been linked to organ toxicity and immunotoxicity by the Environmental Working Group  (EWG). To be clear, brands using the harmful ingredients listed above include  Aveeno, Banana Boat, Coppertone Sport, Coppertone Water Babies, Bull Frog, Neutrogena, Store brands (CVS, Rite Aid, Walgreens), and Hawaiian Tropic, among others, and have been rated as dangerous by the EWG. So what should we do before spending a day at the beach or on a boat without sunscreen? Luckily, there are natural alternatives to sun protection that dont involve slathering on sunscreenones that work with our bodies rather than against them  (and they taste good, too). Tomatoes Tomatoes are bursting with the antioxidant  lycopene, which has shown to protect against too much UV radiation. In fact, according to a study  published in the  Journal of British Dermatology, 20 healthy women who ate a quarter cup of tomato paste in olive oil every day for three months were more protected against sunburn than those who consumed olive oil alone. Enjoy a cup-full for maximum benefits. Almonds and Other Seeds Almonds and sunflower seeds contain hefty doses of vitamin E, another powerful antioxidant that acts as a skin-protector. Be sure to add a few sprinkles to salads or smoothies in your daily diet. Apples Specifically, the skins of apples; a 2007 study at Cornell University showed the red skin of Red Delicious apples contains  triterpenoids, which blocked or killed cancer cells in lab studies. Green Tea Catechin compounds in green tea protect against solar radiation, while the its tannic acid content can be used to soothe sunburns. Drink two cups a day as a preventative or apply two teabags soaked in cold water to a sunburned area. Pomegranate Research at the Department of Nutrition and Food Science at Texas AM University showed that the ellagic acid found in pomegranates helps reduce UVA and UVA-induced cell damage. Organic Sunscreen The sunscreens listed below are free  of  Parabens, Phthalates, PEG’s (polyethylene glycols), Propylene Glycol, Phenoxyethanol, SLS/SLES, Oxybenzone, and a host of other chemicals found in popular sunscreens, and instead use mineral sun-protectants such as Zinc Oxide. Badger All-Natural Sunscreens ECO FORMULA SPF 30+ by Raw Elements Poofy Naturals The Sunscreen Other options include wearing hats or clothing as a barrier, or finding intermittent shade if you plan on being outdoors for long periods of time. Remember, however, that it takes roughly fifteen minutes of direct sun exposure to synthesize the required daily amount of vitamin D (one of the leading vitamin deficiencies in the U.S.), so it would be prudent to go outdoors for short periods without sunscreen in order to reap the benefits. Without the sun, we would be without nourishment; without a planet capable of supporting life. For thousands of years humans have bathed in the suns rays, worked under its light and hailed its healing powers. Knowing this, what can we say is more likely to cause harm to humans? A life-giving source that has sustained life for millions of years or an unnatural bottled chemical concoction that exacerbates conditions previously rare before their advent?

The Chemistry Answer Key

The Chemistry Answer KeyDid you know that the Addison Wesley Chemistry Answer Key is available in multiple languages? In fact, it can be accessed and read in numerous other languages as well, including Chinese, Korean, Arabic, Hindi, Hebrew, Greek, and more. So if you have a credit card or PayPal account, you can now do some extra research on this impressive website.The question asked is a common one, so I am sure that most people are curious about this science-related website. If so, we will get some practical information, along with some other helpful tips.An important thing to remember is that the Chemistry Answer Key is not a one-size-fits-all thing. While it can be accessed by everyone, it is very important that everyone has the same account. You must also register for at least three of the three different accounts. This is because there are different levels of membership and different services that are offered.For example, if you have registered for a level two membership, you will be able to look up a past question from the previous site. In addition, you will be able to access previous websites, as well as see the answers to other questions that have been posted. You will also be able to access other sites, which are dedicated to answering common chemistry questions.The Addison Wesley website will also help you set up your own community profile, which you can use to communicate with other users. You can also leave comments on the other sites, and when you log in you will see your comment appear on their home page. This will allow you to interact with other members as well as get more information about what's going on at the Addison Wesley website.If you have not noticed already, one of the best parts of the Addison Wesley website is the research section. In fact, they are responsible for providing students the answers to a large variety of common questions. It should come as no surprise that they are also very well-respected in the scientific community. If you need an accurate answer to your question, the Addison Wesley website is just the answer you are looking for.In summary, there are a number of useful websites that you can visit to find the answers to your questions, and an exciting website called the Addison Wesley website. If you're wondering about the chemistry answer key, be sure to visit their website at AddisonWesley.com. It has a great forum where you can discuss common problems and discuss what you want to do to increase your knowledge about science.

Online Organic Chemistry Tutors - Who Are They?

Online Organic Chemistry Tutors - Who Are They?Online chemistry tutors offer much greater choice than traditional, live classes in chemistry, which they provide, for instance, by using videos or providing additional tests and quizzes. This can be achieved by choosing a tutoring service which allows you to view their course material from a computer and even offers you access to the videos that are on their website, or through e-mail or other media.An online chemistry tutor is concerned with the student's success; they look for opportunities to develop their learning skills. Because of the computer technologies they use, their role in the learning process greatly improves the speed and accuracy of the class.When you select an online chemistry tutor, they will send you video clips and questions, enabling you to study at your own pace. The materials that are given are thorough, and the internet connection speeds make it possible for you to study while you travel, during your lunch breaks , or whenever you have the time.A lesson plan developed for the online chemistry tutor enables you to get practice at this, as well as earning the necessary credits. All of the material is now available for you to study in a program that you can choose from.In the tutoring sessions you are given, you are encouraged to ask questions, so that you can practice your research skills and theory. You will also be able to practice experiments to improve your ability to understand chemical reactions.Online organic chemistry tutors not only teach through videos and interactivity but also provide you with help and assistance to ensure that you meet all the requirements for your grade. They will help you create a good grade guidebook, help you find the best chemistry teacher, and match you up with other students who have the same interests.The organic chemistry tutor will not only teach you about chemistry but it will assist you in understanding what you can do and how to plan your future cours es. This will be in addition to the online lab, tutoring, and workshops that they offer you.