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Thursday, January 30, 2020

Energy drinks Essay Example for Free

Energy drinks Essay Using Energy Drinks in Daily Routine: What Is Energy drink? An energy drink Is a drink which contains drugs that Increases levels of nervous activity in the body, mainly caffeine, which is known for its mental or physical stimulation. Energy drinks may or may not be carbonated, and contain large amounts of caffeine and other stimulants drugs, and many also contain sugar, herbal extracts and amino acids. They are sub branches of the group of energy products, which Includes bars and gels. Energy drinks comes In many brands, qualities, flavors and varieties. Positive Points: 1 . Significant amount of Improvement In mental and cognitive performances as well as increased alertness. 2. Its been suggested that the reversal of some components present in caffeine helps in leaving a good effect on mood and ones performance. 3. After many tests it is observed that in young healthy adults an energy drink significantly increased upper body muscle strength. 4. Energy drinks help in improve memory. 5. Energy drinks Improve circulation of blood In your brain, ears and eyes. 6. Many energy drink companies use fruits and herbs that are healthy (for example: berries hey protect your body cells from oxidation). Negative points: With 30 to 50 percent of teens are taking energy drinks on daily basis, there are disadvantages of drinking these drinks, especially in children and teenagers, because they cannot safely consume as much caffeine as adults can. 1 Energy drinks are very high In sugar level, containing up to 35 grams of sugar per drink, which Is above the recommended amount of sugars for women of 25 grams per day and very close to the recommended daily limit of 37. Grams per men. Consuming a lot of deed sugars Increases your risk for obesity, because added sugars provide extra calories. 2. The caffeine in energy drinks increases the speed with which the alcohol is absorbed by a body making it more likely a person will stay awake long enough to consume more alcohol than a body would otherwise be able to. 3. The risks can be lessened by sticking to the recom mended Limits, which are listed on every drink, and by controlling the consumption of energy drinks by drinking one drink In a day. Extra ingredients , like amino acids, terrine, Guarani and ginseng, are added in such small mounts that they are not likely to give any beneficial health effects or cause any negative side effects. Suggestion: 1 . For many people, occasional drinks are flee, but try your best to limit yourself to about 500 millimeters a day. If youre consistently fatigued or rundown, however, figure a better and healthier way to boost your energy. Get good sleep, include yourself physical activity in your routine, and eat a healthy food. If these things dont help, consult your doctor. Sometimes fatigue is a sign medical condition, such as hypothyroidism or anemia. Or high blood pressure, consult your doctor if energy drinks may cause complications. Pregnant women and women who are breast-feeding may want to especially limit consumption of these beverages. 3. With the growing popularity of energy drinks on daily basis, most of the parents are concerned about how much caffeine their kids are taking. The American Academy of Pediatrics recommends that adolescents get no more than 100 milliards of caffeine a day. Younger children shouldnt drink caffeinated beverages on a regular basis.

Wednesday, January 22, 2020

Today’s Students are Tomorrow’s Future :: College Admissions Essays

Today’s Students are Tomorrow’s Future The least recognized, most important people in this world are the educators. They must work hard toward inventing a method to help each individual student â€Å"be all they can be!† Teachers must try to stimulate students to create a hunger for learning and to expand their success in life. Teachers should be obligated to the need for the student’s individuality. To be able to teach targeting to the students’ needs will make a difference not only in the student but also in the future of our society. Today’s students are tomorrow’s future. In many cases, it has become very complex to keep students interested in their education. So the teacher must be creative and find ways to keep pushing the student onward as well as upward. In order to devise the ultimate plan for educating students, a teacher must acknowledge that the â€Å"students† are what teaching is all about. The most important factor in the equation is unequivocally the STUDENT! All humans are different in some sort or fashion. But the fact still exists that we all have only this place to function in. So help by putting forth an effort to make it a better place for us all. I’m a firm believer that all students have some capacity to learn. It only takes the dedication and compassion of a teacher to ignite the wick and the light of the student starts to shine. Rousseau said that children are born of innocents, being neither good nor bad, and the surrounding will create the child. On average, students are with educators more hours than with their families. The hours we have with these students have to be utilized and get the best out of them. So as teachers, we must set an example of good morals and display the love of teaching and make learning a desirable trait. Learning should be a self-gratifying experience not a dreaded encounter. We all love to be achievers. Teachers and educators must put forth the desire to see their student’s progress. Like the old saying goes, you can lead a horse to water but you can’t make it drink but I believe you can make it thirsty along the way.

Monday, January 13, 2020

Providing Fresh Water to Arid Regions in the World Essay

An investigation on the feasibility of different techniques for providing fresh water to arid regions in the world. Located in a semi-arid zone, South Africa is one of the thirty driest countries in the world with limited water resources, which are unevenly distributed. In this country, five million people of the population have no access to safe drinking water and nearly fifteen million lack basic sanitation. The lack of drinking water is a serious problem, since there are more than 1.6 million children under five years whom die every year worldwide.(the water project 2012). This report will assess the feasibility of different techniques for providing drinkable water to South Africa. It will also present different options suitable for arid regions, looking to improve their water resources comparing them, and then concluding by pointing out which is the most feasible and efficient technique. BACKGROUND From apartheid to epidemics such as aids or tuberculosis, South Africa has experienced several disasters. Now it has to face a new crisis: an abundance of drinkable water. In fact there is several reasons to explain this water crisis. Firstly, the climate change has affected the water supply as rain has become increasingly scarce. For instance â€Å"in Durban the dams are 20 per cent lower than at the start of 2010†. (the water projet) Moreover, the problem of pollution rages; in fact, mining plants in South Africa throw all their toxic and radioactive waste in African rivers. They dump highly toxic substances such as mercury, arsenic and uranium in the river, as it is toxic and reacts violently with water, once in it the water will be contaminated. The water will therefore have a highly acidic pH of 2.2 (pH level close to that of a lemon). For instance, Wonderfontein Spruit River, one of the largest rivers in South Africa is extremely polluted due to the 50 tons of uranium mi ning plants have dumped into the river. Likewise, Lake Robinson, a fishing lake, has today a uranium concentration of 16mg/L due to toxic waste; (the guardian). consequently more than 1.6 million people die each year.(waterwise2012) DIFFERENT SOLUTIONS: 1. Setting up Tidal power plants to purify water which could be installed in the Atlantic Ocean, located next to South Africa; these tidal power plants derive their energy from the force of the tide. With this process, when the water is raised energy is produced, the water could then be filtered through a filtering system (reverse osmosis). Through this, these plants will not only produce energy from a renewable energy source, but also filter the polluted water. (inventors.about.2012) 2. Excavation of a groundwater is another solution to provide a fresh water supply. This resource, which makes up 15 per cent of the drinkable water in South Africa, represents an important source of water. It can provide water to more than 400 cities (water.dwa.gov). In over 90% of the country, it occurs in hard rocks, which have no pore spaces, and it is powered by the infiltration of rainwater (Anthonyturton). This is acquired by drilling a bore, which is then fitted with a pipe into the aquifer, pum ping the water to the surface (gwd, 2012). In addition, it is high quality water, as a layer of clay that acts as a filter protects it. 3. Measuring and monitoring water quality†¨is also a great way to make sure the water in the country are usable. It helps limit and suppress the release of toxic and radioactive waste into the rivers of Africa. The government must put in place measures prohibiting any discharge that may contaminate the water. To achieve this, the government must find an alternative solution for the toxic waste dumped into the rivers such as collection center set up in order to collect the waste and possibly even recycle the waste. If this is done, then many of the rivers and lakes in South Africa will be clean again and could become a clean water resource once again. COMPARISON AND VIABILITY OF THE DIFFERENT SOLUTIONS 1. Setting up power plants is another solution that could be used. The tidal power plants provide an almost inexhaustible amount of water, thus sufficient not only for the entire population but also for its agricultural and industrial sectors. Moreover, since these plants use renewable energy and non-polluting, it reduces the concentration of pollution added to the water. However, the implementation of these tidal power plants is expensive and therefore need investment from the government and organizations, which might not be able to provide (Elmelech 2006). However, the invention of new â€Å"nanotechnology† can reduce expenditures and promote the installment. (Polyzou 2010) 2. Excavation of groundwater: The groundwater does not pollute as easily as other water sources. Indeed, according to Carr and Neary it may take years to be able to pollute the reserve’s groundwater. However, the ground has disadvantages as the amount of water, which is not renewable. In fact, the majority of groundwater has been charged over the previous periods, in different climates. As fossil fuels were created under conditions that have not existed for a long time, this â€Å"freshwater fossil† is considered non-renewable. Thus, once aquifers have declined they will cease to be a resource because they will not charge in the future. (groundwater.org) 3. Monitoring or measuring water quality develop†¨enacted anti-pollution measures is a solution that doesn’t require great expenditures. Indeed, water already exists and is eager not to be polluted, to be drunk. But in a developing country, like South Africa, the corruption, which is everywhere, prevents the compliance with these measures. CONLUSION To conclude, the water crisis, which rages in South Africa, is due to human activities. To cope, the country has several alternatives such as set up power plants, excavation of a groundwater or monitoring or measuring water quality. All these options, which have the same aim: to provide fresh water, present advantages but also inconveniences. In one hand, the reserve of groundwater may be out of stock due to the growth of population and the insufficiency of water. However, on other hand, the installment of tidal power plants can be a surprisingly costly project. The best solution seems to implement protocol against pollution of fresh water, as it’s effective, practical, and not an expensive way. REFERENCES: 1. The Water Project.(2012).Water In Crisis – Spotlight South Africa.[online] Available at: < http://thewaterproject.org/water-in-crisis-south-africa.php> [Accessed 24 November 2012]. 2. Waterwise.(2012).Water Wise – Causes of Water Pollution. [online] Available at: [Accessed 20 November 2012]. 3. gwd. (2012). Ground water division of GSSA. [Online] Available at: < http://www.environment.act.gov.au/__data/assets/pdf_file/0017/153332/UMCCC_Groundwater_Factsheet.pdf> . [Accessed 23 November 2012]. 4. Bellis.M. How Tidal Power Plants Work. [online] Available at: [Accessed 11 November 2012]. 5. Woodford.A and Rosewarne.P. (2012). HOW MUCH GROUNDWATER DOES SOUTH AFRICA HAVE?. [Online] Available at: < http://www.anthonyturton.com/admin/my_ documents/my_files/SRK_Woodfood_How_much_Groundwater_does_SA_have.pdf > [Accessed 16 November 2012]. 6. Polyzou.E. Willigness to pay for drinking water quality improvement and the the influence of social capitall. [Online] Available at: < http://www.liv.ac.uk/libraby/e-books.htlm > [Accessed 12 November 2012]. 7. Elimelech.M.(2005). The global challenge for adequate and safe water. [Online] Available at: < [Accessed 10 November 2012]. 8. Carr,G. and Neary.J (2008).water quality for ecosystem and human health. [Online] Available at: < http://www.unep.org/gemswater/Portals/24154/publications/pdfs/water_quality_human_health.pdf > [Accessed 18 November 2012]. 9. Groundwater.org.what is the groundwater?. [Online] Available at: < http://www.groundwater.org/kc/whatis.html> [Accessed 17 November 2012]. 10. Dwa.gov. Background of the NORAD Assisted Programme on the Sustainable Development of Groundwater Sources under the Community Water and Sanitation Programme in South Africa. [Online] Available at: < http://www.dwa.gov.za/Groundwater/norad.aspx> [Accessed 17 November 2012].

Sunday, January 5, 2020

5th Grade Science Fair Projects

By the 5th grade, students are expected to shoulder more responsibility in designing in doing a science fair project. There will still be a lot of parent and teacher help, but you want a straightforward project that ideally takes no longer than a week or two to complete. The ideal project is one the student can do pretty much by himself or herself, with guidance from adults as needed. 5th Grade Science Fair Project Ideas What household chemicals repel insects? Pick one particular type, common to your area, such as flies, ants, or roaches and test herbs, spice, etc. to see if you can come up with a non-toxic way to keep bugs away.Make a model tornado or vortex. You can use two bottles taped together or can make a cool tornado using water and vegetable oil. For the project, explain how the vortex works.Can people taste the difference between drinks sweetened with Stevia (a natural non-caloric  sweetener) and sugar? Which do they prefer?Are there any dyes you can add to water living plants that change the color of their flowers? Hint: Some modern orchids are tinted blue using dyes, so its possible.Do people have the same sensitivity to smell? Place people at one end of a room. Have another person open a scent, such as lemon oil or vinegar. Have your test subjects write down what they smell and what time they smelled it. Is the time the same for different scents? Does it matter whether the test subject was male or female?Use the streak test to try to identify different mineral samples. What other tests might you try to confirm your results?Does storage temperature affect popcorn popping? Store popcorn in the freezer, refrigerator, at room temperature, and in a heated location. Pop the same amount of each sample. Count how many unpopped kernels remain. Can you explain the results?Does food cooked in the microwave cool at the same rate as food cooked in the oven or on the stove top? Heat foods to the same temperature. Use a thermometer to measure the temperature at set times. Explain your results.Can you sip the same amount of liquid through two straws at once as one straw? What about 3 straws?Collect a group of different substances. Rank the materials according to best to worse heat conductors (or insulators). See if you can explain your findings.Does the color of a light affect how bright it appears in fog? in water?For your project, explain how traffic lights work. What is the r eason for the delay between when a light turns yellow and then turns red? How many cars are needed to trip a turn arrow? If youre examining a particular light, does its behavior change according to the time of day?Where is the best place to store apples? Where is the best place to store bananas? Are they the same?Does the temperature of a magnet affect its magnetic field lines? You can trace the magnetic field lines of a magnet by putting iron filings on a sheet of paper over the magnet.What brand of battery lasts the longest?Make ice cubes starting with different temperatures of water. Does the starting temperature of water affect how long it takes to freeze?Make a homemade sundial and explain how it works.