Six- The sixth question. Marking the question is an open answer to the extended question. These questions require longer answers than structured questions with fewer scores. It\'s wise to take some notes first to plan your answer. This will help you include all the key points. In order to get full marks, you need to: support the use of explanations of scientific knowledge and understanding, use appropriate scientific vocabulary, write down clearly and link ideas in a logical way, and maintain a continuous line of reasoning Tagging problems usually use the following command words: description means that you should recall facts, events, or processes accurately. You may need to explain what something looks like or what happened. Explanation means you need to make things clear, or state the reason for what happened. Comparison means that you need to describe the similarities and differences between things. If you are asked to compare X and Y, write down things about X and Y and make a comparison. Don\'t just write X or Y. Evaluation means that you must use the information provided or your own knowledge to consider evidence of support and opposition, or to identify strengths and weaknesses. Then you have to complete your answer with a conclusion, say, which is better and why is better. Six- Mark questions may be a comprehensive question that combines ideas for two or more topics. For example, a question about fertilizers could include ideas about the effects of a hard-bond substance, acid and alkali, chemical calculations, and on the environment. The answer shown here gives the mark point as the main point. You don\'t usually need to include all the scores in order to get six points, but you need to write them in sentences and logically link them clearly. Question 1- For making poly (ethene). Poly(ethene) Used to make plastic bags. The following table shows the data in life Cycle Assessment (LCA) A plastic bag and a paper bag. Plastic bag paper, bag raw material, oil or natural gas wood energy used in mj1. 51. 7 Mass solid waste is produced in CO2 of g1450 mass. 230. The fresh water volume used by Dm32554520 company said: \"life- Cycle Assessment shows that the use of plastic bags has less impact on the environment than the use of paper bags. Assess this statement Use your knowledge and the information in the form. [6 marks] This issue is the AQA material that AQA licenses to copy. Here are the vaild points that may be included in your answer. It is important that you do not point out your answer with bullets, but write your sentences in full. Paper bags are plastic bags made from renewable resources and are made from limited resources. Paper bags need more energy to make paper bags. Produce more waste paper bags. Photosynthesis in growing wooden paper bags requires more fresh water paper bags because of the non- Updatability is not important compared to other factors. . . Don\'t agree because other factors are more Cannot say because the data is uncertain/incomplete/inadequate The foundation of life- Cycle assessment evaluates the environmental impact of products such as smartphones. Some of the activities in the smartphone lifecycle are listed below. Extract oil from oil well extract plastic from oil extract copper from copper put all parts in a box watch video on mobile phone, separation of copper in the phone from some mobile phone components the stage of assessment in life Cycle Assessment. In your answer, give at least one example in the list above for each stage. [6 marks] This issue was written by the Bitesize consultant as a suggestion for the type of problem that may arise in the test paper. Here are the vaild points that may be included in your answer. It is important that you do not point out your answer with bullets, but write your sentences in full. First stage - Extraction and processing of raw materials. . . . . . For example, oil is extracted from an oil well. . . For example, get copper from copper mines. . . For example, making plastic from the second phase of oil Manufacturing and packaging. . . Put all the components together, for example. . . The third phase packs the phone in a box Use the product. . . Like watching videos on stage. Disposal at the end of service life. . . Take apart the phone, for example. . . Recovery of copper from some mobile phone parts problem 3- Higher problems compare the process of getting drinking water from the river with the process of treating wastewater. [6 marks] This issue was written by the Bitesize consultant as a suggestion for the type of problem that may arise in the test paper. Here are the vaild points that may be included in your answer. It is important that you do not point out your answer with bullets, but write your sentences in full. Both involve the separation of liquids from solids. . . . . . Filter the river in the filter bed. . . Wastewater removal of larger solid wastewater through the screen is precipitated, but the river usually does not anaerobic digestion of sludge in the wastewater, but the river does not carry out aerobic digestion of sewage in the wastewater but the river does not digest, the river is disinfected with chlorine, ozone or UV, but the wastewater is not. Question 4- Higher problems compare the advantages and disadvantages of obtaining copper from high grade ore using traditional methods of mining, moving and processing large quantities of rock. [6 marks] This issue was written by the Bitesize consultant as a suggestion for the type of problem that may arise in the test paper. Reveal the great advantages of traditional mining Copper gained the advantage of physical processing more quickly Compared with traditional mining, copper obtained from low-grade ore can cause environmental damage, and the disadvantages of traditional mining include digging a large number of rocks from the ground. . . . And trucks transporting copper mines have increased vehicle emissions. . . A large amount of waste stones must be disposed.