Your hypothesis needs to be one sentence that is easily testable. This section is also the part where you are marked for spelling, punctuation and grammar. Your report must make use of full scientific terminology in order to gain 8 marks. To get great marks in this section, you must plan your own method and justify your techniques and your equipment talk about precision and validity of results.
You must explain why you chose the range. Link this to your preliminary experiments that you did. I did a big range, then narrowed it down You must also complete a full and appropriate full risk assessment. To gain 8 marks, your risk assessment needs to be a separate appendix, which can be completed using a proforma.
These can be found all over the internet, but a good one can be found here. Collecting Data - C - range and quality of primary data. This is easy to get good marks in. You need to collect a good range of data, justifying your choice of range talk about your preliminary work and have a good amount of repeats. H ighlight your outliers and repeat them.
Analysis - A - revealing patterns in data Another easy section to get full marks in, if you take your time and concentrate. You need to draw a scatter graph of your average results, including a line of best fit. Depending on your results, this will either be a straight line with a ruler or a smooth curve. This will show you how reliable your data is, as the smaller the error bar, the closer together and more reliable your repeats are.
If you have put multiple sets of data onto one graph to show comparisons, you need to make sure that each data set is easily identified and there is a key to show which data is which. Evaluation - Ea - evaluation of apparatus and procedures.
For this section, you need to describe limitations caused by your techniques and equipment. Talk about what problems you might have encountered not necessarily ones that actually happened, just what might have happened and explain what you could do to improve your work the next time. Think about better, more precise equipment, like electronic timing devices, laser measures and super accurate pipettes.
You can also use the section to discuss alternative methods that are available that can provide the same results with more accuracy. You need to say, for each point, why they would be an improvement. This has to be done in detail to get the top marks. If it helps, you can add diagrams or photographs of the alternative equipment. You can also justify why your method is the best one and that there are no realistic ways to make it any better.
Evaluation - Eb - evaluation of primary data. Identify any outliers you had in your results. You need to talk about the general scatter of your results. Are they close together or far away? What dies this mean about the accuracy of your results? You also need to refer to your error bars. Small error bars mean increased reliability as all your repeats are close together. Why might your error bars for some points be big while others are small? What might have happened for this to be the result?
Think about all the errors that could have occurred and link this back to the limitations of your method and apparatus. You do not have to worry about copying at all. Our professional writers will make sure that your work is unique and that it will wow your professor with the professional wording and structure.
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Coursework - Full Investigation Your full investigation is worth 25% of your OCR 21st Century Science Additional Science mark. That is a big chunk of marks that you can obtain really easily if you pout the work in! May be coursework help will be great asset for you..!! Reply Delete.
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science qualifications which have been developed to help you inspire students of all abilities. FIRST CENTURY ADDITIONAL SCIENCE A OCR GCSE ADDITIONAL APPLIED SCIENCE GCSE ENVIRONMENTAL AND LAND-BASED The Twenty First Century Science suite comprises five specifications which share a similar approach. Jan 27, · Hi everyone. I just had a question for you- im in year 11 at the moment, and im doing additional science- ocr 21st century. Im doing my coursework at the moment, and the people doing the same course as me, or doing triple science with the same board, will .
21st Century Science OR Gateway Science B (OCR) The coursework are much similar now and most of the differences Twenty First Century Science, Coursework for GCSE Science Nuffield Foundation Nuffield Foundation Twenty First Century Science Assessment Coursework for GCSE Science. Nov 30, · This is a video intended to help students understand the marking criteria for the OCR 21st Century Science controlled assessment (investigation) tasks.