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Because a certain percentage of people (i.e. the top 5% or so) need to be kept at an A* percentile, then the next 10% or so of the population at an A. Basically, it is to keep the grading system fair and in balance, they don't want too many people on A*, but equally, they will raise the boundary if lots of people score low. It simply depends on how hard the test is.
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∙ 12y ago
Science AQA grade boundaries can change each year based on a variety of factors such as the difficulty of the exam paper, the performance of students overall, and the standardisation process used by the exam board to ensure fairness. Grade boundaries are adjusted to reflect these factors and ensure that students are fairly rewarded for their level of achievement.
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Describe how the chemical energy in porridge is converted to the gravitational potential energy in the lifted bar?
When consuming porridge, the chemical energy is converted into kinetic energy within the muscle cells through cellular respiration. As the person lifts the bar, their muscles contract, converting the kinetic energy to mechanical work against the force of gravity. This work done by the muscles results in an increase in the potential energy of the bar as it is lifted.
What should scientists do if new evidence was found which didnt relate the big bang theory?
Scientists should carefully analyze the new evidence and conduct further research to understand its implications. They should evaluate whether this evidence challenges the current understanding of the Big Bang theory or if it can be integrated into the theory with modifications. Open-mindedness, critical thinking, and rigorous testing are essential in assessing the impact of new evidence on scientific theories.
What happens to the steam after it has been used in a coal or oil-fired power station?
After being used in a coal or oil-fired power station, the steam is condensed back into water and returned to the boiler to be reheated and used again in the power generation process. This cycle helps to improve the overall efficiency of the power plant by conserving resources.
Grade boundaries in biology aqa gcse higher tier core science?
The grade boundaries for AQA GCSE Higher Tier Core Science vary each year and are not pre-determined. They are set after all the papers have been marked, taking into consideration the overall performance of students. You can find the grade boundaries on the AQA website once they are released.
When do AQA and Edexcel release grade boundaries for summer 2012 exams with the results day on 23rd August?
I don't know for sure, but people say Edexcel IGCSE grade boundaries for May 2012 series is being released on August 22nd .
What does AQA stand for?
AQA stands for Assessment and Qualifications Alliance in many universities and science communities. In business in stands for Analytical Quality Assurance, and in education it can stand for Any Question Answered.
What mark is required to get a C in foundation science?
Depends on the board AQA is between 24-32
Is the Edexcel GCSE Science course or AQA GCSE course more similar to the OCR National Science course?
edexel course is more similar :)
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