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twilight last won the day on March 17 2014

twilight had the most liked content!

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    Nov 2013

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  1. I think each school has a different order for teaching. For my school, in the first year of IB we learned atomic structure, periodicity, bonding, energetics, kinetics and equilibrium. I think atomic structure and bonding are really important as they sort of set the foundation for the rest of the chapters. But none of them are too difficult topics actually.
  2. I did my EE in Physics. I think to do an EE in any of the sciences, you need to love lab work a lot because you have to design your experiments from scratch, which means lots of failures before you actually can conduct an experiment that allows you to collect data. Which also means that you need to be prepared to spend a lot of time in the lab. Some people say like for an English EE you just need to read the book and it's possible to write it in 2 weeks at home (sorry, not deriding or looking down on English EE, just brought it up as a contrast) but if you want to do well in a science EE, you
  3. I did not explicitly state my KQ (is that what they call KI in the new syllabus? Sorry I'm not too up to date) as a form of a question in my essay. It's probably due to the nature of the title I was answering. My title showed 2 sides of an issue, so in my introduction I just wrote something along the lines of agreeing with the statement, and then another sentence of however it is questionable if that is true. So I suppose this is another way one can write it if framing it as a question becomes jarring to the overall flow of your essay. You should make clear your main knowledge question (whet
  4. As I just said in another post, doing an EE related to aerodynamics is very very difficult to score well in due to the difficulty of controlling variables, which is backed by countless subject reports which you can ask your teacher to show you.
  5. I initially planned to do an EE on wind turbine as well but my teacher highly discouraged me from doing it because it deals with aerodynamics which is very difficult to control (controlling of variables is one key aspect of doing well in EE). It is also mentioned in the subject report year after year that aerodynamics is a very difficult field and students who venture into it don't usually score well. I am very interested in the field of energy and ended up doing an EE on solar cell. Experiment was very simple and variables controllable.
  6. Well the areas themselves are ok, but without knowing what exactly you want to do, it's a bit difficult to say whether they're fine. I think 3 AOK is rather a lot, I'm not sure if you can cover them in enough depth in 10 minutes. For the WOK, let them come naturally. As you prepare your presentation, I think you will find that you are able to bring in other WOK. If there is no need, 2 WOK is actually enough. Don't force it.
  7. I think it's a 6. IA is 24%, so you have 18%. My teacher always told us 20% and above is safe, so I assume 20% and above is a 7.
  8. It depends on the school whether you can check the marks of your subjects online though. My school made the setting in such a way that all we could see was the numerical grades for each subject. To get further information, we had to ask our IBC.
  9. Well what exactly do you want to do with those?
  10. I typed oil spill affect photosynthesis. I did it in regular google search. I don't use google scholar. Yes qualitative comparison is enough, that is if your experiment shows that the thicker the layer of oil (or whatever), the lower the photosynthesis rate, you just need to find one journal that also shows that the thicker the layer of oil (or whatever), the lower the photosynthesis rate. You don't need to find one where the data of the journal matches your numbers. It is almost impossible to exactly replicate the experiment conducted in the journal.
  11. What's an accelerating unit? As long as your investigation has a practical purpose, is doable with all the equipment you have, the variables can be controlled well, does not involve complicated math and can be written in full detail in 4000 words, it's usually fine.
  12. I can't believe you can't find any. I found plenty on just the 2nd page of google. You don't need to have an article that is exactly the same as your experiment. You don't necessarily have to find one which matches your data, just qualitative comparison is enough.
  13. For M11 TZ2, 1. Everywhere where y=0 on the y=f(x) graph, when you take the reciprocal, it becomes 1/0 which approaches infinity, so at x=0 and x=2, you have vertical asymptotes. 2. On the y=f(x) graph, there is horizontal asymptote at y=2. When you take the reciprocal, the horizontal asymptote becomes 1/2. On the y=f(x) graph, y approaches 2 as x approaches negative infinity. Therefore, when you take the reciprocal, y will approach 1/2 as x approaches negative infinity. As x approaches positive infinity 1/y will approach 0. I suppose you know how to get the other parts, like minimum becomes m
  14. I did the November session, so late March would be equivalent to my late September. At that time, we were having mock exams. For about 2 weeks. The last 2 weeks of September I think. In early October, we got back our papers and the teachers went through them. After that, it was basically self studying in school. I didn't have homework. It was up to us what we wanted to do. But since here entry to university is dependent on our final IB grades, my classmates were all very motivated to study. Some of them just slacked off in school though because they say they can't study in school. So yeah for
  15. My RQ was 'what is the relationship between temperature fluctuation a solar cell is subjected to and its change in energy conversion efficiency', something along those lines. You can search through ISEF database for ideas, or look at the tasks for young physicist tournament.
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