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ABKor752 last won the day on October 5

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About ABKor752

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    May 2018
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  1. Our school is finalizing our written assignments for the IB, and we had written our reflective statements reflecting on one of the interactive orals seen that semester. However, one teacher has just notified us that we messed up, and we were supposed to reflect on TWO IO's in the reflective statement. I had not seen or heard of this anywhere, and there's another teacher at our school who doesn't think that's true. Regardless, the former teacher still holds his view that it's supposed to be reflecting on two. I really don't want to redo mine, since I only reflected on one. I'm at 389 words and can't add much more (400 max). Can anyone help clarify this issue? Thanks in advance!
  2. My IA topic was enthalpy change of solution, which, although it does not focus on chemical processes between two "chemicals", my teacher said that if I explained it from a molecular perspective then it works. Now, enthalpy change of solution is a byproduct of lattice enthalpy and enthalpy of hydration. I was testing the enthalpy change of solution of transition metals going across the periodic table. The issue is that both lattice enthalpy and enthalpy of hydration generally increase in magnitude across the periodic table, so mathematically, the enthalpy change of solution balances out, resulting in no clear trend. I had not known this before, but I explained in my IA the trends of lattice enthalpy and enthalpy of hydration and I explained how this resulted in no trend. I spent months trying to find literature values but finally find them, and those had no trend, either. By mini-trends, referring to my investigation, the resulting enthalpy change of solution literature values for my five salts (going across the periodic table) were -65, -64, -65, -31, -55, or something like that. I talked about why -31 was so different than the other values (this is a mini-trend because it doesn't encompass all the data into a single regression equation or something like that), and explained why it then jumped back down to -55. I know that the pH of water changes, albeit only very slightly, with temperature, (between something like 6.8 and 7.2), but because its concentration of H+ and OH- are still equivalent, it is still considered neutral. In your titration curves, the center of the vertical line (equivalence point) is the pH, so a change in temperature may only have had a miniscule effect on the amount of NaOH needed to titrate a barely-changed-pH buffer solution. You could discuss how there might technically need to be a small increase/decrease in the amount of NaOH but because of random and systematic errors this is too negligible, thus resulting in a stagnant trend. That's the very basic science behind it and I probably got some facts wrong, but you get the idea. Talk about what should have happened, how that still results in a small trend, why this wasn't exactly seen in the experiment, etc. Hope this helps!
  3. I had the same problem. My data had virtually no trend but my teacher said that if I could explain why this was the case with deep analysis, then I could show my scientific knowledge even without a clear trend. I wouldn't worry. Even if you don't have formal research or literature values, just explain the lack of a trend using what you know about the topic, and possibly explain mini-trends (i.e. an increase from one setting to another, followed by a more dramatic decrease, etc.)
  4. Those are minimums, right? What are the maximums?
  5. Oh boy, you don't know what it was like reading The Things They Carried by Tim O'Brien. Honestly, a great book about the Vietnam War. I did my IOP on it and did a performance from the POV of one character who went so insane he broke his own nose. That was a scary experience for me and it felt real while I was doing it. Art can suck you into the imaginary realm and make you see things you couldn't see before, and it's both exciting and terrifying at the same time.
  6. Yeah, a big part of the IA is personal engagement, so as long as you find a way to take your topic and make it your own (even if it is just investigating a small part of the triangles that the other IA did not) then it should be clear that you are thinking on your own. (Side note: I had the exact same problem with my Chemistry IA. After having taken all my data I randomly found an example IA on the internet whose research question was focused on literally every aspect of my own experiment except one small small variation. That got me freaked out but my teacher reassured me that I was making it my own so I did not have to worry.)
  7. I'm really sorry to hear this. First off, I know firsthand that public speaking anxiety feels horrible, and it's really tough to get past. Know that you are not alone and there are various things you can do to help calm your nerves, including practicing at home, shaking your arms and legs before going up to perform (scientists have found that this removes anxiety quite a bit, like shaking off water) and possibly going out into a hall and doing a "power stance" (yes I know this sounds stupid but it actually boosts your confidence). Give yourself a mantra, not just "I'm going to do great", but "even if I do mess up, in the grand scheme of things, it will not hurt me". Alright, onto your topic. You have a good idea with taking a poem and analyzing it through connection to other pieces related to the topic. If you were to connect it to a song (and for simplicity I recommend just one song), try matching it to the context of the poem, and make sure to focus not too much on "musical" aspects like rhythm or melody, but on the words chosen. In planning out your IOP, I suggest looking through the poem and looking for sound devices and literary devices that emphasize a certain point FIRST. For example, "there is alliteration of the "b" sound. Could this be an emphasis on the loud beating of so-and-so's heart? An idea of fear?" And then connect to how fear arises in the song you have chosen and the purpose in each to bring about an idea of a topic in the poem and song. That's just an example, but I hope that process makes sense: Device in poem, purpose of device, similar device in song, how the two bring about an idea, connection to overall thesis. I hope this helps and I wish you luck on your IOP. Don't let the stress be a burden. Exercise a little (even if it's just jumping up and down for a minute) to shake the anxiety off, and get your mind off of the IOP and do other things every once in a while. If you have any more concerns PLEASE feel free to continue asking about the IB Forums.
  8. I haven't looked at the Oxford books that much but I use Haese. It describes the topics moderately well and has a large focus on example problems and review problems. The "review sets" at the end of each chapter are especially useful because they help you consider freely what methods to use to solve the problem. Granted, no problems ever match up to the IB exams as the IB comes out with a practically new type of question every year (lookin at you stats and calc questions). Regardless, it has been a good starting point for me.
  9. When you laearn so much of a second language that you realize how much of your first language you've been screwing up for years...
  10. Thank you so much! It's currently at 15 pages and I've been trying to cut it down (which I will continue doing), so this helps a lot. Thank you!
  11. That's a fine structure, though the IB says that if it sounds too choppy, you shouldn't state your knowledge questions explicitly (except maybe the overall knowledge question). Just have a knowledge question in mind and describe your answer to it, or if you do want to mention your knowledge question, give a short introduction to it in each paragraph, connecting it to what's already been stated so the audience understands why you are asking that question and how you came to it.
  12. How strict is the 6-12 page limit for science IA's? Will the moderator just stop reading at 12 pages and pretend like the rest doesn't exist. And do title pages in that page limit?
  13. Yeah, some very basic questions are often repeated, like I'm pretty sure every year there is always a question on the IB Chem paper 2 which says, "Define average bond enthalpy." It will probably test the same skills but for questions with more depth it probably won't be repeated exactly or with slight word changes.
  14. Depending on the composer you are looking for this may or may not help, but for mine I found a score on this website: http://imslp.org/wiki/Main_Page It gives both scores and audio.
  15. Thank you!