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  1. Oh ok, yeah I get that. I guess it just feels nice as sort of like a safety net, although in the face of the 80% weighting of the exams, I guess that's not much haha. Also, this is just pure curiosity, so sorry if it's a bother, but what did you do your IAs on, if you remember? I did my chemistry IA on how temperature affects the buffer capacity of the McIlvaine Buffer, and I'm doing my biology IA on how the ratio of glycerine to petrolatum in a 'moisturiser' mixture retains the water content of agar.
  2. Ohh I see, it's a shame marks can sometimes be compromised for those kinds of reasons, rather than just a straight-forward mark. Good job btw! That's such a good score. In terms of the 17+ points out of 24, isn't the grade boundary for a 7 in science IAs at approx. 20? Also, thank you so much for all the advice! It's been a huge reassurance and help.
  3. Thank you so much for the response! Sorry for this late one, for some reason I didn't get a notification so I had no idea someone replied until I searched the exact same thing and my own thread came up! For getting 3/4 for Communication, do you think the lost mark was due to having so many pages (even though you were within the limit for one of them) and the other condensing factors of 1.0 spacing and small font, or were there any other reasons such as tables or other communication criteria? Right now, my biology IA is exactly at 12 pages with 1.0 spacing, 11 size font (including reference list would be 14), but after the first draft my teacher wants me to add in things and make the graphs bigger so they're clearer, but this will bump me up another 1-2 pages. She says the 12 pages limit isn't strict so I won't be affected, but I'm not sure I trust her judgement on that
  4. Dance: do you think that I can just look at the maths of a pirouette and leap then, rather than finding if infinite pirouettes are possible. Draw: I asked my teacher if it was possible, but she said there was no point to it. Even if I did include all those different functions, isn't it just a list of functions that form a picture? Do you have any suggestions for how I could spin that into an actual investigation/exploration? Game Theory: ah ok, thank you. I'll cross that off the list then. I was doing some more research before, and I was looking at rainbows. There seems to be a lot of maths in the angles, reflection, refraction and Snell's law etc. but I'm not sure what the exploration part would be, and if it's too much physics? And thank you! I'll check out that youtube account.
  5. Hi, I have a couple of very rough ideas (or really, just topics) for my Maths IA, but I don't know if any of them will work. Also, if you have any suggestions in the areas listed below, for how to turn them into a good maths IA (regardless of what I've written beside the bolded word) that'd would be MUCH appreciated. Dance: I was thinking maybe investigating whether an infinite pirouette is possible, like the angle the bent leg needs to be at, the angle the other leg pushes off of, arm position and force/power of pushing off? Or looking into the maths of a leap (grand jete), maybe area under the curve? Drawing: I really enjoy drawing, and I was hoping to somehow find maths in it? I was thinking maybe I could make a drawing using functions e.g. https://www.desmos.com/calculator/xatpypbly6 but I don't think that really investigates anything. I found something about how Van Gogh's Starry Night's paint strokes actually reflect Kogmorov's (sorry for butchering his name) Equation that is the most accurate equation for modelling Turbulence or something like that? But I think that's far too complicated for an SL maths IA. Sewing: sewing is a hobby of mine, and I thought it was probably an area that would have a lot of maths in it, but most of my research could only find elementary maths, like sizing or geometry. Do you know if there's any maths I can use to look into changing 2D pattern pieces to fit a 3D figure, or something like that? Or just anything to do with sewing, really. Game theory, prisoner's dilemma: I read about how prisoner's dilemma shows human behaviour of how we cooperate with one another, and do so consistently, but then after a while, one party will break the trust, causing them to fall into a period of uncooperation. But then the cycle repeats, and I was thinking maybe this sounds like a sine curve and I could use it to model war and maybe predict when the next big war might be? On a side note, I was thinking of using a computer program that essentially "plays" prisoner dilemma with you, and use the data from that to sketch a graph or something. The problem is, I think one my classmates has also chosen to do the prisoner's dilemma. Or if none of them work, any other ideas would be so helpful too. If that's the case, I think I'm interested in calculus and functions, graphs. Other random topic ideas I've had are: origami, exercise, the fourth dimension (though I think this might be too hard), hexaflexagons, rainbows. Please, any suggestions or feedback would be so good, I'm really worried about this.
  6. Your IA Ideas sound so interesting, what would you plan to do for the blood splatter analysis and "folding paper more than 7 times formula"?
  7. Could you tell us what your results are?? It seems a few of us are really interested!
  8. I have three ideas for my Biology IA, and I was wondering if anyone could give an opinion on which one might be best or easier to conduct? 1. Investigation of the competitive inhibitor ONPG on the activity of the enzyme lactase in breaking down lactose, as measured by glucose concentration. IV = diff. concentrations of ONPG 2. Investigating the ability to retain water and moisture of different moisturisers on gelatine, as a model for human skin. I would spread the moisturiser on top of the gelatine (which are in petri dishes) and measure any changes in mass as indication of water evaporation. Moisturisers would be lotion, creams and ointments, with lotions having the greatest water quantity, and ointments being oil based. Or I was thinking instead of using moisturiser products themselves (since there's a bunch of ingredients, making it difficult to control), I was thinking of using only the main ingredients? Such as petroleum jelly, glycerin, water, some kind of oil (e.g. jojoba oil, coconut oil), control? Or maybe I could do different ratios of water to oil so that the IV can be continuous data? 3. Investigating the effect of different SPF levels of sunscreen by shining a UV light onto bacteria. (originally wanted to do onion cells and calculate the mitotic index, but the teacher suggested bacteria might be simpler and less time-consuming/demanding) Any opinions or help at all would be much appreciated!
  9. Hi! I was just wondering whether the 12 page limit included the bibliography? My chemistry teacher said it didn't but then my biology teacher said it did. Also, are there restrictions on the spacing? Can it be 1.0 spacing? Because I heard from a friend that it should be 1.5-2.0 spacing. Also, any other restrictions such as font size and margin spacing? Thank you!
  10. Um, I'm not the person that asked nor is wanting to do this for their Maths IA, so I'm not sure why you quoted/replied to me. That was just a link that explained game theory in terms of scissors, papers, rock that I thought might help the OP if they really wanted to do this one.
  11. It's not really 1/3. That's what it seems at first, but try drawing out a table of outcomes and their probability of occurring. Also, it would be interesting to take into account human psychology and their behavourial patterns, as it changes in response to previous rounds. https://ibmathsresources.com/2015/08/29/how-to-win-at-rock-paper-scissors/
  12. Hi! For my chemistry IA, I'm doing it on whether temperature affects buffer capacity, and the buffer solution I'm experimenting with the McIlvaine Buffer. And I know, I'm so stupid for using this buffer cause there's barely any information on it. I was wondering if anybody would know what the equilibrium chemical equation for it would be? I'm a little confused as to how it would work when there's citric acid (C6H8O7) and disodium hydrogen phosphate (Na2HPO4) and then add sodium hydroxide (NaOH) to it as the titrant. I understand the basic buffer equation, with a weak acid and it's conjugate base in equilibrium and hydrogen ions floating around that then react with added strong bases, but since this buffer has disodium hydrogen phosphate in it as well as citric acid, I'm not entirely sure how it works. Any help would be much appreciated! Thank you so much.
  13. Thanks! This makes me feel a little more relieved. Can I ask whether for your IA, did you know if you were meant to see some kind of a trend? Or if you went in really just to find out if there would be? Also, what do you mean by mini-trends? Thank you so much!
  14. I'm doing my chemistry IA (SL) and my question is how temperature affects the buffer capacity of the citric acid - disodium hydrogen phosphate buffer (citrate-phosphate buffer). I've done the temperatures 10, 25, 40, 55, 70 degrees celsius, and I've done a number of trials for each (5+) and I've been looking at how many millilitres of NaOH it takes to break buffer capacity (so on a titration curve, the point when it starts to shoot up). The millilitres it takes for each of the temperatures all seem to be the same, so in conclusion, my data presents no trend in results. There also don't seem to be any literature values that I can find to compare this data to. I was wondering if it's alright to not have a trend and still be able to get a high mark. I've done a lot of processing of data, but I'm not sure if this will allow me to analyse it? Thank you. My teacher sort of said it was fine but I'm still worried. There's also not a lot of information out there on this particular buffer, McIlvaine Buffer, only on how to make it.
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