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Vsu

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    Nov 2018
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    Australia

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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 re
  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
  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
  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 eva
  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
  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
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