Experimental Sciences
Discussion of Sports, Exercise & Health Science, Design Technology and advice on which science to take (if more than one science is asked about, ask here).
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Hello everyone. I'm new here, so I am sorry if this is not the place to discuss this topic. I am currently having Physics HL and Chemistry SL and I am looking for work books. I currently checked the IBID Press, Oxford IB and Cambridge IB but I can't decide on which one to buy. I guess they are all similar, but I want to know what you think. Also I prefer to have a book with detailed explanations/solutions for some questions, so that I will have a general idea about how to solve a question. Thank you.
Last reply by cank92, -
2 HL Sciences
by SCR- 16 replies
- 6.5k views
So I have been thinking about applying for IB and I really would like to do it. I want to be a dentist or get into med school after I am done with high school. Currently I am in grade 10 and I have registered for only gr 11/12 CERTIFICATE. I dont want to do diploma because it involves commiting so much..CAS, EE, etc and I would rather focus on doing IB on the subjects I enjoy. I applied for: HL biology HL chem HL pyschology (I can only take 3 or less HL subjects). Right now I'm having a lot of trouble with the courses I chose.. mainly everyone is telling me doing 2 HL sciences is suicide (or something along those lines) but I do enjoy science, I'm just nervous with everyo…
Last reply by racerocks, -
- 9 replies
- 3.3k views
AS of right now, I'm still in a dilemma as to which to pick in University, which is quite far away (2.5 years later). However, I want to start preparing as of now. I am taking Chemistry and Biology HL next year, when IB officially starts and we move from Pre-IB. I was thinking of reading a lot of biology + chemistry related stuff on Wiki, Google, etc. However, I'm not sure what to search for. I have this friend of mine who's really good at biology and chemistry, and he tells me to read more books, but he didn't elaborate on what books to read, so I really don't know how I can prepare myself for next year and university. Does anyone here know what I should look for on the…
Last reply by bLub, -
- 2 replies
- 997 views
Basically, I need help in tweaking an idea I found online into something I can actually experiment... I found this online and it really interested me: http://www.iworx.com/LabExercises/lockedexercises/LockedStretchReceptors-Reflexes-LS2.pdf However, I showed this to my teacher and said that it wouldn't be enough for an IA since it's just demonstrating a simple known fact. I would really enjoy doing an IA in this topic/area so can I have some ideas on what I could do with this?? Thanks!
Last reply by padfoot, -
- 4 replies
- 1.4k views
Hi, i was wondering if you could help me with this. let's take this as an example: i want to determine the enthalpy change for the reaction between copper sulphate and zinc. and the lab is a design lab. what can i write for the variables? what are the independent variables? dependent variables? constants? can you help me with this? i have some problems with variables. thanks...
Last reply by x___x, -
- 1 reply
- 48.2k views
I am doing my biology laboratory report. Can literature values just be values obtained by a university undergraduate who had done a similar experiment or does it have to be from a journal?
Last reply by Hedron123, -
- 3 replies
- 897 views
Has anyone else done this?
Last reply by Hailz, -
Design help!
by hanz- 1 reply
- 868 views
I previously dd an experiment about investigating food, it was measuring the current in lemons, grape fruits, tomatoes and other fruits. howecver HATED it! also my IA really sucked. In the first place i was not convinced, so i want to repeat my food investigation but i cannot find a good experiment about food! anyone have any ideas? that would be great! =D
Last reply by Sandwich, -
- 3 replies
- 821 views
So, for the Group 4 project, my partners and I are measuring how pH affects the glowing of the bacteria Vibrio fischeri. So, we have the set up, and we know that we want to measure the output of light from our different samples of the bacteria, but I have been at a loss for days as to what instrument would be best to use for measuring the light - and one I can easily get my hands on. Any suggestions? Has anyone tried to do something like this before?
Last reply by Bee.talbot, -
- 3 replies
- 2.7k views
So, I'm newly-registered, but I've skimmed these forums a few times before, and I used to be a member of IB Screwed. I've noticed that a G4 subject that seems to be completely neglected on here, and in general, is Design Technology. It's understandable; I know it's a very uncommon subject, not just in the US, but globally. But, I could use some help with it right now. It's a very simple request; I just need people to take my surveys for my IA (...due tomorrow). We had to do holiday-themed cookie packaging and make an IA on it. The first survey is to establish interest in my product- which would be pizzelle cookies, packaged with a Christmas/Italian theme- and the second i…
Last reply by tay6365, -
- 6 replies
- 7k views
do i have to take both Biology HL and Chemistry HL if i want to study medicine? would it be to hard? so maybe i should take chemistry sl? this is what i would take: english hl, biology hl, chemistry hl, history sl,french sl, math sl or english hl, biology hl, history hl, chemistry sl, french sl, math sl also i would have to do a 3/4 year science degree before med school, so maybe it is not necessary to take Biology and Chemistry at HL.??? thanks so much!
Last reply by 1-2-3, -
- 9 replies
- 6.4k views
Ok, so here it is... basically, we're the first IB batch of the school, which means that everyone in my school is new to the system and all. I just started my second year and I realised that we're behind in many things... one of the things are the science IAs... for chemistry, we've done a couple of practicals and submitted like two lab reports... but i'm sure we have to submit around 6-7... right? we've got like 4 to go... but when i read the assessment criteria and general info on science IAs i read that for HL 60 hours of labwork is required!! whoa!!! As for bio... we've hardly done any IA work! i'm really worried! bio and chem are my HL subjects and im going pale as …
Last reply by charco, -
- 0 replies
- 849 views
Hi everybody, Does anyone have access to Chem and Physics May and Nov 2009 exams along with the mark schemes?
Last reply by Saransh, -
- 6 replies
- 3.3k views
Hello everyone! I've got my Biology exam in a couple of days and was just wondering does anybody know what shade of pencil we have to use for paper 1? Thanks
Last reply by sweetnsimple786, -
- 4 replies
- 1.2k views
For self-designed labs, does it make a difference if you think of doing something really creative or not? So far in bio I've done two labs that were substantially different than what the rest of the class came up with, but it doesn't seem like that mattered much. So is it even worth it to spend the time coming up with something really original? In the end it just seems like you're marked the same as if you'd created a more obvious experiment. Another question: what kind of grades did you get the first few times you did self-designed labs? We've done three so far, and no one has done very well on any of them - in fact, most people failed the first one. Our teacher qui…
Last reply by KyleAdams, -
- 6 replies
- 1.2k views
My friends and I had a strange discussion about the so-called "science portfolios" in our schools and had few questions about them. The main one would be though: "Do the 'science portfolios' exist as such that the IBO tells each school to do them?" The reason for us thinking about it was that the 'science portfolios' we have to do in our school does not seem to appear anywhere on web (or at least we can't find information about it easily). Nevertheless, some science teachers in our school base our predicted grades heavily on these and tell us that the 'science portfolios' are part of the Internal Assessment section in the IB. Is it really true? The 'science portfolio' I …
Last reply by Chelleee, -
- 4 replies
- 1.1k views
Is it true that in IB Chemistry IAs a hypothesis is no longer required?
Last reply by Dropkick, -
- 5 replies
- 3.8k views
Well I'm going through the 4th week in IB! (yihaa) and I'm writing 4 tests ! Maths Hl Economics HL Chemistry Hl Biology SL I'm not worried about the first and the last because I'm sure I'll get a 7 But the problem is in the other two. Well I'm studying Economics, I've learnt everything by heart, and what I mean by everything is the teacher's notes, the book and the companion. I don't know what else to study! Any ideas of course are welcome! Last but NOT least is my chemistry test. I'm sure I know everything. I've solved 30 exercises that the teacher gave us and also did about 36-40 question from old chemistry past papers. But STILL there is something that I don't reall…
Last reply by Bishup, -
- 0 replies
- 779 views
Hello, I'm currently working on my EE and now I came across a problem. When I plot a graph of my data, each dot is a mean of three data values. I wanted to put error bars on it, but I'm not sure what to use. If I used standard deviation, which is in biology syllabus, it can be calculated using 3 values only and I suppose this makes it pointless, doesn't it? On the other hand, I could calculate uncertainties. This would include huge calculations and many formulas. This is fine with me, since I understand all this stuff and it looks sophisticated and actually it is so. So could you give me an advice, which is better to use in biology? Thanks, Dzeb
Last reply by Dzeb, -
- 1 reply
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What is the proper difference between Classical(Archaic), IUPAC, and Stock Nomenclature; when should each be used?
Last reply by Sandwich, -
- 5 replies
- 1.1k views
hi i am trying to decide between the two subjects fro IB. I dont wish to continue science in the future but am only interested in which one i will be able to achieve the highest grade in or which one is more impressive on a college application. I am about the same level in both. thank you
Last reply by deissi, -
- 15 replies
- 10.2k views
I'm asking this question purely because I want to know which one is easier, objectively. I know that in general, if you like a subject, you will be better in it, and you should always choose the one that you enjoy more. However, in my case, I am fairly neutral towards both. While chemistry seems a bit more interesting, that only because the BOOM! and flashy-flashiness of the experiments is fun. The rest of my courses are already pretty heavy (HL Math, HL History, HL English, HL French, and SL Economics) and I have no intention of going into medicine. So, IB Survivors! (or IB strugglers) SL Chem vs SL Bio Which one is easier, in your opinion? Feel free to share personal …
Last reply by Taigan, -
- 18 replies
- 2.7k views
I think I want to take a second science for my sixth subject, but I'm still undecided. I'm already taking HL Biology. At my school, Physics is two years long whether its HL or SL, while Chemistry and Environmental Systems and Societies are just one year and only available SL. I'm leaning towards Chemistry because I'm not sure if I want to take two years of Physics and I think the Environmental Systems class at my school might already be full, but I was wondering if anyone has opinions on which IB science they would recommend. Thanks.
Last reply by hanz, -
IB Sciences
by Feist- 7 replies
- 1.7k views
I know that passion and interest is a factor in choosing IB courses. However, I love(d) Biology and was a high achiever in it but when it came to this year, the intricate details accompanied by the wide scope was overwhelming. I liked the topic, I just didn't have the time to memorize every single system and function . I like all three sciences but I want to know the courseload so I can make the right choice (I'm taking 2 sciences next year by the way). So I ask: 1. Out of the three sciences (IB Biology, IB Chemistry and IB Physics) which do you think is the most rigorous in terms of courseload? Which did you score higher on? 2. Are there any programs that require Biolo…
Last reply by Yasmeen, -
- 18 replies
- 2.6k views
The IB "strongly reccommends" that the designs be done under exam conditions, so as to avoid copying and similar experiments amongst students from the same group. However, how do you do it at your schools? For chemistry, my teacher allows us to research around the topic and even write out our design, but we have to write the real thing out during class time without any access to notes. I was wondering if any of you are given the topic only on the day or if anyone is allowed to do it at home?
Last reply by biochem, -
- 11 replies
- 1.3k views
I'll be doing IB from this August. I wanna do law later and since i have to do a science, i cant decide between SL Chem or SL physics. I dont like both those subjects. So please help me decide:) The other subjects i'll be doing are: Eng A1 - HL Economics - HL Business - HL Math - SL French - SL
Last reply by Soundarya, -
- 4 replies
- 976 views
hey.. i am wondering what type of questions were there in the paper 2 in Chemistry M09 HL exam and in the Physics M09 SL exam?? does anyone know?? thanks NAD
Last reply by NAD, -
- 15 replies
- 2.2k views
Ok... The exams are closing in fast, and I'm wondering if anyone has any great tips, or usefull websites and other links for revision tools for the sciences. I personally am taking chemistry and physics at higher level, but feel free to post biology or EVS help aswell. So far I've been trying to answer past papers, and have been writing detailed notes following the syllabus, anybody got any other suggestions?? Thanks Rllbbryn =)
Last reply by moneyfaery, -
- 9 replies
- 1.2k views
SORTED Neuro+Physio + Biochem+Medicinces/drugs
Last reply by Asterix, -
- 22 replies
- 4.4k views
Which is harder out of Chem HL and Bio HL? Does Bio HL require A LOT of memorizing?
Last reply by Bend444, -
- 8 replies
- 1.1k views
I was informed of my IA grades yesterday, and my motivation completely died, to be honest. I didn't think I was doing that badly, but I was apparently wrong. Anyway, I'm doing Chemistry SL and my IA score before moderation is 32 points. I guess this could be raised or lowered a point or two, but I don't count on it. As I understand it, this is a weak 6 when converted to the final scale. This disappoints me very much, because I've been aiming for a 7 now that I'm doing it at SL. But I guess this is what I get for trying to do too much in IB1... So my question is whether it is worth to still study ambitiously. Would I have to have perfect scores on every paper in May …
Last reply by master135, -
- 12 replies
- 1.5k views
Today, my Biology teacher came up and talked to me and another student about how I labs were exactly the same, other than the name, of course. She went into this big thing about how if they sent it to IBO and the people found this then both of our IB diplomas would be rejected. We also both got zeros. Now, what happened was, this student was confused on the lab and asked to see mine. As you can imagine, that's not exactly what ended up happening with the lab...but I had no knowledge of this. The same student had also asked to see a few other labs, and so I'm planning on seeing which ones I emailed and then informing my Biology teacher about those so that they can be ch…
Last reply by JAYT, -
- 3 replies
- 858 views
For Biology SL, we did all our DESIGN labs in class time for some reason whereas in CHEMISTRY HL, we got to take them home. I personally do a lot better on labs I get to do at home. Is there an IB rule regarding design labs? I found nothing of that sort in the curriculum document...
Last reply by 1-2-3, -
- 2 replies
- 653 views
I need something that can measure mass vs time and graph it.. like a probe, but for mass. Maybe there's something like that for the graphing calculator? Anyone know?
Last reply by Tarz, -
- 22 replies
- 2.8k views
I need some serious advice. Will i survive if i do chem HL physics SL and French ab? I have never studied French before and I'm worried it might consume alot of my time to scrape a 5/6 for it. I'm a B(70) student in cousework but an A(90+) student in exams as i hate doing work until its due the following day. I'm a consistant and insistant procrastinator which I'll probably have to give up as a habit. Anyone got any advice on whether French ab is easier than indonesian ab? Really appreciate any help.
Last reply by Pod, -
- 9 replies
- 9.9k views
Have you ever made up data for an IA? I don't mean just randomly making up numbers, what i mean is looking at someone else's and change the numbers. I'm just wondering because i gave my results to someone else to do this and I'm just thinking about how it wouldn't be too obvious.
Last reply by IB_sucks, -
- 12 replies
- 2k views
Does IB require consistency in the significant figures for DCP or do they want consistency in the decimal place? For example: 12 and 0.75 both have 2 significant figs whereas 12.00 and 0.75 have a consistent 2 decimal place values
Last reply by IB_sucks, -
- 4 replies
- 1.1k views
Well, I'll be going into IB next year and I want to do two sciences at HL, and I was just wondering how much work is Chemistry and Biology HL? Will I be swamped with homework every weekend studying? The teachers said we'll be doing a lab once every four classes, just how much work will this add for me to do?
Last reply by hanz, -
- 4 replies
- 1.1k views
Since I'm taking both chemistry and biology, I get confused on whether I should treat the uncertainties in the same way. In bio lab reports, should uncertainty be propagated too? Or do we only put uncertainties in tables and graphs? And do we take the smallest division of a lets say the cylinder used? Or one tenth of the smallest division like we do in chemistry?
Last reply by IBdoc, -
- 2 replies
- 658 views
I always seem to use the wrong graph with the wrong values on axes when others would have been more appropriate and better for showing the data. How do I know which one to choose? grr! and how many different ones are there are which ones are good for what? D: D: D:
Last reply by SharkSpider, -
- 4 replies
- 883 views
Hey everyone, The Ib has just released a new version of the question banks. I'm just wondering if anyone could share it with us. Also is that allowed here? Can we post question banks? Thanks.
Last reply by Eternalx, -
- 11 replies
- 1.6k views
My schools graduation requirements states I must take Biology, Chemistry and Physics, and then choose a fourth year science of my choice, BUT, physics annoys me and I really like Biology and Chemistry. I planned on taking science, history and english (and possibly psych) HL, but how would i work this out? Ive been trying to talk with my IB Coordinator but, as it should be, IB students are first on the list, so its a long wait. If you were/are in this situation, what did you do? Thanks.
Last reply by IB_sucks, -
- 7 replies
- 1.4k views
[font="Trebuchet MS"]Hi there IBers I am currently an AS level student at Alton college in england. I've allways wanted to do the IB but my GCSE results were not good enough since I was homeschooled, had no teachers and only studied them for 4 months, I am also a year ahead at the moment. I am going to do the IB next year and I am having trouble deciding about which science to do. I am very much a sciency person and I want to do psychology along with two sciences at higher level. I am very good at Biology and am definetly going to do that as group 6 and I also want to do chemistry. Problem is, I have never done chemistry in my life and I don't know wether I will be ab…
Last reply by lindieeluieee, -
- 13 replies
- 1.5k views
Hey guys, my SL Chemistry teacher said she won't teach us the options for the exam (since there isn't enough time in the course to learn them), so we can choose whichever two we want to study. I've been looking at the options, and was wondering if there are any specifically that I should avoid because it's too hard to receive full marks for, or any that you have done and found to be to a piece of cake? Thanks. PS: The ones that I'm currently interested in are B) Human biochemistry, D) Medicines & Drugs, E) Environmental Chemistry and F) Food Chemistry.
Last reply by KLSmash, -
- 1 reply
- 740 views
Does any one have the sciences specimen papers for 2009? I known that our teachers already have them and probably our mock examinations are going to be on those papers.
Last reply by ok31, -
- 2 replies
- 705 views
I have HL bio and Chem. For next year, we have 2 free slots for classes. I have noticed a trend that most of the exams for HL group 4 subjects, overlap the material. Physics material usually is involved on the Chem exam, and some will go as far as to say they couldn't have solved the chem problem without the help of their physics class. My 2 class options: Environmental Science AP or Physics Honors/traditional/AP (not sure what the school will decide to do). I already took physics in pre-IB: and we only touched upon vectors and projectile motion. It was more conceptual, rather than problem solving. Should I even waste my time to go as far as taking onlin…
Last reply by Alfabeta, -
- 3 replies
- 620 views
I am just wondering, for those of you taking HL Biology. Does your instructor lecture most of the time? Or are you doing laboratory experiments?
Last reply by biochem, -
- 1 reply
- 1.1k views
So, the time seems to have rolled around where all of the IA's are rearing their tedious heads. As a result, I have both a Biology and Chemistry HL planning lab to design, carry out, etc. For biology, we are meant to be doing a lab based in ecology using the Simpson Diversity Index. Any ideas? I'm fresh out.
Last reply by Chookey Dawg, -
- 5 replies
- 787 views
When analysing your data, do you have to mention the source when you take information to explain your results from the internet?
Last reply by moneyfaery, -
- 3 replies
- 995 views
Ok i am just wondering the significance of a lab for a group 4 science subject because atm, my best mark for my physics lab is: Design- C,C,C, Data Collection- C,P,C Conclusion- P, P, P (=.=;; and i have 1 more and it is the last lab writeup for the year, so i'm wondering if i end up getting Design- C,C,C, Data Collection- C,P,C Conclusion- C,C,C how much of an effect will my P,P,P in conclusion affect my IB mark? oh yea also, how much of a role does a lab play in the final ib mark? For ex, can i have a 5 for my lab and get a 7 on my exam and come out with a 7 overall?
Last reply by moneyfaery,
