You are Here: Home

# AQA AS Chemistry UNIT 1: ISA Revision

Announcements Posted on
Last day to win £100 of Amazon vouchers - don't miss out! Take our quick survey to enter 24-10-2016
1. i got 46/50 which my teacher said was a b (
maybe with a bit of luck after moderation an a
goddammit
2. (Original post by sach21sk)
i got 46/50 which my teacher said was a b (
maybe with a bit of luck after moderation an a
goddammit
Hmmm, teachers have NOT gotten the grade boundaries yet, so your school just made a PREDICTED grade boundary (usually 1 raw mark higher to get the grade it was on last year). Most probably (if you did get 46/50) that's an A. Lowest possible outcome it's 47 (B)/ 60UMS, which is awesome!

Remember, AS will not affect your chances of getting A* in A2.
3. How is the overall grade mark given, like 30 marks is for the paper, how many marks are available for the table? Is that all we get assessed on?
4. (Original post by PakStar28)
How is the overall grade mark given, like 30 marks is for the paper, how many marks are available for the table? Is that all we get assessed on?
The table, average titre reading and PSA mark.
Average titre reading has to be within 1% of your teachers average titre reading- which will get: 4/4 marks.
Table + Average= 4/4 marks (remember, use concordant results only to get the average).
PSA (how well your teacher thinks you did the experiment)= 12/12 Marks. (In GCSE it was 6/6 marks- usually all teachers give full marks).
Actual paper= 30 Marks (Section A + B).
Total= 50/50 Marks.

EDIT: Look at the marking guidlines on whichever paper series you are doing. (Example Paper: CHM3T-P10-MG)
5. (Original post by r88ney)
That's not a stupid question AT ALL.
You would need to know the exact UMS score to be 100% sure.
Nonetheless, we can still get a good approximate:
Unit 1: 80/100 UMS = A
Unit 2: 110/140 UMS= A
Unit 3: 36/60 UMS= C - 40/50 RAW Marks. (Basing it on last year's Raw marks to UMS conversion)
Total (80+110+36)= 226/300 = B -> You would need to get a superb UMS score in Unit 2 (about 124-134), taking that into consideration, you most likely have gotten a B)
= 240/300 UMS= A
Many students from my school have who gotten an A/B in unit 1 seem to have done worser in unit 2 with B/C's (last year's students anyway), so If your dead certain that you smacked the unit 2 test then you might have gotten an A, but B is a good approximate to make.

For unit 2 last year I got 111/140 ums and that was a B and 112 was an A I don't understand how I dropped that mark
For unit 2 last year I got 111/140 ums and that was a B and 112 was an A I don't understand how I dropped that mark
My bad, yeah in Unit 2: 112/140 UMS = A
Unit 3 (ISA): 48/60 UMS = A

Ouch! 1 mark away from an A.
Getting a scrape A does not mean you got full raw marks (neither does getting 100% UMS). In your case you got 78/100 Raw marks (111/200 UMS) - still needing 21 marks (99/100) to get 100% UMS, and only 1 more mark (79/100 Raw Marks- 112/200 UMS) to get an A.

How can you not understand how you got lost that mark, you dropped 22 marks in the paper overall. So, it was either due to not understanding the question or just making mistakes. The markscheme (and question paper) is surely out now- so if you remember your answers, you can asses over them to find out where you made the mistakes. You should have asked your teacher last year to get the electronic script of the paper you did, therefore you and your teacher could go over your mistakes- and would have considered if it was worth getting it remarked.

http://web.aqa.org.uk/UMS/index.php
Qualification: AS
Series: June2011
Unit: CHEM2 - GCE CHEMISTRY UNIT 2
Click the "Convert one mark" - and then the field will be highlighted, and below it will say "Enter you raw mark" (for you, it will be: '78').
Note: Each time you select a field, the page will refresh for every stage.
7. Hi Guys,

Was wondering if anyone knew any good resources to use for revision for the Section B - general knowledge part of the paper, as there is nothing in the textbook, and i dont know any web resources for written papers examinations, bar the past papers... or is that the best revision for Section B also?
8. (Original post by coolstorybrother)
Hi Guys,

Was wondering if anyone knew any good resources to use for revision for the Section B - general knowledge part of the paper, as there is nothing in the textbook, and i dont know any web resources for written papers examinations, bar the past papers... or is that the best revision for Section B also?
I actually was wondering the very same thing, where do you get the information to answer general knowledge questions (any help would be greatly appreciated).

All my teacher told me was answer all the questions in the specification, and one book won't tell you all the information- I'm sure everybody here has that AQA endorsed 'Ted Lister' & 'Janet Renshaw' AS Chemistry book- which doesn't tell you anything on how to answer those 'general knowledge' questions. The best resource I can offer/ know about is using the ISA past papers, just to get the general idea.

This is precisely why the ISA papers tend to be so hard in getting almost maximum marks/ maximum marks- which you must get if you want an A, as you can only lose 4 marks at MAX to SCRAPE getting an A ¬_¬.
9. (Original post by r88ney)
I actually was wondering the very same thing, where do you get the information to answer general knowledge questions (any help would be greatly appreciated).

All my teacher told me was answer all the questions in the specification, and one book won't tell you all the information- I'm sure everybody here has that AQA endorsed 'Ted Lister' & 'Janet Renshaw' AS Chemistry book- which doesn't tell you anything on how to answer those 'general knowledge' questions. The best resource I can offer/ know about is using the ISA past papers, just to get the general idea.

This is precisely why the ISA papers tend to be so hard in getting almost maximum marks/ maximum marks- which you must get if you want an A, as you can only lose 4 marks at MAX to SCRAPE getting an A ¬_¬.
Your raw mark is moderated first though, so you didn't actually need to get 46/50 raw marks before moderation to get 46/50 after moderation, and so an A.
10. (Original post by r88ney)
I actually was wondering the very same thing, where do you get the information to answer general knowledge questions (any help would be greatly appreciated).

All my teacher told me was answer all the questions in the specification, and one book won't tell you all the information- I'm sure everybody here has that AQA endorsed 'Ted Lister' & 'Janet Renshaw' AS Chemistry book- which doesn't tell you anything on how to answer those 'general knowledge' questions. The best resource I can offer/ know about is using the ISA past papers, just to get the general idea.

This is precisely why the ISA papers tend to be so hard in getting almost maximum marks/ maximum marks- which you must get if you want an A, as you can only lose 4 marks at MAX to SCRAPE getting an A ¬_¬.
The ambiguity of preparing for the Isa really pisses me off - especially for Section B, how on earth is it fair for student who want to do well when there even is a lack of revision material (nothing in the textbook). Surely this makes the whole thing pointless? I dont understand the notion of not putting anything in the book for Sect. B as you could still test a student's knowledge in context with some "base material" if there was something in the book.... I don't understand what they achieve by leaving it resourceless combining this with astronomically high grade boundaries is ridiculous.
11. (Original post by Tullia)
Your raw mark is moderated first though, so you didn't actually need to get 46/50 raw marks before moderation to get 46/50 after moderation, and so an A.
Moderation hardly ever changes anybody's marks. Usually the teachers are dead strict the first time around, and nobody ever wants to moderate the marks to increase.

(Original post by coolstorybrother)
The ambiguity of preparing for the Isa really pisses me off - especially for Section B, how on earth is it fair for student who want to do well when there even is a lack of revision material (nothing in the textbook). Surely this makes the whole thing pointless? I dont understand the notion of not putting anything in the book for Sect. B as you could still test a student's knowledge in context with some &quot;base material&quot; if there was something in the book.... I don't understand what they achieve by leaving it resourceless combining this with astronomically high grade boundaries is ridiculous.
I strongly agree with you on this

In the AS Physics book (exclusively endorsed by AQA), there is a UNIT 3 sub topic for revision. There are a couple of pages dedicated to helping you with your ISA. So what I don't understand is, why on earth isn't there for AQA AS Biology or Chemistry?
12. (Original post by r88ney)
Moderation hardly ever changes anybody's marks. Usually the teachers are dead strict the first time around, and nobody ever wants to moderate the marks to increase.

I strongly agree with you on this

In the AS Physics book (exclusively endorsed by AQA), there is a UNIT 3 sub topic for revision. There are a couple of pages dedicated to helping you with your ISA. So what I don't understand is, why on earth isn't there for AQA AS Biology or Chemistry?
EXACTLY.
13. ive heard that this isa is rlly hard compared to others in the past but idk if its true...im jus revisin past papers
14. Got my practical on the 7th and then the exam on the 14th
15. i got my exam 2morow lol
16. (Original post by SoftMusk)
i got my exam 2morow lol
Good luck
17. (Original post by AmyLH)
Good luck
thanks!!
18. got my 1 in 2 weeks , already done my human biology 1 and got grade back from teacher dunno if i can post it though? lol stupid rules
19. is this the first chemistry ISA? coz i've already done that..
20. I'm going to have to this at some point, I'm a bit worried as I got a C grade last year and I kind of need an A

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: February 5, 2013
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

### How does exam reform affect you?

From GCSE to A level, it's all changing

### Q&A with Paralympian Jack Rutter

Poll
Useful resources

Can you help? Study Help unanswered threadsStudy help rules and posting guidelines

## Groups associated with this forum:

View associated groups
Study resources

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.