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madmadmax321
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#1781
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#1781
(Original post by Liam2404)
How Science Works haha :')
Haha yep I was being stupid :P
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lifeisgood2012
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#1782
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#1782
(Original post by RJ96)
can you explain what HSW means?
HSW is where the answer to the question is not recall or stating facts... you have to apply the knowledge you have learnt to answer the question
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PR11NCE
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#1783
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#1783
(Original post by James A)
Learn the mark scheme! Also when attempting the HSW questions, try and visualise in your head what the scientists are trying to do. That way, some of the questions like 'evaluate the scientist's conclusion' come natural to you. Think to yourself about all factors, e.g how many times the expt was carried out, whether a control group was used etc!

Best of luck!
Thank You!!
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PR11NCE
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#1784
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#1784
(Original post by Liam2404)
I usually just go through the paper question by question, but for some reason i almost didnt finish the unit one paper! I think I might do the HSW and 6 marker question first, but i'll have to try it in the mock I do tomorrow to see how it goes, might be better to get into the swing of things before taking them on
Thanks, I think i'll follow in your footsteps!
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lifeisgood2012
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#1785
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#1785
(Original post by James A)
Do you mean 88% as in UMS or raw marks? I got 88% in ums for the Jan paper too :zomg:
yhhh... basically 124/140
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Felttip
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#1786
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#1786
Anyone got like a walkthrough to answer experimental questions because half the paper of biol 2 is experimental!!!!!! This will be useful for everyone... Thanks and good luck guys
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PickwickianGeek
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#1787
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#1787
(Original post by haydenkwangl)
Oh god I used point form for unit 1...
No, you do not have to use continuous prose. In fact, it is easier for examiners to mark your work if you write in bullet points. I used to think you had to write in prose as well and I've lost grades because of this. The mark scheme is laid out in bullet points, so why can't candidates give their answers like that as well?

You're better off writing in bullet points.
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iamNatasha
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#1788
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#1788
Can someone PLEASE explain all the surface area to volume ratio thing because i seriously don't get it!!! Thanks!
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haydenkwangl
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#1789
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#1789
(Original post by PickwickianGeek)
No, you do not have to use continuous prose. In fact, it is easier for examiners to mark your work if you write in bullet points. I used to think you had to write in prose as well and I've lost grades because of this. The mark scheme is laid out in bullet points, so why can't candidates give their answers like that as well?

You're better off writing in bullet points.

Thank you so much braw....I wrote full sentences for all points though
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anonymousecheese
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#1790
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#1790
(Original post by iamNatasha)
Can someone PLEASE explain all the surface area to volume ratio thing because i seriously don't get it!!! Thanks!
my teacher said that the smaller the distance from the surface of the animal to its centre the larger the SA: vol
E.G. a mouse
the larger the distance from the surface of the animal to its centre the smaller the SA: vol
E.G. an elephant
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Areen5
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#1791
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#1791
Can someone help me with this question please?

"Scientists investigated the effect of drinking tea and coffee on reducing the risk of
developing one type of brain cancer. The investigation involved 410 000 volunteers and
was conducted in 10 European countries over a period of 8.5 years.

The incidence for this type of brain cancer is 6 cases per 100 000 per year.
Use this information to calculate the expected number of volunteers developing this
cancer during the 8.5 year period of this investigation. Show your working."

Thank you
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iamNatasha
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#1792
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#1792
(Original post by anonymousecheese)
my teacher said that the smaller the distance from the surface of the animal to its centre the larger the SA: vol
E.G. a mouse
the larger the distance from the surface of the animal to its centre the smaller the SA: vol
E.G. an elephant
Thanks! That sense! Do you know what kind of question they normally ask on surface area??
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dooobie_
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#1793
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#1793
Big marker question topics?

Posted from TSR Mobile
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F1's Finest
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#1794
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#1794
(Original post by lifeisgood2012)
yhhh... basically 124/140
Sweet, I got 123 ums haha
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anonymousecheese
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#1795
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#1795
(Original post by Areen5)
Can someone help me with this question please?

"Scientists investigated the effect of drinking tea and coffee on reducing the risk of
developing one type of brain cancer. The investigation involved 410 000 volunteers and
was conducted in 10 European countries over a period of 8.5 years.

The incidence for this type of brain cancer is 6 cases per 100 000 per year.
Use this information to calculate the expected number of volunteers developing this
cancer during the 8.5 year period of this investigation. Show your working."

Thank you
410'000/10000 X24.6 (no. of cancer per year)
x8.5=209.1 (no. of cancer over the 8.5 years)
(thats how i calculated it)
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Amenbreak321
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#1796
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#1796
(Original post by Areen5)
Can someone help me with this question please?

"Scientists investigated the effect of drinking tea and coffee on reducing the risk of
developing one type of brain cancer. The investigation involved 410 000 volunteers and
was conducted in 10 European countries over a period of 8.5 years.

The incidence for this type of brain cancer is 6 cases per 100 000 per year.
Use this information to calculate the expected number of volunteers developing this
cancer during the 8.5 year period of this investigation. Show your working."

Thank you
6 x 4.1 x 8.5
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lifeisgood2012
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#1797
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#1797
(Original post by James A)
Sweet, I got 123 ums haha
You retaking biol4/biol5 bro?
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madmadmax321
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#1798
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#1798
(Original post by Areen5)
Can someone help me with this question please?

"Scientists investigated the effect of drinking tea and coffee on reducing the risk of
developing one type of brain cancer. The investigation involved 410 000 volunteers and
was conducted in 10 European countries over a period of 8.5 years.

The incidence for this type of brain cancer is 6 cases per 100 000 per year.
Use this information to calculate the expected number of volunteers developing this
cancer during the 8.5 year period of this investigation. Show your working."

Thank you
first you times 6 by 4.1 to get how many cases per 410 000 per year (as 6 is per 100 000)

then you times that answer by 8.5 to get how many people over the 8.5 year period per 410 000

so: 6 x 4.1= 24.6
then 24.6 x 8.5= 209.1 = 209 people (cant have .1 of a person)
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anonymousecheese
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#1799
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#1799
normally ones to do with oxygen dissociation curves of different animals and comparing their positions on the graph
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F1's Finest
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#1800
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#1800
(Original post by lifeisgood2012)
You retaking biol4/biol5 bro?
I got 80/100 in unit 4 so I dont need to retake that, but I am doing unit 5.

You?
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