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can someone please explain the hill reaction?
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can someone please explain the hill reaction?
exactly i am so scared of p5 i am still not satisfied after doing all the past papershow are you guys preparing for p5??
me toooexactly i am so scared of p5 i am still not satisfied after doing all the past papers
solved all the papers...still not satisfied????exactly i am so scared of p5 i am still not satisfied after doing all the past papers
didnt exactly solve them just read the question made up an answer in mind and read the marking schemes to check if my ideas were correct.....the thing is i dont come up with the required number of points to get full marks:/solved all the papers...still not satisfied????
can smbdy explain da use of a respiratory inhibitor??
its simple..u just have to divide the 8 marks for 6 points...just saydidnt exactly solve them just read the question made up an answer in mind and read the marking schemes to check if my ideas were correct.....the thing is i dont come up with the required number of points to get full marks:/
AsSalamoAlaikum wr wb!its simple..u just have to divide the 8 marks for five points...just say
1----the independent variable..how its controlled
2----dependent variable...how its controlled and standardised
3----the variables that have to be kept constant
4----little procedure is needed for some Qs
5----safty precautions
5----how to make it more accurate and reliable
if u answer this much correctly 6 to 7 marks for sure u will gain...
to add...its simple..u just have to divide the 8 marks for five points...just say
1----the independent variable..how its controlled
2----dependent variable...how its controlled and standardised
3----the variables that have to be kept constant
4----little procedure is needed for some Qs
5----safty precautions
5----how to make it more accurate and reliable
if u answer this much correctly 6 to 7 marks for sure u will gain...
w/s wr wb...AsSalamoAlaikum wr wb!
That's exactly what I do...I mean what I understood when I once did pastpapers...!!
yes exactly...thats how to make it accurate and reliable..to add...
for accuracy...=> always some better apparatus...
for reliability => like if u have concentration as independent vaariable, say, take atleast 5 different concentrations....and with each ....repeat at least "three times" [yup not less than that, or u wont get the mark..] , take average, and plot..
i know this i learnt it from the past papers i was talking about some random 2-3 marks parts of the questions which come up sometimes anyways i hope we all do really well in p5 and come up with a good result Ameen!its simple..u just have to divide the 8 marks for 6 points...just say
1----the independent variable..how its controlled
2----dependent variable...how its controlled and standardised
3----the variables that have to be kept constant
4----little procedure is needed for some Qs
5----safty precautions
6----how to make it more accurate and reliable
if u answer this much correctly 6 to 7 marks for sure u will gain...
equal no. of banded and unbanded snails were released into both areas...means 1 area without bird and the other area with birds living there...so investigating the presence and absence of birds on the no. of snails...of course it will be the independent variable...http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Biology (9700)/9700_s09_qp_5.pdf
one more ques.
for Q no 2,why arent snails an independant variable? i mean we cant control da predation by birds right??
InshaAllah...i know this i learnt it from the past papers i was talking about some random 2-3 marks parts of the questions which come up sometimes anyways i hope we all do really well in p5 and come up with a good result Ameen!
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