Embed Size (px)
Citation preview
Name
Patrick Brannac www.SmashingScience.org Page 1 of 29
Main differences between CORE only and the Extended topic weighting • Overall indications are that they are essentially the same, so don’t worry about it
• Topic 3 is less important: Topic 9 is more important
• Topics 4, 12 and 14 a little less important. Topics 8, 10 and 11 are a little more important
1 3 4 5 6 7 8 9 10 11 12 13 14
Paper 2 CORE % 6.3 12.2 4.2 4.1 1.2 7.0 13.4 10.8 11.1 8.9 0.3 2.7 17.7
P1,2, 6 2002-12 9.0 8.0 3.4 4.9 5.4 10.8 21.8 7.0 8.8 7.1 0.3 1.8 11.7
0.0
5.0
10.0
15.0
20.0
25.0
% o
f M
arks
aw
ard
ed
fo
r e
ach
to
pic
Paper 3 Topic Number
CORE PAPER 3 (pre2016 called Paper 2)Percentage of all marks awarded for each topic from w2002 to w2012 and wieghted for topic
across P1, 2 and 6 (red)
1 3 4 5 6 7 8 9 10 11 12 13 14
P4 2016m-17w 5.4 18.7 7.9 4.2 2.2 8.0 10.6 3.1 10.1 7.1 2.4 0.0 20.2
P3 2001-15 3.2 13.4 6.6 3.5 1.1 11.0 10.5 3.6 12.7 9.9 3.3 1.0 20.3
Paper 2 CORE % 6.3 12.2 4.2 4.1 1.2 7.0 13.4 10.8 11.1 8.9 0.3 2.7 17.7
0.0
5.0
10.0
15.0
20.0
25.0
% o
f M
arks
aw
ard
ed
fo
r e
ach
to
pic
Topic Number
0620 PAPER 2 (CORE) compared to Paper 3/4 (extended)Percentage of all marks awarded for each topic from w2001 to w2015 (paper 3) and for 2016m to 2017w (paper 4) compared with the CORE Paper, Paper 2 (w2002 to w2012)
Patrick Brannac www.SmashingScience.org Page 2 of 29
The Exam Papers Used
1st Paper
Last Paper
Total #
Papers
Marks/ paper
Theor. All
Papers
Actual All
Marks Difference % error
Weight per paper
%
Weight per
mark
Paper 1 2002s 2012w 22 40 880 869 -11 -1.3 30 0.75
Paper 2 CORE
2002w 2012w 21 80 1680 1676 -4 -0.2 50 0.63
Paper 6 2001w 2015w 29 60 1740 1890 150 8.6 20 0.63
Totals 72 180 4300 4435 100
Topics listed in order of frequency they appear in the exams studied There tends to be little deviation from this pattern so far, but be careful, just because a topic is not often examined, doesn’t mean that it cannot still, every now and then, cover 10 or more marks in a single paper, but if circumstances mean you have to
Topic 8 14 7 1 10 3 11 9 6 5 4 13 12
% Total ALL Papers 21.8 11.7 10.8 9.0 8.8 8.0 7.1 7.0 5.4 4.9 3.4 1.8 0.3
% Total P2: C grade Focus
13.4 17.7 7.0 6.3 11.1 12.2 8.9 10.8 1.2 4.1 4.2 2.7 0.3
Rank ALL Papers 1 2 3 4 5 6 7 8 9 10 11 12 13
Rank P2: A* Focus 2 1 7 8 4 3 6 5 12 10 9 11 13
CIE Chemistry 0620 CORE Only Syllabus Chem 11 (CORE Only)
Patrick Brannac www.SmashingScience.org Page 3 of 29
Q# 1/ iGCSE Chemistry 2012/w/Paper 2 (Core only)/Q7
Q# 2/ iGCSE Chemistry 2012/w/Paper 2 (Core only)/Q5
Patrick Brannac www.SmashingScience.org Page 4 of 29
Q# 3/ iGCSE Chemistry 2012/s/Paper 2 (Core only)/Q1b
Q# 4/ iGCSE Chemistry 2012/s/Paper 2 (Core only)/
Q# 5/ iGCSE Chemistry 2011/w/Paper 2 (Core only)/Q6
Patrick Brannac www.SmashingScience.org Page 5 of 29
Q# 6/ iGCSE Chemistry 2011/w/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 6 of 29
Q# 7/ iGCSE Chemistry 2011/s/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 7 of 29
Q# 8/ iGCSE Chemistry 2011/s/Paper 2 (Core only)/
Q# 9/ iGCSE Chemistry 2010/w/Paper 2 (Core only)/Q5
Patrick Brannac www.SmashingScience.org Page 8 of 29
d)
Q# 10/ iGCSE Chemistry 2010/s/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 9 of 29
Q# 11/ iGCSE Chemistry 2009/w/Paper 2 (Core only)/Q1
Q# 12/ iGCSE Chemistry 2009/w/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 10 of 29
Q# 13/ iGCSE Chemistry 2009/s/Paper 2 (Core only)/Q4
Q# 14/ iGCSE Chemistry 2008/w/Paper 2 (Core only)/Q5
Patrick Brannac www.SmashingScience.org Page 11 of 29
Q# 15/ iGCSE Chemistry 2008/w/Paper 2 (Core only)/
2b
Q# 16/ iGCSE Chemistry 2008/s/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 12 of 29
Q# 17/ iGCSE Chemistry 2008/s/Paper 2 (Core only)/
Q# 18/ iGCSE Chemistry 2007/w/Paper 2 (Core only)/Q3c
Q# 19/ iGCSE Chemistry 2007/w/Paper 2 (Core only)/Q2
Patrick Brannac www.SmashingScience.org Page 13 of 29
Q# 20/ iGCSE Chemistry 2007/w/Paper 2 (Core only)/
Q# 21/ iGCSE Chemistry 2007/s/Paper 2 (Core only)/Q1
Patrick Brannac www.SmashingScience.org Page 14 of 29
Q# 22/ iGCSE Chemistry 2007/s/Paper 2 (Core only)/
Q# 23/ iGCSE Chemistry 2007/s/Paper 2 (Core only)/
Q# 24/ iGCSE Chemistry 2006/s/Paper 2 (Core only)/Q5a
Patrick Brannac www.SmashingScience.org Page 15 of 29
Q# 25/ iGCSE Chemistry 2006/s/Paper 2 (Core only)/Q5
Patrick Brannac www.SmashingScience.org Page 16 of 29
Q# 26/ iGCSE Chemistry 2006/s/Paper 2 (Core only)/Q4
Q# 27/ iGCSE Chemistry 2006/s/Paper 2 (Core only)/Q2
Q# 28/ iGCSE Chemistry 2005/w/Paper 2 (Core only)/Q2
Q# 29/ iGCSE Chemistry 2005/w/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 17 of 29
Q# 30/ iGCSE Chemistry 2005/s/Paper 2 (Core only)/Q5d
Q# 31/ iGCSE Chemistry 2005/s/Paper 2 (Core only)/Q3d
Q# 32/ iGCSE Chemistry 2004/w/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 18 of 29
e
Q# 33/ iGCSE Chemistry 2004/w/Paper 2 (Core only)/
Q# 34/ iGCSE Chemistry 2004/s/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 19 of 29
Q# 35/ iGCSE Chemistry 2003/w/Paper 2 (Core only)/Q5
Q# 36/ iGCSE Chemistry 2003/w/Paper 2 (Core only)/Q5
Patrick Brannac www.SmashingScience.org Page 20 of 29
[2]
[2]
Q# 37/ iGCSE Chemistry 2003/s/Paper 2 (Core only)/Q6
Q# 38/ iGCSE Chemistry 2002/w/Paper 2 (Core only)/Q5f
Q# 39/ iGCSE Chemistry 2002/w/Paper 2 (Core only)/Q1
Patrick Brannac www.SmashingScience.org Page 21 of 29
Mark Scheme iG Chem 11 EQ 12w to 02w P2 CORE Only 150marks
Q# 1/ iGCSE Chemistry 2012/w/Paper 2 (Core only)/Q7
Q# 2/ iGCSE Chemistry 2012/w/Paper 2 (Core only)/Q5
Q# 3/ iGCSE Chemistry 2012/s/Paper 2 (Core only)/Q1b
Q# 4/ iGCSE Chemistry 2012/s/Paper 2 (Core only)/
Q# 5/ iGCSE Chemistry 2011/w/Paper 2 (Core only)/Q6
Q# 6/ iGCSE Chemistry 2011/w/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 22 of 29
Q# 7/ iGCSE Chemistry 2011/s/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 23 of 29
Q# 8/ iGCSE Chemistry 2011/s/Paper 2 (Core only)/
Q# 9/ iGCSE Chemistry 2010/w/Paper 2 (Core only)/Q5
5d
Q# 10/ iGCSE Chemistry 2010/s/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 24 of 29
Q# 11/ iGCSE Chemistry 2009/w/Paper 2 (Core only)/Q1
Q# 12/ iGCSE Chemistry 2009/w/Paper 2 (Core only)/
Q# 13/ iGCSE Chemistry 2009/s/Paper 2 (Core only)/Q4
Q# 14/ iGCSE Chemistry 2008/w/Paper 2 (Core only)/Q5
Q# 15/ iGCSE Chemistry 2008/w/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 25 of 29
Q# 16/ iGCSE Chemistry 2008/s/Paper 2 (Core only)/
Q# 17/ iGCSE Chemistry 2008/s/Paper 2 (Core only)/Q4
Q# 18/ iGCSE Chemistry 2007/w/Paper 2 (Core only)/Q3c
Q# 19/ iGCSE Chemistry 2007/w/Paper 2 (Core only)/Q2
Patrick Brannac www.SmashingScience.org Page 26 of 29
Q# 20/ iGCSE Chemistry 2007/w/Paper 2 (Core only)/
Q# 21/ iGCSE Chemistry 2007/s/Paper 2 (Core only)/Q1
Q# 22/ iGCSE Chemistry 2007/s/Paper 2 (Core only)/
Q# 23/ iGCSE Chemistry 2007/s/Paper 2 (Core only)/Q6
Q# 24/ iGCSE Chemistry 2006/s/Paper 2 (Core only)/Q5 a ii)Weakly acidic [1] b i) limestone
ii) carbon dioxide [1] & water [1]
Q# 25/ iGCSE Chemistry 2006/s/Paper 2 (Core only)/Q5
Q# 26/ iGCSE Chemistry 2006/s/Paper 2 (Core only)/Q4
Q# 27/ iGCSE Chemistry 2006/s/Paper 2 (Core only)/Q2
Patrick Brannac www.SmashingScience.org Page 27 of 29
Q# 28/ iGCSE Chemistry 2005/w/Paper 2 (Core only)/Q2
Q# 29/ iGCSE Chemistry 2005/w/Paper 2 (Core only)/Q4
Q# 30/ iGCSE Chemistry 2005/s/Paper 2 (Core only)/Q5
Q# 31/ iGCSE Chemistry 2005/s/Paper 2 (Core only)/Q3
Q# 32/ iGCSE Chemistry 2004/w/Paper 2 (Core only)/
Q# 33/ iGCSE Chemistry 2004/w/Paper 2 (Core only)/
Q# 34/ iGCSE Chemistry 2004/s/Paper 2 (Core only)/
Patrick Brannac www.SmashingScience.org Page 28 of 29
Q# 35/ iGCSE Chemistry 2003/w/Paper 2 (Core only)/
Q# 36/ iGCSE Chemistry 2003/w/Paper 2 (Core only)/Q5
Q# 37/ iGCSE Chemistry 2003/s/Paper 2 (Core only)/Q6
Q# 38/ iGCSE Chemistry 2002/w/Paper 2 (Core only)/Q5
Q# 39/ iGCSE Chemistry 2002/w/Paper 2 (Core only)/Q1
Patrick Brannac www.SmashingScience.org Page 29 of 29
