UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS
GCE Ordinary Level
MARK SCHEME for the May/June 2008 question paper
Paper 6 (Alternative to Practical), maximum raw mark 40
This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of
the examination. It shows the basis on which Examiners were instructed to award marks. It does not
indicate the details of the discussions that took place at an Examiners’ meeting before marking began.
All Examiners are instructed that alternative correct answers and unexpected approaches in
candidates’ scripts must be given marks that fairly reflect the relevant knowledge and skills
Mark schemes must be read in conjunction with the question papers and the report on the
CIE will not enter into discussions or correspondence in connection with these mark schemes.
CIE is publishing the mark schemes for the May/June 2008 question papers for most IGCSE, GCE
Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses.
GCE O LEVEL – May/June 2008
© UCLES 2008
test–tube / no.
total surface area /
time taken for colour change / s
format as shown A: horizontal or vertical and extra column(s)
table ruled and joined up
titles and units as appropriate in headers
surface area calculations correct
all boxes completed R: mixed minutes and seconds
(b) (i) graph marks:
axes correct (x – surface area / volume – horizontal)
labelled ‘surface area / volume (ratio)’ and ‘time / seconds’ (t / s)
correct (equal spaced) scale, good size
plots clear and accurate
good line of best fit / ruled connections
bar: 1 and 2 only
(ii) bigger surface area (volume ratio) – shorter time / faster