Science
Stage 9
Paper 1
Cambridge Lower Secondary Progression Test
Mark Scheme
3146_01_MS_6RP
© UCLES 2024
2024
S9/01
Science Stage 9 Paper 1 Mark Scheme
2024
General guidelines on marking
Many descriptive answers can be expressed in a variety of ways. Professional judgement can be
used in these cases, providing it matches the marking points and further information in the mark
scheme.
Answers may have words spelt incorrectly. Credit is normally given for phonetically correct answers,
unless the word has a scientifically different meaning. For example, where the answer should be
antennae, credit will be given for antena but not for anthen (too close to anther).
Only the science is being assessed, so answers do not need to be grammatically correct.
Significant figures will be indicated in the question or in the mark scheme.
Unless specified all marking points are independent.
Annotations and abbreviations
/ or
alternate responses for the same marking point
( ) brackets
the words or units in brackets do not need to be stated, for example, (recycles or
releases or provides) minerals = minerals scores the mark
underline
exact word is required
Accept
an acceptable response
Do not accept
indicates an incorrect response that would contradict another otherwise correct
alternative
Ignore
indicates an irrelevant answer that is not creditworthy. Full marks can still be
achieved even with answers that are ignored.
Note
provides extra information when necessary
ecf
error carried forward; marks are awarded if an incorrect response has been carried
forward from earlier working provided the subsequent working is correct
ora
or reverse argument; for example, as mass increases, volume increases could be
written as mass decreases, volume decreases
© UCLES 2024
Page 2 of 12
2(c)
2(b)
2(a)
Question
1(b)
1(a)
Question
© UCLES 2024
S9/01
gas at room temperature
low boiling point
low melting point
any one from
Page 3 of 12
(explanation) a pair of electrons shared (by two atoms)
(type of bonding) covalent (bonding)
10
protein(s)
(E) (renal) artery
(D) urethra
Marks
Further Information
1
2024
Accept poor conductor of electricity or does not
conduct electricity or can flow easily or has a low
density
Accept two electrons that are shared
2 each correct answer = 1 mark
1
1
one or two correct = 1 mark
(C) bladder
3 all five correct = 3 marks
Further Information
three or four correct = 2 marks
Answer
Marks
(B) ureter
(A) kidney
Answer
Science Stage 9 Paper 1 Mark Scheme
5(c)
5(b)
5(a)
Question
4(b)
4(a)
Question
3
Question
© UCLES 2024
S9/01
Answer
zinc is less reactive than magnesium
magnesium sulfate
copper
displacement
Page 4 of 12
2024
Accept zinc is lower down the reactivity series
than magnesium
1 Accept ora
Note answers can be given in either order
2 each correct answer = 1 mark
1 Ignore chemical
Further Information
Ignore nutrition or taking in nutrients
Accept eating
(process B) feeding
2 each correct answer = 1 mark
1
Further Information
Ignore perspiration
1 Accept endothermic
Further Information
Accept burning
Marks
Marks
Marks
(process A) combustion
Answer
label the arrow from carbon dioxide in the air to carbon
compounds in plants with the letter P
evaporation
Answer
Science Stage 9 Paper 1 Mark Scheme
37
38
age of fetus
in weeks
2.30
35
2.40
2.50
2.60
2.70
2.80
2.90
36
37
38
39
40
3.00
36
6(c)
2.30
35
2.40
2.50
2.60
2.70
point at (38, 2.6) circled
mass of fetus
in kg
2.80
2.90
3.00
6(b)
6(a)
Question
© UCLES 2024
S9/01
39
40
Answer
Page 5 of 12
Marks
Science Stage 9 Paper 1 Mark Scheme
2
1
small square =
Note line of best fit judged by eye and does not
consider the anomalous result
Do not accept dot to dot
Accept ecf on plotting from part (b)
1 Accept ecf on plotting from part (a)
Accept ecf on plotting from part (a)
1 Accept any indication of anomalous plot, e.g.
circle on table of results, but answer on graph
takes precedence
Accept plots with small x, dot, or dot with circle
1 mark
all points correctly plotted ±
2 labelling of x-axis and labelling of y-axis = 1 mark
Further Information
2024
amplitude
7(c)
Page 6 of 12
high pitch sound has higher frequency (than low pitch
sound)
arrow drawn vertically from x-axis to the crest of waveform
or
arrow drawn vertically from x-axis to the trough of waveform
Answer
Marks
Science Stage 9 Paper 1 Mark Scheme
7(b)
7(a)
Question
© UCLES 2024
S9/01
1
Accept the frequency decreases
1 Accept ora
1
Further Information
2024
Answer
decreases
98
10(b)
D E (B) A C
Answer
Answer
Page 7 of 12
(idea that) continents moved apart due to movement of
plates or moved apart due to plate tectonics
Marks
Marks
Marks
Science Stage 9 Paper 1 Mark Scheme
(idea that) these continents were once joined together
10(a)
Question
9
Question
8
Question
© UCLES 2024
S9/01
1 Accept answers in the range 80–120
1
Further Information
AC in correct order = 1 mark
2 DE in correct order = 1 mark
Further Information
Accept (idea of) continental drift
2 each correct answer = 1 mark
Further Information
2024
12
Question
11(b)
11(a)
Question
© UCLES 2024
S9/01
stars
dust and gas
Answer
in a series circuit the lamps are less bright
A
Answer
Page 8 of 12
Marks
Marks
Science Stage 9 Paper 1 Mark Scheme
Accept dust and gas in either order
3 each correct answer = 1 mark
Further Information
Note answer must be comparative
1 Accept ora
Ignore junction of conductor symbols
correct symbol for lamps in parallel and correct
symbol for ammeter in series with one lamp = 1
mark
Do not accept open switch
correct symbol for a battery of cells and closed
switch = 1 mark
3 any complete circuit drawn with at least one
component and no gaps = 1 mark
Further Information
2024
13(b)
13(a)
Question
© UCLES 2024
S9/01
R
S
R
Some adaptations are advantageous in
one environment and not in another.
Genes controlling features which help
survival pass into offspring.
Individuals with adaptations less
advantageous to the environment die
before they reproduce.
Page 9 of 12
letter
statement about natural selection
height or size or mass or fur colour
Answer
Marks
Science Stage 9 Paper 1 Mark Scheme
one or two correct = 1 mark
2 all three correct = 2 marks
Ignore age
1 Accept fur thickness or antlers
Further Information
2024
15
Question
14(b)
14(a)
Question
© UCLES 2024
S9/01
3rd box ticked
more collisions
Answer
Page 10 of 12
(explanation) (as concentration increases) there are more
particles per unit volume or particles are more crowded or
particles are closer together
(prediction) as the concentration increases the reaction time
decreases or as the concentration increases the rate
increases
as the temperature increases the reaction time decreases
Answer
Marks
Marks
Science Stage 9 Paper 1 Mark Scheme
Accept any indication of the correct answer, e.g.
circling or underlining, but ticking takes
precedence
1 more than one box ticked = 0 marks
Further Information
Ignore references to successful collisions
Do not accept particles have more energy or
particles are moving faster
Accept more frequent collisions or more chance
of collision or collisions more often or more
collisions per second = 2 marks
Accept more particles in the same volume
3 each correct answer = 1 mark
1 Accept ora
Further Information
2024
17(c)
17(b)
17(a)
Question
16
Question
© UCLES 2024
S9/01
37(.0) (cm3)
1030 kg / m3
Page 11 of 12
1
Accept any indication of the correct answer, e.g.
ticking or underlining, but circling takes
precedence
1 more than one answer circled = 0 marks
Note explanation marking point is independent of
materials
2 each correct answer = 1 mark
Further Information
(explanation) less dense than water
Marks
Accept other suitable impacts of climate change
2 each correct answer = 1 mark
Further Information
both materials needed either order for the mark
Answer
Marks
2024
(materials) plastic and wood
extreme weather events
drought
flooding
sea levels rise or sea levels change
any two from
Answer
Science Stage 9 Paper 1 Mark Scheme
S9/01
Science Stage 9 Paper 1 Mark Scheme
BLANK PAGE
© UCLES 2024
Page 12 of 12
2024