Cambridge International Examinations
Cambridge Primary Checkpoint
0846/02
SCIENCE
Paper 2
October 2018
MARK SCHEME
Maximum Mark: 50
Published
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 Markers were instructed to award marks. It does not indicate the
details of the discussions that took place at an Markers’ meeting before marking began, which would have
considered the acceptability of alternative answers.
Mark schemes should be read in conjunction with the question paper and the End of Series Report.
Cambridge will not enter into discussions about these mark schemes.
This document consists of 12 printed pages.
IB18 10_0846_02/3RP
© UCLES 2018
[Turn over
salt
2(c)
Page 2 of 12
Chalk does not dissolve because it is insoluble.
blue
© UCLES 2018
Answer
mass
spring
Answer
1
1
2
Marks
1
1
Marks
Checkpoint Primary 2 Science – Mark Scheme
PUBLISHED
Sugar dissolves in water because water is a solvent.
kilograms(s)/gram(s)
2(b)
2(a)
Question
1(b)
1(a)
Question
0846/02
Ignore crystals
Ignore light / dark
each correct answer = 1 mark
Further Information
any incorrect arrows = 0 marks
Accept any downwards pointing arrow(s) on the
diagram or in the answer space
Accept kg / g
Further Information
October 2018
© UCLES 2018
3(d)
(idea that) they are different sizes
The lowest number is for straws.
Page 3 of 12
The total for papers is 24.
3(c)
The total for plastic bottles is 17.
(idea of) less litter / the bins contain litter / students are throwing
litter into the bins
where she found the litter
the type of litter
the shape of the litter
the mass of the litter
the colour of the litter
Answer
1
1
1
1
Marks
Checkpoint Primary 2 Science – Mark Scheme
PUBLISHED
3(b)
3(a)
Question
0846/02
Accept different masses or weights
Accept 12 for straws
all three correct for 1 mark
Accept other words for litter e.g. garbage / trash
more than one answer circled = 0 marks
Further Information
October 2018
© UCLES 2018
4
Question
0846/02
melting point of
0 C
colourless gas
silver liquid
attracted to a
magnet
gasoline
mercury
steel
water
pink solid
flammable liquid
white solid
property
carbon
dioxide
material
Answer
Page 4 of 12
5
Marks
Checkpoint Primary 2 Science – Mark Scheme
PUBLISHED
two or more lines from a material = 0 for this
material
each correct match = 1 mark
Further Information
October 2018
© UCLES 2018
6(c)
6(b)
6(a)
1
or
2
3
4
Page 5 of 12
will be dim / lamp will not light up / lamp will not
glow.
(Predict what will happen if the object is a bad conductor) lamp
lamp will be bright / lamp will light up / lamp will
glow.
(Predict what will happen if the object is a good conductor)
0
Answer
Beetle
5(b)
Question
(sun ) rose  aphid  beetle  bird
Answer
1
1
1
Marks
1
2
Marks
Checkpoint Primary 2 Science – Mark Scheme
PUBLISHED
5(a)
Question
0846/02
Accept lamp or bulb will not work / the lamp does
not turn on
Accept the lamp turns on
both correct = 1 mark
Accept light or bulb for lamp
one line must be longer than the other but they can
be the any thickness
more than one circled = 0 marks
Further Information
more than one organism e.g. beetle and aphid = 0
marks
all organisms in correct order = 1 mark
all three arrows in correct direction = 1 mark
arrows must have arrow heads pointing in the
correct direction (from rose to bird)
Further Information
October 2018
© UCLES 2018
6(d)
0846/02
Page 6 of 12
1
Checkpoint Primary 2 Science – Mark Scheme
PUBLISHED
more than one box ticked = 0 marks
October 2018
© UCLES 2018
9
Question
8(b)
8(a)
thermometer
reproduction
Answer
(idea of then) stays constant / stays the same
increases
Page 7 of 12
1
Marks
2
1
Marks
Question
X Y
W Z
1
Marks
1
night
day
Answer
Answer
Checkpoint Primary 2 Science – Mark Scheme
PUBLISHED
7(b)
7(a)
Question
0846/02
more than one process = 0 marks
Further Information
Accept gets hotter / becomes hot / heats up
each correct answer = 1 mark
Accept temperature probe
Further Information
part of the Earth must be within the guidelines and on
the orbit (dotted line)
all correct = 1 mark
Further Information
October 2018
© UCLES 2018
10(b)
10(a)
Question
0846/02
Two materials let most light through.
Page 8 of 12

Three materials let most light through.
Two materials are opaque.

One material is opaque.
None of the materials allow light to pass through.
All of the materials allow light to pass through.
D
B
A
C
Answer
2
2
Marks
Checkpoint Primary 2 Science – Mark Scheme
PUBLISHED
three ticks 1 correct = 0 marks
three ticks 2 correct = 1 mark
one tick = 1 mark
two ticks = 2 marks
each correct answer = 1 mark
one in correct box = 0 marks
two or three in correct boxes = 1 mark
four in correct boxes = 2 marks
Further Information
October 2018
© UCLES 2018
12(b)
12(a)
Question
11(b)
11(a)
Question
0846/02
vibrate the tuning fork harder
Page 9 of 12
This is because the tuning fork is vibrating / shaking
/ moving.
The water in the beaker vibrates / moves / rises /
increases / splashes / bubbles / shakes.
Answer
pollination / transfer of pollen (to female part or flower)
is collected from the male organ / is collected from the stamen / is
collected from the anther
pollen
Answer
1
2
Marks
1
2
Marks
Checkpoint Primary 2 Science – Mark Scheme
PUBLISHED
Accept hit the tuning fork harder / hit the tuning fork
more (than once) / add another tuning fork
Accept other words that means there is movement
each correct answer = 1 mark
Further Information
Accept pollen falls (off the insect or onto the stigma)
/ pollen is collected by the stigma
Accept examples when an insect is involved in
moving the pollen e.g. pollen is collected by the
insect = 2 marks
only award pollen mark if the context is correct e.g.
pollen is made / pollen is collected / pollen is taken
Further Information
October 2018
E
C
A
13(b)
13(c)
13(d)
© UCLES 2018
C and D
13(a)
Question
0846/02
Answer
Page 10 of 12
1
1
1
1
Marks
Checkpoint Primary 2 Science – Mark Scheme
PUBLISHED
Further Information
October 2018
© UCLES 2018
15(c)
15(b)
15(a)
Question
14
Question
0846/02
Page 11 of 12
1
Accept find the average / use more than one
Accept error carried forward from previous two
numbers i.e. the difference between these numbers
increases / goes up / is more / taller / grows
repeat / do the investigation with more seeds
one correct = 0 marks
four correct = 2 marks
4 (cm)
2
more than one answer circled = 0 marks
Further Information
reflected = 1 mark
light = 1 mark
Further Information
two or three correct = 1 mark
measuring spoon
measuring scales
measuring jug
measuring cylinder
1
Marks
2
Marks
October 2018
10 (cm)
6 (cm)
Answer
measuring beaker
is reflected (by the water)
light /sunlight / Sun
Answer
Checkpoint Primary 2 Science – Mark Scheme
PUBLISHED
© UCLES 2018
16
Question
0846/02
relax / relaxing
Page 12 of 12
Accept antagonistic
each correct statement = 1 mark
work in pairs / A and B work together / work together
contract / contracting
October 2018
Further Information
Accept by the bones moving
2
Marks
are attached to bones / to pull bones / to move the bones
any two from
Answer
Checkpoint Primary 2 Science – Mark Scheme
PUBLISHED
Cambridge International Examinations
Cambridge Primary Checkpoint
SCIENCE
0846/01
Paper 1
April 2018
MARK SCHEME
Maximum Mark: 50
Published
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 Markers were instructed to award marks. It does not indicate the
details of the discussions that took place at an Markers’ meeting before marking began, which would have
considered the acceptability of alternative answers.
Mark schemes should be read in conjunction with the question paper and the End of Series Report.
Cambridge will not enter into discussions about these mark schemes.
This document consists of 16 printed pages.
IB18 05_0846_01/5RP
© UCLES 2017
[Turn over
0846/01
Checkpoint Primary – Mark Scheme
PUBLISHED
April 2018
Annotations and abbreviations
/ OR alternate responses for the same marking point
( ) the words or units in brackets do not need to be stated
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, however, full marks can still be achieved even with the answers that are ignored
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
note provides extra information when necessary
© UCLES 2018
Page 2 of 16
0846/01
Checkpoint Primary – Mark Scheme
PUBLISHED
Question
Answer
1
Marks
solid added to water
does the solid
dissolve?
iron
(no)
salt
yes
sand
no
silver
no
sugar
yes
2
April 2018
Further Information
four correct = 2 marks
two or three correct = 1 mark
one correct = 0 marks
Question
2
Answer
Marks
Mass is measured in kilograms / kg / Kg.
2
Force is measured in newtons / N.
Weight is measured in newtons / N.
© UCLES 2018
Page 3 of 16
Further Information
three correct = 2 marks
one or two correct = 1 mark
Do not accept n for newtons
0846/01
Checkpoint Primary – Mark Scheme
PUBLISHED
Question
Answer
Marks
April 2018
Further Information
3 each correct sentence = 1 mark
3
Ignore plant for producer
Food chains start with a producer.
An animal that eats plants is called a
consumer / herbivore.
An animal that eats another animal is called a
consumer / predator / carnivore.
Question
Answer
Marks
4(a)
The drum makes a higher pitch sound when the
skin is (idea of) tighter / stretched /
pulled.
1
answer must be comparative
4(b)
The drum makes a louder sound when (idea
1
answer must be comparative
of) hit harder.
© UCLES 2018
Page 4 of 16
Further Information
0846/01
Checkpoint Primary – Mark Scheme
PUBLISHED
Question
5(a)
Answer
Marks
condensation
April 2018
Further Information
1
more than one tick = 0 marks
1
more than one tick = 0 marks
1
more than one tick = 0 marks
evaporation
filtration
magnetic attraction
5(b)

condensation
evaporation

filtration
magnetic attraction
5(c)
condensation
evaporation
filtration

magnetic attraction
© UCLES 2018
Page 5 of 16
0846/01
Checkpoint Primary – Mark Scheme
PUBLISHED
1
5(d)
April 2018
two correct ticks = 1 mark
condensation
one tick or more than two ticks = 0 marks
evaporation

filtration

magnetic attraction
Question
Answer
Marks
Further Information
6(a)
A
B
C
D
E
F
1
more than one answer circled = 0 marks
6(b)
A
B
C
D
E
F
1
more than one answer circled = 0 marks
6(c)
A
B
C
D
E
F
1
Accept B (instead of or as well as D)
more than one answer circled other than B and D =
0 marks
or
A
B
C
D
E
F
B
C
D
E
F
or
A
© UCLES 2018
Page 6 of 16
0846/01
Checkpoint Primary – Mark Scheme
PUBLISHED
Question
7(a)
Answer
Marks
1
cable cover is plastic.
April 2018
Further Information
both required for 1 mark
wire is metal.
7(b)
The cable cover is a good insulator (of
electricity).
Question
Answer
1
Marks
2
8
Further Information
three correct = 2 marks
conducts electricity
one or two correct = 1 mark
conducts heat
insoluble in water
four boxes ticked with three correct = 1 mark

magnetic
© UCLES 2018
melting point above 100 °C

non-poisonous

Page 7 of 16
four (with less than three correct), five or six
ticked boxes = 0 marks
0846/01
Question
9(a)
Checkpoint Primary – Mark Scheme
PUBLISHED
Answer
Marks
When he opens the door he uses a pulling
force.
April 2018
Further Information
1
both correct for 1 mark
1
more than one answer circled = 0 marks
When he closes the door he uses a pushing
force.
9(b)
add carpet under the door
add oil to the door
make the door bigger
make the door heavier
put a mat in front of the door
© UCLES 2018
Page 8 of 16
0846/01
Checkpoint Primary – Mark Scheme
PUBLISHED
Question
Answer
Marks
April 2018
Further Information
10(a)
37 (°C)
1
10(b)
17 (°C)
1
Accept ecf based on incorrect answer from (a)
10(c)
boils / turns into steam / stays at 100 °C / stays at
the same temperature
1
Accept the liquid becomes a gas / evaporates /
turns into water vapour
Accept it is at boiling point / (temperature) stops
going any higher
10(d)
© UCLES 2018
1
melted
Page 9 of 16
Accept melting / melt(s)
0846/01
Checkpoint Primary – Mark Scheme
PUBLISHED
Question
11(a)
Answer
C
D
A
Marks
B
2
April 2018
Further Information
four correct = 2 marks
two or three correct =1 mark
one correct = 0 marks
11(b)
© UCLES 2018
8
6
spider
insect
Page 10 of 16
2
each correct set of vertical answers = 1 mark
either order
Accept 8 and 6 for number of legs = 1 mark if no
other marks awarded
0846/01
Checkpoint Primary – Mark Scheme
PUBLISHED
Question
12
Answer
Marks
A flower / petal
1
April 2018
Further Information
all three correct = 1 mark
B leaf / leaves
C root / roots
Question
Answer
Marks
2
13
The Earth takes one year to orbit the Sun.
The Earth spins on its axis as it orbits the Sun.
© UCLES 2018
Page 11 of 16
Further Information
each correct answer = 1 mark
Accept 365 days
0846/01
Checkpoint Primary – Mark Scheme
PUBLISHED
Question
14
Answer
material
Marks
description
flammable liquid
gasoline
colourless gas
gold
green gas
mercury
attracted to a magnet
oxygen
shiny solid
silver liquid
© UCLES 2018
Page 12 of 16
4
April 2018
Further Information
each correct line = 1 mark
If two lines from a material then this is incorrect for
this material
0846/01
Checkpoint Primary – Mark Scheme
PUBLISHED
Question
15(a)
April 2018
Answer
Marks
If the material is transparent I predict light will
1
Accept you will be able to see the light (from the
flashlight)
1
more than one answer circled = 0 marks
get out (of the hole) / light will pass
through (the material).
15(b)
Further Information
light goes into our eyes
light is reflected by our eyes
light goes into the flashlight
light is reflected by the flashlight
Question
Answer
Marks
16(a)
pollen (grain)
1
16(b)
pollination
1
© UCLES 2018
Page 13 of 16
Further Information
Ignore reproduction
0846/01
Question
Checkpoint Primary – Mark Scheme
PUBLISHED
Answer
Marks
17(a)
warmth / suitable temperature
1
17(b)
bar chart / (line or bar) graph / picture / drawing /
diagram / photograph / poster
1
17(c)
On day 4 the root and stem are the same (length).
2
On day 5 the stem is longer or bigger than the
root / the root is shorter or smaller than the stem.
© UCLES 2018
April 2018
Page 14 of 16
Further Information
Accept oxygen
answer must be comparative
Accept on day 4 the root is 4 (cm) and the stem is 4
(cm) / root and stem are equal / root and stem are
both 4 (cm)
answer must be comparative
Accept on day 5 the root is 5.6 (cm) and the stem is
5.9 (cm) / stem is 0.3 (cm) longer than the root
0846/01
Checkpoint Primary – Mark Scheme
PUBLISHED
Question
18(a)
Answer
April 2018
Marks
In this position the magnets will repel.
Further Information
1
both correct for 1 mark
1
Accept S
2
three correct = 2 marks
In this position the magnets will repel.
18(b)
18(c)
south
aluminium comb
copper pipe
two correct = 1 mark
gold ring
one correct = 0 marks
iron nail
four circled three correct = 1 mark
four circled two or one correct = 0 marks
nickel coin
five or six circled = 0 marks
steel paper clip
© UCLES 2018
Page 15 of 16
0846/01
Question
Checkpoint Primary – Mark Scheme
PRE-STANDARDISATION
Answer
19
April 2018
Marks
Further Information
1
If any arrows drawn, they must point in the correct
direction
the line drawn must start at the mirror and original
ray
line drawn in this
area
© UCLES 2018
Page 16 of 16
Cambridge International Examinations
Cambridge Primary Checkpoint
SCIENCE
0846/02
Paper 2
April 2018
MARK SCHEME
Maximum Mark: 50
Published
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 Markers were instructed to award marks. It does not indicate the
details of the discussions that took place at an Markers’ meeting before marking began, which would have
considered the acceptability of alternative answers.
Mark schemes should be read in conjunction with the question paper and the End of Series Report.
Cambridge will not enter into discussions about these mark schemes.
This document consists of 14 printed pages.
IB18 05_0846_02/4RP
© UCLES 2017
[Turn over
Checkpoint Primary Science – Mark Scheme
PUBLISHED
April 2018
© UCLES 2018
Page 2 of 14
/ OR alternate responses for the same marking point
( ) the words or units in brackets do not need to be stated
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, however, full marks can still be achieved even with the answers that are ignored
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
note provides extra information when necessary
Annotations and abbreviations
0846/02
© UCLES 2018
2
Question
1(b)
1(a)
Question
0846/02
2
4
(1)
3
fertilisation
germination
pollination
seed production
Answer
Page 3 of 14
When Oliver runs the muscles in his legs move
because the muscles contract .
skin
other muscles
fat
bones
blood
Answer
1
Marks
1
1
Marks
Checkpoint Primary Science – Mark Scheme
PUBLISHED
all correct = 1 mark
Further Information
Accept shorten / relax / lengthen / stretch / move our
bones
more than one answer circled = 0 marks
Further Information
April 2018
© UCLES 2018
4(b)
4(a)
Question
3
Question
0846/02
Page 4 of 14
they stay still to keep warm
they sometimes flap to keep cool
they are grey to keep cool
they are covered in hair to keep warm
they are covered in hair to keep cool
it is camouflaged
Answer
telescope
mirror
microscope
magnifying glass
glass block
Answer
1
1
Marks
1
Marks
Checkpoint Primary Science – Mark Scheme
PUBLISHED
more than one answer circled = 0 marks
Further Information
more than one answer circled = 0 marks
Further Information
April 2018
This process is freezing.
This process is condensation.
5(c)
5(d)
© UCLES 2018
(idea that the string) changes shape / goes floppy /
goes down / moves down / loosen(s) / slacken(s) /
relax(es) / not tight / less tight / not stretched
(anymore)
6(b)
Page 5 of 14
(because) less force / less pull (force)
Pull is an example of a force.
6(a)
Answer
This process is evaporation.
5(b)
Question
This process is melting.
Answer
2
1
Marks
1
1
1
1
Marks
Checkpoint Primary Science – Mark Scheme
PUBLISHED
5(a)
Question
0846/02
Accept Mia isn’t pulling the string / weaker force /
Mia is not using force
correct reason = 1 mark
correct change = 1 mark
Accept different types of pulling force e.g. action
force / muscular force / elastic force
Further Information
Accept solidification
Further Information
April 2018
© UCLES 2018
7(b)
7(a)
Question
0846/02
weighing scales
stop clock
sound meter
ruler
light meter
forcemeter
Page 6 of 14


conclusion data evidence prediction results
Answer
2
1
Marks
Checkpoint Primary Science – Mark Scheme
PUBLISHED
more than three ticks = 0 marks
three ticks, one correct = 0 marks
three ticks, two correct = 1 mark
each correct tick = 1 mark
more than one answer circled = 0 marks
Further Information
April 2018
© UCLES 2018
7(c)
0846/02
Use a ruler to draw the table of results.

Page 7 of 14
Use a different stick in the ground each time.
Push the stick into the ground before measuring.
Measure from the same point to the end of the
shadow each time.
Label the axes of the graph correctly.
1
Checkpoint Primary Science – Mark Scheme
PUBLISHED
more than one tick = 0 marks
April 2018
© UCLES 2018
9(b)
9(a)
Question
8
Question
0846/02
Saturn
0
1
2
Answer
3
Page 8 of 14
4
breathes out carbon dioxide
moves oxygen to the brain
pumps blood to the feet
keeps the blood moving
Answer
1
1
Marks
1
Marks
Checkpoint Primary Science – Mark Scheme
PUBLISHED
more than one answer circled = 0 marks
Further Information
more than one answer circled = 0 marks
Further Information
April 2018
© UCLES 2018
11
Question CPS00680
10(b)
10(a)
Question
0846/02
2
light and moist
1
2
3
4
5
6
7
8
9
Answer
condition
dark and dark and light and light and
moist
dry
moist
dry
1
light and dry
0
6
dark and moist
Further Information
one word correct = 0 marks
three words correct = 2 marks
ecf from (a)
Accept any order
Accept label inside the bar
all bars labelled correctly = 1 mark
The light reaches Carlos and enters his eye(s).
Page 9 of 14
April 2018
all bars drawn correctly = 1 mark (plotting must
touch the line)
all correct = 1 mark
Further Information
two words correct = 1 mark
2
Marks
2
1
Marks
The surface of the book reflect(s) the light.
The lamp produces ray(s) of light.
number of
woodlice
3
dark and dry
10
number of
woodlice
condition
Answer
Checkpoint Primary Science – Mark Scheme
PUBLISHED
© UCLES 2018
13(b)
13(a)
Question
12(b)
flowering
12(a)
Page 10 of 14
The function of organ B is to store urine.
The function of organ A is to filter blood /
clean the blood.
B – bladder
A – kidney
Answer
spreads the seeds / disperses the seeds /allows
the seeds space (to germinate) / prevent
overcrowding / to stop too many seeds in one
place
seed production
seed dispersal
pollination
germination
Answer
2
2
Marks
1
1
Marks
Checkpoint Primary Science – Mark Scheme
PUBLISHED
Question
0846/02
each correct answer = 1 mark
each correct answer = 1 mark
Further Information
Accept idea of reducing competition
Accept ‘plants’ or ‘poppies’ for seeds
more than one answer circled = 0 marks
Further Information
April 2018
more can dissolve at (higher temperatures)
15(d)
Page 11 of 14
to make investigation or results (more) reliable
15(c)
© UCLES 2018
1
20 C / the same
15(b)
1
1
1
Marks
1
1
Marks
25 cm3 / the same
Answer
vitamins
teething gel
rash cream
painkiller
cough medicine
breathing in / inhaling
Answer
Checkpoint Primary Science – Mark Scheme
PUBLISHED
15(a)
Question
14(b)
14(a)
Question
0846/02
Accept to check results
Further Information
more than one answer = 0 marks
Accept through her lungs / breathes / to her lungs
Further Information
April 2018
© UCLES 2018
17
Page 12 of 14
melting ice cream
frying an egg
burning a match
baking bread
Answer
put fingers on the holes / remove fingers from the
holes / use a longer recorder / use a shorter
recorder
16(b)
Question
The air inside the recorder vibrates.
Answer
1
Marks
1
1
Marks
Checkpoint Primary Science – Mark Scheme
PUBLISHED
16(a)
Question
0846/02
more than one answer = 0 marks
Further Information
Further Information
April 2018
© UCLES 2018
18(c)
18(b)
18(a)
Question
0846/02
gold
hydrogen
carbon dioxide
magnesium
sulfate
Page 13 of 14
does it have a high or a low melting point?
paraffin
mercury
marble
iron
insoluble
materials
soluble
materials
is it solid, liquid or a gas?
iron
Answer
Marks
Further Information
2
2 each correct column = 1 mark
1 more than one answer = 0 marks
Checkpoint Primary Science – Mark Scheme
PUBLISHED
April 2018
20
40
60
80
grasshopper
rat
mosquito
dragonfly
animal plankton
sardine
20(b)
Answer
Page 14 of 14
Graphite is a good electrical conductor.
0
rat
snake
dragonfly
frog
sardine
tuna
© UCLES 2018
Answer
Marks
Marks
Further Information
April 2018
Further Information
1 any two correct = 1 mark
1 any two correct = 1 mark
1
1 more than one answer circled = 0 marks
1 Accept goes down / becomes less / becomes dim /
lowers / dimmers / is less / dims / goes low
Checkpoint Primary Science – Mark Scheme
PUBLISHED
As the distance increases the brightness of the
lamp decreases.
20(a)
Question
19(c)
19(b)
19(a)
Question
0846/02
Cambridge Primary Progression Test
Science mark scheme
Stage 6
SCIENCE_MS_S6_8RP
© UCLES 2018
2
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 a phonetically correct answer,
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 gramatically 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
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
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 2018
S/S6/MS
3
Stage 6 Paper 1 Mark scheme
Question
1
Part
Mark
Answer
3
material
Total
3
Question
2
Part
Mark
3
electrical
conductor
copper

graphite

Further Information
electrical
insulator
five correct = 3 marks
three or four correct = 2
marks
one or two correct = 1 mark
plastic

rubber

wood

Answer
Further Information
six correct = 3 marks
brain
four or five correct = 2 marks
lung
heart
kidney
Total
© UCLES 2018
two or three correct = 1 mark
stomach
one correct = 0 marks
small
intestine
Do not accept large intestine
3
S/S6/MS
[Turn over
4
Question
3
Part
Mark
1
Answer
Further Information

add another cell
more than one box
ticked = 0 marks
Accept any indication of the
correct answer, e.g. circling
or underlining but ticks take
precedence
add another lamp
add a switch
make the wire longer
Total
1
Question
4
Part
Mark
Answer
(a)
1
fair test / you could dissolve different
amounts if the water was hotter or colder
(b)
1
so results can be checked / to get more
reliable results
(c)
3
Further Information
Accept in case a result is
wrong
correct scale = 1 mark
30
y-axis labelled = 1 mark
(total) 20
mass
of solid
(added)
in g 10
0
(d)
1
Total
6
© UCLES 2018
all three bars correct and
labelled = 1 mark
(sugar)
fertiliser
fertiliser
S/S6/MS
salt
baking
powder
5
Question
5
Part
Mark
(a)
Answer
2
Further Information
food chain in correct
order = 1 mark
this mark is independent of
the arrows
owl
snake
all arrows in correct direction
(from leaf to owl) = 1 mark
bird
caterpillar
leaf
(b)
1
Total
3
Question
6
Part
Mark
(a)
1
leaf
Accept plant / tree / any
named plant or tree
Answer
salt
sand
salt and sand
Further Information
water
more than one answer
circled = 0 marks
Accept any indication of the
correct answer, e.g. ticking or
underlining but circling takes
precedence
(b)
1
Total
2
© UCLES 2018
salt
Accept wet salt
S/S6/MS
[Turn over
6
Question
7
Part
Mark
(a)
Answer
each correct sentence = 1
mark
3
(b)
1
Total
4
Question
8
Part
Mark
Further Information
Mass is measured in kilograms.
Accept kg
Weight is measured in newtons.
Accept N
Do not accept n
Force is measured in newtons.
Accept N
Do not accept n
Answer
Further Information
(a)
1
C
(b)
1
heat it
Accept evaporate / leave in
the Sun
(c)
2
D
correct solid = 1 mark
because it fizzes
correct reason linked to
correct solid = 1 mark
or
E
because it gets colder
Total
© UCLES 2018
4
S/S6/MS
7
Question
9
Part
Mark
(a)
2
Answer
Further Information
Ignore just to keep Mike alive
any two from
does the work his own heart normally does /
takes the place of Mike’s heart
pumps blood
supplies oxygen
supplies food
to organs / around the body
(b)
1
Total
3
Question
10
Part
Mark
1
(idea that) (batteries on the) machine he is
using may stop working / the machine he is
using may go wrong
Ignore just to keep Mike alive
Answer
Further Information
statement
explanation
… friction in the dip
increases its movement.
A rollercoaster is
able to climb up
the hill because…
more than one line to an
explanation = 0 marks
… its movement gives it
the energy to get to the
top of the hill.
… there is no friction.
… there is no air
resistance in the dip.
Total
© UCLES 2018
1
S/S6/MS
[Turn over
8
Question
11
Part
Mark
(a)
1
Answer
paper / card / cardboard / cloth
Further Information
Accept named items that
can be recycled, e.g. books
/ magazines / clothes /
batteries / ink cartridges
Ignore glass / plastic or
named plastic / metal or
named metal
(b)
2
This diaper (nappy) cannot be recycled
because (idea of) it is dirty / it is
each correct sentence = 1
mark
toxic / (may) contain microbes /
made of material that cannot be
recycled.
To reduce waste in the environment this
diaper (nappy) can be composted
/ biodegradable / made of
material that can be washed.
Total
© UCLES 2018
3
S/S6/MS
Ignore burnt
9
Question
12
Part
Mark
(a)
2
Answer
Further Information
The solvent in sugar water is water.
three correct = 2 marks
The solute in sugar water is sugar /
soluble.
one or two correct = 1 mark
Sugar dissolves in water because it is
soluble.
(b)
1
no
sometimes
yes
more than one answer
circled = 0 marks
Accept any indication of the
correct answer, e.g. ticking or
underlining but circling takes
precedence
Total
© UCLES 2018
3
S/S6/MS
[Turn over
10
Question
13
Part
Mark
(a)
2
Answer
D
A
C
B
four correct = 2 marks
two or three correct = 1 mark
one correct = 0 marks
(b)
1
steel
(c)
1
metals conduct electricity
Total
4
© UCLES 2018
Further Information
S/S6/MS
ora
11
Question
14
Part
Mark
(a)
1
(b)
2
(c)
1
Answer
Further Information
measuring cylinder
Do not accept beaker / jug /
bottle / cup
tap number
volume
in cm3
1
0.0
2
1.8
3
2.9
4
3.8
5
3.3
tap 1
tap 2
tap 3
tap 4
seven correct = 2 marks
four, five or six
correct = 1 mark
one, two or three correct = 0
marks
Accept volume or cm3 in the
heading of the table
Accept 0 for 0.0
tap 5
and
0.0 is not a volume / there is no volume /
tap (faucet) does not have drips / all the
others have a volume
Total
© UCLES 2018
Accept any indication of the
correct answer, e.g. ticking or
underlining but circling takes
precedence
Correct answer and
explanation for one mark
4
S/S6/MS
[Turn over
12
Question
15
Part
Mark
Answer
(a)
1
When the toy bounces up the upward
force is bigger / larger / greater /
stronger than the downward force.
(b)
1
increase the weight of the toy
Further Information
more than one answer
circled = 0 marks
push on the spring all of the time
push on the spring less often
push on the spring more
often
Accept any indication of the
correct answer, e.g. ticking or
underlining but circling takes
precedence
use a longer spring
Total
2
Question
16
Part
Mark
Answer
Further Information
(a)
1
particles of sand (and copper sulfate) are
too small
Accept if the particles of
sand and copper sulfate are
the same size
(b)
1
sand
Ignore water
(c)
1
copper sulfate (solution)
(d)
1
blue
Total
4
© UCLES 2018
S/S6/MS
13
Stage 6 Paper 2 Mark scheme
Question
1
Part
Mark
4
Answer
body system
major organ
excretory
(kidneys)
circulatory
heart
respiratory
lung(s)
nervous
brain
stomach /
(small) intestine
digestive
Total
4
Question
2
Part
Mark
(a)
2
Further Information
Answer
name of
solid
clay
results after
one minute
each correct = 1 mark
Do not accept large intestine
Further Information
soluble or insoluble
insoluble
three correct = 2 marks
two correct = 1 mark
one correct = 0 marks
(b)
1
Total
3
© UCLES 2018
chalk
(insoluble)
salt
soluble
copper
insoluble
it dissolves / forms a solution / forms a
colourless liquid
S/S6/MS
Accept forms a clear
liquid / no solid left in
the beaker / solid has
disappeared
[Turn over
14
Question
3
Part
Mark
Answer
Further Information
All friction forces opposing
motion
3
six correct = 3 marks
four or five correct = 2 marks
two or three correct = 1 mark
one correct = 0 marks
Total
3
Question
4
Part
Mark
Answer
(a)
1
fair test / to compare
(b)
1
ruler / rule / measuring tape
(c)
1
If the wire is a good conductor the bulb will
be bright (er) / lit up / on.
Total
3
© UCLES 2018
S/S6/MS
Further Information
15
Question
5
Part
Mark
4
Answer
change
Further Information
reversible irreversible

baking bread
Total
4
Question
6
Part
Mark
2
Total
© UCLES 2018
condensing water
vapour

boiling water

eight correct ticks = 4 marks
six or seven correct
ticks = 3 marks
four or five correct
ticks = 2 marks
burning wood

three correct ticks = 1 mark
digesting food

rusting of iron

one or two correct ticks = 0
marks
filtering sand and
water

dissolving salt

If there are two ticks in one
row it is incorrect
Answer
Further Information
word
meaning
consumer
an animal that eats
another animal
predator
an animal that eats
plants
prey
a plant at the start
of a food chain
producer
an animal that gets
eaten by another
animal
three correct = 2 marks
one or two correct = 1 mark
more than one line from a
word = 0 marks for that word
2
S/S6/MS
[Turn over
16
Question
7
Part
Mark
Answer
(a)
1
not many left / endangered species / many
are dying / being hunted / being poached
Accept idea of tourism
(b)
2
any two from
Accept other things humans
can do to protect the
mountain gorilla
Further Information
protect the habitat / set up conservation
areas
stop hunting / stop poaching
do not buy mountain gorilla products
breeding programme
education
collect money (to help) / adopt a mountain
gorilla
Total
3
Question
8
Part
Mark
2
Answer
keep the angle of the slope
the same
each correct answer = 1
mark
repeat each test five times
three ticks, two correct = 1
mark
start the marble from the
same place each time

use the same marble

wear safety spectacles
write the results in a table
Total
© UCLES 2018
Further Information
2
S/S6/MS
two incorrect ticks = 0 marks
Accept any indication of the
correct answer, e.g. circling
or underlining but ticks take
precedence
17
Question
9
Part
Mark
(a)
2
Answer
Further Information
salt will dissolve in water
each correct answer = 1
mark
chalk will not dissolve in water
(b)
2
each correct label = 1 mark
filter paper
Do not accept paper for filter
paper
(filter) funnel
(c)
2
pieces have a bigger particle size (than
powder)
Accept pieces are bigger /
powder is smaller
Accept powder goes through
(sieve) but pieces do not
Accept copper for pieces
and steel for powder
both are insoluble / both do not dissolve
(in water)
Ignore just they both stay on
the filter paper
each correct answer = 1
mark
Total
6
Question
10
Part
Mark
Answer
Further Information
(a)
1
arrow(s) or symbol of an arrow 
Accept an arrow drawn in
the picture
(b)
1
feeding relationships / (idea of) what
eats what
Accept energy flow
Total
2
© UCLES 2018
S/S6/MS
[Turn over
18
Question
11
Part
Mark
1
Total
1
Question
12
Part
Mark
(a)
1
Answer
Further Information
sun
Accept sunlight / light
Answer
idea
Further Information
true or false
I can pull down on the toy
gently.
both correct = 1 mark
Accept  or yes or T for true
true
If I let go then the toy will not
bounce up very high.
I think that the toy will stop
bouncing.
true
This is because of the force of
friction.
(b)
more than one tick = 0 marks
1
20 bounces and then divide by 10
Accept any indication of the
correct answer, e.g. circling
or underlining but ticks take
precedence
10 bounces and then divide by 20
20 bounces and then divide by 20
5 bounces and then divide by 10
10 bounces and then divide by 5.
Total
© UCLES 2018
2
S/S6/MS

19
Question
13
Part
Mark
(a)
1
Answer
kilogram(s) / gram(s)
Further Information
Accept Kg or kg or g
Accept answer in table but
answer line takes precedence
(b)
1
newton
Accept N
Do not accept n
(c)
1
(idea that they) looked more carefully
through the rubbish / learnt about new
materials to recycle / collected recycling
materials from friends
Accept any suitable reason
for the increase, e.g. recycled
just paper to start with and
then added plastic to their
collection
(d)
1
any number in the range 3.9 to 5.0
Accept answer in table but
answer line takes precedence
Total
4
Question
14
Part
Mark
(a)
1
(b)
2
Answer
cell or battery
aluminium
copper
nylon
rubber
steel
string
(c)
1
Total
4
© UCLES 2018
Further Information
(answer) C
three correct = 2 marks
one or two correct = 1 mark
three correct and one
incorrect = 1 mark
two correct and two incorrect
= 0 marks
Accept any indication of the
correct answer, e.g. ticking or
underlining but circling takes
precedence
Accept answer on diagram
but answer line takes
precedence
S/S6/MS
[Turn over
20
Question
15
Part
Mark
3
Answer
Further Information
(idea that it) protects from the outside / acts
as a barrier
Accept protection from the
sun for two marks
any three from
(idea that it) keeps all the other organs
inside the body
keeps dirt out / keeps germs out / keeps
bacteria out
waterproof / stops water getting into the
body
stops you drying out / stops you losing too
much water
Total
3
Question
16
Part
Mark
is a sense organ / sense of touch / (idea of)
feeling things
Accept senses heat / senses
cold / senses pain for two
marks
Answer
Further Information
(a)
1
thermometer
Accept temperature probe
(b)
1
use the same volume of water / use the
same mass of carrot / use the same size of
carrot / use the same type of carrot
Do not accept use the same
temperature
(c)
1
As the temperature of the water increases
Accept (carrot) cooks faster
time (to cook carrot) decreases.
(d)
1
Total
4
© UCLES 2018
any time more than 90 (minutes)
S/S6/MS
21
BLANK PAGE
© UCLES 2018
S/S6/MS
22
BLANK PAGE
Copyright © UCLES, 2018
Cambridge Assessment International Education is part of the Cambridge Assessment Group.
Cambridge Assessment is the brand name of the University of Cambridge Local Examinations Syndicate (UCLES), which itself is a department of the University
of Cambridge.
Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every
reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the
publisher will be pleased to make amends at the earliest possible opportunity..
© UCLES 2018
S/S6/MS
Cambridge Primary Sample Test
For use with curriculum published in
September 2020
Science Paper 1
Mark Scheme
Stage 6
Science_S6_01_MS/9RP
© UCLES 2020
S6/01
Science Stage 6 Paper 1 Mark Scheme
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.
From 2020
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.
ecf
Note
Ignore
Do not accept
Accept
underline
( ) brackets
/ OR
error carried forward; marks are awarded if an incorrect response has
been carried forward from earlier working, provided the subsequent
working is correct
provides extra information when necessary
indicates an irrelevant answer that is not creditworthy. Full marks
can still be achieved even with answers that are ignored.
indicates an incorrect response that would contradict another
otherwise correct alternative
an acceptable response
exact word is required
the words or units in brackets do not need to be stated, for example,
(recycles or releases or provides) minerals = minerals scores the mark
alternate responses for the same marking point
Annotations and abbreviations
ora
Page 2 of 12
or reverse argument; for example, as mass increases, volume increases
could be written as mass decreases, volume decreases
© UCLES 2020
S6/01
Science Stage 6 Paper 1 Mark Scheme
Question
Answer
From 2020
Mark
Further information
1(a)
pumps blood
1
1(b)
artery / arteries
1
1(c)
vein(s)
1
1(d)
the blood goes through the heart twice during one circuit
1 Accept goes to the lungs, to the heart, to the
body, to the heart, before going back to lungs /
has two circuits
Accept one side pumps blood to the lungs the
other side pumps blood to the body
1(e)
to transport oxygen / transport nutrients / transport waste
1 Accept carries oxygen / nutrients / waste
Accept to transport sugar / transport glucose /
transport carbon dioxide etc. / clotting / defense
against pathogens
© UCLES 2020
Page 3 of 12
S6/01
Science Stage 6 Paper 1 Mark Scheme
Question
2(a)
Answer
Mark
liquid to gas
From 2020
Further information
1 Accept vapour for gas
Ignore evaporation
2(b)
temperature at which a liquid becomes a gas / the highest
temperature a liquid can be (before it becomes a gas)
1 Note answer must include reference to
temperature
2(c)
thermal conductivity / colour / solubility
1 Accept mass / density
Accept other properties
2(d)
© UCLES 2020
bromine has a melting point lower / less than room
temperature and a boiling point greater / more /
higher than room temperature
Page 4 of 12
1 both required for the mark
S6/01
Science Stage 6 Paper 1 Mark Scheme
Question
3(a)
Answer
From 2020
Mark
Further information
3 Note if any incorrect arrows maximum 2 marks
all rays of light drawn as straight lines = 1 mark
Note line must not touch the edge of the
periscope and must show a reflection (change of
direction) at the plane mirror
continuation of light ray from top plane mirror to touch the
bottom plane mirror = 1 mark
Note light ray should touch the diagram of
Blessy’s eye
light ray entering the eye = 1 mark
plane
mirror
ray of light
light source
periscope
wall
Blessy’s
eye
plane mirror
3(b)
© UCLES 2020
reflection
1
Page 5 of 12
S6/01
Science Stage 6 Paper 1 Mark Scheme
Question
Answer
Mark
From 2020
Further information
4 each correct process = 1 mark
4
process
description
A
erosion and sedimentation
B
heat and pressure
Accept for C made into small particles which are
cemented together
C
erosion and sedimentation
Accept for C weathering for erosion
Accept compaction for sedimentation
Ignore for C transportation / references to air and
water
© UCLES 2020
D
melting / heating
Do not accept for D reference to under pressure
E
melting / heating
Do not accept for E reference to under pressure
F
solidification / cooling /
crystallisation
Page 6 of 12
S6/01
Science Stage 6 Paper 1 Mark Scheme
Question
5(a)
Answer
Mark
From 2020
Further information
2 each correct answer = 1 mark
any two from
use insect repellant
Accept any locally acceptable answers
cover up skin with clothing
Ignore do not go there
sleep under a net
wear light coloured clothing
avoid long grass / keep to footpaths
avoid times of day when insects are more active
avoid insect breeding sites
5(b)
2 each correct answer = 1 mark
any two from
Accept named examples of other organisms but
ignore named diseases
virus
parasite
fungi
© UCLES 2020
Page 7 of 12
S6/01
Science Stage 6 Paper 1 Mark Scheme
Question
6(a)
Answer
From 2020
Mark
more sugar cubes will dissolve the higher the temperature
because the particles have more energy / particles are
moving faster / more collisions with sugar cubes
Further information
2 ora
Accept larger spaces between (water) particles
Accept prediction and explanation anywhere in
the answer
Accept reference to water molecules or particles
in the answer
6(b)
measuring cylinder
1 Do not accept beaker
6(c)
thermometer
1 Accept temperature probe
6(d)
for a fair test
1 Accept changing the volume of water will change
number of cubes that will dissolve / volume of
water is a control variable
Do not accept more accurate, more reliable,
more precise
6(e)
© UCLES 2020
number of sugar cubes (dissolved)
1 Accept amount of sugar (dissolved)
Page 8 of 12
S6/01
Science Stage 6 Paper 1 Mark Scheme
Question
7(a)
Answer
Mark
From 2020
Further information
2 each similarity = 1 mark
any two from
both have switches
both have (at least one) lamp
both are series circuits
7(b)
2 each difference = 1 mark
any two from
switch closed in A / switch open in B
Accept one has switch open the other closed /
only one circuit has switch open / only one circuit
has switch closed
2 lamps in A / one lamp in B
Accept have different number of lamps / one
circuit has two lamps and the other one lamp
no buzzer in A / buzzer in B
Accept one circuit has a buzzer / one circuit does
not have a buzzer
lamps only on in circuit A / lamp off in B
© UCLES 2020
Page 9 of 12
S6/01
Science Stage 6 Paper 1 Mark Scheme
Question
Answer
From 2020
Mark
Further information
8(a)
F
1 Accept Uranus
8(b)
Neptune
1 Ignore planet E
8(c)
A
1
8(d)
no
1 answer yes = 0 marks
and
answer must have both no and an explanation
any piece of information to support the answer no, e.g. the
biggest planet (H) is not furthest away
© UCLES 2020
Page 10 of 12
S6/01
Science Stage 6 Paper 1 Mark Scheme
Question
Answer
From 2020
Mark
Further information
9(a)
10.2
1 Ignore any units given
9(b)
kilogram / kg
1 Accept gram / g
Accept the answer in the table but the answer
line takes precedence
9(c)
newton / N
1 Do not accept n
Accept the answer in the table but the answer
line takes precedence
9(d)
weight is a force (due to gravity of the mass) / mass is the
amout of matter the object has
1
9(e)
gravity is smaller (on the Moon)
1 Note assume answer refers to the Moon
Accept ora if Earth specified
© UCLES 2020
Page 11 of 12
S6/01
Science Stage 6 Paper 1 Mark Scheme
BLANK PAGE
© UCLES 2020
Page 12 of 12
From 2020
Cambridge Primary Sample Test
For use with curriculum published in
September 2020
Science Paper 2
Mark Scheme
Stage 6
Science_S6_02_MS/10RP
© UCLES 2020
S6/02
Science Stage 6 Paper 2 Mark Scheme
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.
From 2020
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.
Note
Ignore
Do not accept
Accept
underline
( ) brackets
/ OR
error carried forward; marks are awarded if an incorrect response has
been carried forward from earlier working, provided the subsequent
working is correct
provides extra information when necessary
indicates an irrelevant answer that is not creditworthy. Full marks
can still be achieved even with answers that are ignored.
indicates an incorrect response that would contradict another
otherwise correct alternative
an acceptable response
exact word is required
the words or units in brackets do not need to be stated, for example,
(recycles or releases or provides) minerals = minerals scores the mark
alternate responses for the same marking point
Annotations and abbreviations
ecf
or reverse argument; for example, as mass increases, volume increases
could be written as mass decreases, volume decreases
Page 2 of 10
ora
© UCLES 2020
S6/02
Science Stage 6 Paper 2 Mark Scheme
Question
1(a)
Answer
From 2020
Marks
Further Information
1 both needed for 1 mark
snake and wild cat
Accept any order
1(b)
mouse, rabbit and goat
1 all three needed
Accept any order
1(c)
grass  mouse  snake  kite
2 correct organisms in this or the reverse order = 1
mark
arrows in the correct direction = 1 mark
1(d)
poison inside rabbit eaten by wild cat or jackal then eaten by
lion
Question
2(a)
Answer
1 Accept poison moves through the food web or
chain to the last animal
Marks
A, C and E
Further Information
2 all three correct = 2 marks
two correct = 1 mark
one incorrect = 1 mark maximum
two incorrect = 0 marks
Accept any order
2(b)
hydrogen / magnesium chloride
1
2(c)
temperature change / releases heat
1 Accept colour change / gives off energy / makes
a gas / it is irreversible / a new substance has
been made, e.g. smoke, carbon dioxide
© UCLES 2020
Page 3 of 10
S6/02
Science Stage 6 Paper 2 Mark Scheme
Question
3(a)
Answer
Marks
weight
3(b)
From 2020
Further Information
1
1 Accept any indication of the correct answer, e.g.
underlining or ticking but circling takes
precedence
remains constant
decreases
more than one answer circled = 0 marks
increases
3(c)
weight and upthrust
Question
1 either order
Answer
Marks
Further Information
4(a)
melting is a reversible process because the liquid
formed can be changed into a solid by cooling /
freezing / reducing the temperature.
2 each correct answer = 1 mark
4(b)
both involve liquid changing into a gas or vapour
1
4(c)
any two from
2 each correct answer = 1 mark
evaporation takes place at all temperatures
boiling only happens at one temperature / boiling only
happens at the boiling point
evaporation takes place at the surface of the liquid
boiling takes place everywhere within the liquid
© UCLES 2020
Page 4 of 10
S6/02
Science Stage 6 Paper 2 Mark Scheme
Question
5(a)
5(b)
Answer
Marks
name of
child
gender
age of child in
years
Priya
female
11
heart rate in
bpm
67
Mia
female
11
70
Lily
female
10
73
Safia
female
10
72
Mike
male
11
78
Oliver
male
11
75
Chen
male
10
87
Ahmed
male
10
80
boys have a higher heart rate
Further Information
3 heading for heart rate and units only in column
heading and not in body of the table = 1 mark
correct ages entered = 1 mark
correct heart rates entered = 1 mark
2 ora
Accept ecf for trends from (a)
younger boys have a higher heart rate / younger girls have
a higher heart rate
© UCLES 2020
From 2020
Page 5 of 10
ora
Do not accept younger children have a higher
heart rate
S6/02
Science Stage 6 Paper 2 Mark Scheme
Question
6(a)
Answer
From 2020
Marks
humus
Further Information
1
2 each correct answer = 1 mark
6(b)
Accept loam or silt
clay
sand
Accept air / rock or stones / (dead) animals
Accept minerals / inorganic material
Question
7(a)
Answer
Marks
balance
Further Information
1 Accept scale(s)
Ignore reference to electronic, lever arm or triple
beam etc.
Do not accept weighing balance or weighing
scales
7(b)
no
1
and
the biggest / heaviest mass floats
7(c)
© UCLES 2020
make the cube hollow / make it boat shaped
Page 6 of 10
1 Accept a diagram of the shape
S6/02
Science Stage 6 Paper 2 Mark Scheme
Question
8(a)
Answer
Marks
use hot water / stir the mixture
From 2020
Further Information
1 Accept use heat
Accept grind the salt up / use finer salt / use
smaller grains of salt
2 each tick = 1 mark
8(b)
particles of salt are not moving
one incorrect tick = maximum 1 mark
water particles surround salt particles

water particles are moving

salt particles are in a regular pattern
© UCLES 2020
Page 7 of 10
two incorrect ticks = 0 marks
S6/02
Science Stage 6 Paper 2 Mark Scheme
Question
9(a)
Answer
Marks
metamorphic
From 2020
Further Information
2 each correct answer = 1 mark
igneous
9(b)
A and D
1 both needed in any order
Accept other indications of the correct answer
shown in the table but the answer line takes
precedence
any other letter = 0 mark
9(c)
2 each correct answer = 1 mark
any two from
dead animals / dead plants
trapped within sediment / buried by sediment
soft parts decompose / soft parts rot away
minerals replace the bones / mineralisation
Question
10(a)
Answer
Marks
The percentage of carbon dioxide in exhaled air is
greater / higher / more than in inhaled air.
Further Information
1 both sentences needed
The percentage of water vapour in exhaled air is
greater / higher / more than in inhaled air.
10(b)
© UCLES 2020
oxygen (in the lungs) has moved into the blood
Page 8 of 10
1 Accept used in respiration
S6/02
Science Stage 6 Paper 2 Mark Scheme
Question
Answer
11(a)
Marks
Pierre’s
eye
From 2020
Further Information
1 straight line to the eye from the end of the first ray
of light
Note line should touch the eye
Note any extra arrows shown in diagram must be
correct
air
water
ray of light
1 Accept other ways of showing correct answer,
e.g. underlining or ticking but circle takes
precedence
11(b)
condensation
evaporation
more than one answer circled = 0 marks
reflection
refraction
© UCLES 2020
Page 9 of 10
S6/02
Science Stage 6 Paper 2 Mark Scheme
BLANK PAGE
© UCLES 2020
Page 10 of 10
From 2020
Science
Stage 6
Paper 1
Cambridge Primary Progression Test
Mark Scheme
3134_01_MS_7RP
© UCLES 2022
2022
S6/01
Science Stage 6 Paper 1 Mark Scheme
2022
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 2022
Page 2 of 10
Page 3 of 10
there is no colour change / stays a colourless solution
there are no gas bubbles
Note the marking points are independent of each
other so the incorrect letter could still get 2 marks
if the reasons are correct
3 correct letter = 1 mark
1
Further Information
the temperature stays the same / there is no temperature
change
Marks
2 each correct answer = 1 mark
1 Accept forces blood around the body
Accept any order
3 each correct answer = 1 mark
Further Information
each correct reason = 1 mark, maximum 2 marks
E
2(b)
Answer
Marks
2022
any two from
B
waste / urea
2(a)
© UCLES 2022
Answer
Science Stage 6 Paper 1 Mark Scheme
nutrients / glucose / amino acids / sugar
oxygen
any two from
1(c)
capillary / capillaries
vein / veins
artery / arteries
pump(s) blood
Question
Question
1(b)
1(a)
S6/01
© UCLES 2022
3(d)
refraction
Page 4 of 10
1
Ignore any arrows on diagram
Note lines not drawn with a ruler is a maximum of
2 marks
ray changes direction (when leaving the block)
3 each correct answer = 1 mark
1
Accept other lines that are reflections but do not
obey the law of reflection
Note judge the reflected line by eye but it must be
a continuous line
1 Ignore any arrows on diagram
Further Information
Note mark each marking point independently
ray changes direction (when entering the block)
3(c)
Marks
2022
straight line through the block
reflection
3(b)
Answer
straight line reflected at the plane mirror
Question
Science Stage 6 Paper 1 Mark Scheme
3(a)
S6/01
© UCLES 2022
4(c)
Page 5 of 10
the toxic substance will follow the same path/passes down
the food chain to the buzzard and is toxic to the buzzard
berries are eaten by an animal and then the next animal and
finally by the buzzard
correct arrows = 1 mark
correct order = 1 mark
fruit / berries  mouse  snake  buzzard
4(b)
Answer
energy (transfer)
Question
Marks
Science Stage 6 Paper 1 Mark Scheme
4(a)
S6/01
Accept correct arrows even if an incorrect food
chain is given, i.e. answer with three or five
organisms
Accept higher level answers
Accept correctly named animals that have eaten
the berries and then been eaten by the buzzard
2 Accept buzzard eats animals that have eaten the
greenfly that have been killed
2
1 Ignore who eats who / food
Further Information
2022
X
any value equal to or above 36 (cm3)
5(d)
5(e)
Page 6 of 10
volume of water collected / volume of water in measuring
cylinder
5(c)
© UCLES 2022
fair test / it is a control variable
5(b)
Answer
16
Question
Marks
Science Stage 6 Paper 1 Mark Scheme
5(a)
S6/01
1 Do not accept value above 50 cm3
more than one answer circled = 0 marks
Accept any indication of the correct answer, e.g.
ticking or underlining, but circling takes
precedence
1 Accept ecf from reading in (a)
1 Note just volume of water is not sufficient
1 Do not accept to make it reliable or more
accurate
Ignore any units given in the table
Accept correct answer anywhere in the question,
but table takes precedence
1 Accept 16.0
Further Information
2022
increase reliability
the salt dissolves too fast / the time taken is too short / there
is more of a safety risk with very hot water
6(d)
6(e)
Page 7 of 10
line graph
6(c)
© UCLES 2022
as temperature increases the (water) particles move faster /
as temperature increases the water particles surround the
salt particles faster
6(b)
Answer
as temperature increases the time gets less
Question
Marks
Science Stage 6 Paper 1 Mark Scheme
6(a)
S6/01
1
Ignore make it more accurate
Do not accept fair testing
1 Accept can check results / can take averages
more than one answer circled = 0 marks
1 Accept any indication of the correct answer, e.g.
ticking or underlining, but circling takes
precedence
1 Accept ora
1 Accept ora
Further Information
2022
Question
© UCLES 2022
7(b)
7(a)
S6/01
1
2
2
1
3
buzzer
cell
closed switch
open switch
lamp
Page 8 of 10
(idea that) there is only one pathway from one side of the
cell to the other side of the cell
and
series
number of components
in the circuit
component
Answer
Marks
Science Stage 6 Paper 1 Mark Scheme
parallel circuit = 0 marks
1 both answers needed for the mark
one or two correct = 1 mark
three or four correct = 2 marks
3 all five correct = 3 marks
Further Information
2022
28 days
8(c)
© UCLES 2022
orbit
Question
8(b)
8(a)
S6/01
58
228
108
150
4495
2871
1434
779
Mars
Venus
Earth
Neptune
Uranus
Saturn
Jupiter
Page 9 of 10
distance from the Sun
in millions of km
Mercury
planet
Answer
Marks
Science Stage 6 Paper 1 Mark Scheme
more than one answer circled = 0 marks
1 Accept any indication of the correct answer, e.g.
ticking or underlining, but circling takes
precedence
1
Ignore Pluto
Note if no marks scored award 1 mark if all eight
planets are named
three or four correct = 1 mark
five, six or seven correct = 2 marks
3 all eight correct = 3 marks
Further Information
2022
S6/01
Science Stage 6 Paper 1 Mark Scheme
BLANK PAGE
© UCLES 2022
Page 10 of 10
2022
Science
Stage 6
Paper 2
Cambridge Primary Progression Test
Mark Scheme
3134_02_MS_7RP
© UCLES 2022
2022
S6/02
Science Stage 6 Paper 2 Mark Scheme
2022
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 2022
Page 2 of 10
Question
© UCLES 2022
1(c)
1(b)
1(a)
S6/02
stomach acid
disinfect food surfaces
Page 3 of 10
do not leave cooked food near uncooked food
cook food thoroughly
wash hands
any two from
fungi
parasites
bacteria
virus
any two from
Answer
Marks
Science Stage 6 Paper 2 Mark Scheme
1 Ignore skin and mucus
Accept any suitable suggestion
2 each correct answer = 1 mark
Ignore named organisms
2 each correct answer = 1 mark
Further Information
2022
© UCLES 2022
any one from
2(c)
Page 4 of 10
evaporation takes place at the surface of the liquid
evaporation happens at all temperatures
any one from
and
boiling takes place everywhere within the liquid
boiling only happens at the boiling point
boiling happens at one temperature
can be reversed (by cooling) / can be reversed (by
condensation)
2(b)
Answer
liquid to gas
Question
Marks
Science Stage 6 Paper 2 Mark Scheme
2(a)
S6/02
correct statement about evaporation = 1 mark
Accept boiling of water only happens at 100 °C
2 correct statement about boiling = 1 mark
1 Accept no new substance is made
1 Accept vapour for gas
Further Information
2022
weight is smaller / gravity is less
4(d)
© UCLES 2022
newton
4(c)
no air resistance
gravity is different on the Moon
4(b)
Answer
Page 5 of 10
has a mass / (low) melting point / (low) boiling point
new substances are made
gas is made / fizzes / carbon dioxide is made
Answer
kilograms / grams
Question
Question
Marks
Marks
Science Stage 6 Paper 2 Mark Scheme
4(a)
3(b)
3(a)
S6/02
Accept ora if the Earth is specified
Note assume answers refer to the Moon unless
otherwise specified
2 each correct answer = 1 mark
Do not accept incorrect units, e.g. kg / g
Do not accept n
1 Accept N
1 Accept smaller gravity on the Moon
Do not accept incorrect units, e.g. N
1 Accept kg / g
Further Information
1 Accept any correct property of carbon dioxide,
e.g. does not conduct heat / does not conduct
electricity / it is a gas / turns limewater milky / low
density / it sinks in air / it is light weight / it has a
weight
Accept cannot be reversed as an extra marking
point
Ignore colour change / temperature change
2 each correct answer = 1 mark
Further Information
2022
© UCLES 2022
Page 6 of 10
(idea that) no living organisms will be able to live near the
lava or magma / rock formed before living organisms
appeared on the Earth
5(d)
formed by action of heat and pressure (which will distort any
fossils)
rock is metamorphic
F
B
Answer
cooling of magma / cooling of lava / cooling of liquid rock
Question
Marks
Science Stage 6 Paper 2 Mark Scheme
5(c)
5(b)
5(a)
S6/02
1 Accept correct suggestion, e.g. living organisms
would have burnt
1 Accept solidification instead of cooling
2 each correct answer = 1 mark
Accept either order
2 each correct answer = 1 mark
Further Information
2022
Question
© UCLES 2022
6(b)
6(a)
S6/02
Page 7 of 10
breathing rate after exercise/running and unit = 1 mark
breathing rate while sitting/resting and unit = 1 mark
(name of) friend/person = 1 mark
results table with row or heading for
(idea that) they need more oxygen
(breathing rate) will increase after running
Answer
Marks
Science Stage 6 Paper 2 Mark Scheme
3
Accept bpm for breaths per minute
Note the rows and columns do not need to be
drawn with a ruler
Note if units for breathing rate missing =
maximum 2 marks
Note the unit for breathing rate only needs to be
shown once for maximum marks
Accept ora
Accept (breathing rate) will be faster
2 each correct answer = 1 mark
Further Information
2022
© UCLES 2022
Page 8 of 10
Ignore symbols for junctions
3 Ignore other components added to the circuit
Accept different lamps may draw different current
parallel circuit drawn with one lamp on each branch =
1 mark
two lamps shown = 1 mark
7(d)
more than one answer circled = 0 marks
1 Accept to keep the test fair
1
2022
Accept any indication of the correct answer, e.g.
ticking, underlining or written answer next to the
question, but circling takes precedence
1 Accept 3 lamps or 4 lamps circled
Further Information
Accept only one cell drawn
lamps need to be a control variable
7(c)
Marks
two cells and no gaps = 1 mark
repeat the experiment (with 3 lamps/4 lamps again)
7(b)
Answer
6 or 7
Question
Science Stage 6 Paper 2 Mark Scheme
7(a)
S6/02
© UCLES 2022
Page 9 of 10
hips widen / breasts develop
9(b)
Answer
by evaporating off the water
can be reversed
salt (particles and water particles) move around
salt (particles) spread out
water (particles) surround the salt (particles)
any two from
Answer
voice deepens / Adam’s apple develops / facial hair
Question
Question
Marks
Marks
Science Stage 6 Paper 2 Mark Scheme
9(a)
8(b)
8(a)
S6/02
1 Accept menstruation starts
1 Accept growth of testicles/penis / more muscular
body
Further Information
2 each correct answer = 1 mark
Do not accept the salt particles disappear
2 each correct answer = 1 mark
Further Information
2022
S6/02
Science Stage 6 Paper 2 Mark Scheme
BLANK PAGE
© UCLES 2022
Page 10 of 10
2022
Science
Stage 6
Paper 1
Cambridge Primary Progression Test
Mark Scheme
3134_01_MS_6RP
© UCLES 2023
2023
3134/01
Science Stage 6 Paper 1 Mark Scheme
2023
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 2023
Page 2 of 12
© UCLES 2023
Page 3 of 12
Accept producer for plant
tadpole/animal eats the plants and so obtains energy
2 each correct answer = 1 mark
1 all four correct for the mark
1 both needed in any order for the mark
1
Further Information
Accept Sun/light used for photosynthesis
plants → tadpole → fish → kingfisher
1(c)
Marks
Sun/light absorbed by plants
water beetle and snail
1(b)
1(d)
kingfisher
Answer
Science Stage 6 Paper 1 Mark Scheme
1(a)
Question
3134/01
2023
© UCLES 2023
2(c)
2(b)
2(a)
Question
3134/01
Accept evaporation happens below the
boiling point or evaporation only occurs at
the surface of a liquid
(Evaporation is) when a liquid becomes a gas below the
boiling point.
Page 4 of 12
Accept boiling only happens at the boiling
point or boiling occurs throughout a liquid
2 each correct sentence = 1 mark
1
(Boiling is) when a liquid becomes a gas at the boiling point.
hydrogen
lead
copper
carbon
(gold)
solid at room temperature
if substance in both ovals, then incorrect for that
substance
neon
2 all four correct = 2 marks
Further Information
one, two or three correct = 1 mark
Marks
2023
(hydrogen)
gas at room temperature
Answer
Science Stage 6 Paper 1 Mark Scheme
© UCLES 2023
3(c)
3(b)
3(a)
Question
3134/01
5 and 1
2 and 2 and 2
D
E
2 each correct answer = 1 mark
Accept ecf from part (a)
Accept answer circled in the results table or
diagrams, but circled letter on answer line takes
precedence
Accept any indication of the correct answer, e.g.
ticking or underlining, but circling takes
precedence
1 more than one answer circled = 0 marks
Accept 5 and 1 in either order
Page 5 of 12
Accept the lamps are brighter in the parallel
circuits than in the series circuits
(8 and 8 and 8)
C
one correct = 0 marks
the more lamps in a series circuit the dimmer/less bright the
lamps / ora
8 and 8
B
two, three or four correct = 1 mark
2 all five correct = 2 marks
Further Information
Accept higher level answers, e.g. the current is
the same in all branches of a parallel circuit
8
A
Marks
2023
lamps have the same brightness in parallel circuits
D
lamp brightness
(circuit)
Answer
Science Stage 6 Paper 1 Mark Scheme
metamorphic
sedimentary
melting
4(b)
4(c)
4(d)
© UCLES 2023
igneous
4(a)
Question
3134/01
Answer
Page 6 of 12
Marks
Science Stage 6 Paper 1 Mark Scheme
Accept answer written on diagram, but answer
line takes precedence
Accept any indication of the correct answer, e.g.
ticking or underlining, but circling takes
precedence
1 more than one answer circled = 0 marks
1 Accept named sedimentary rock, e.g. sandstone
1 Accept named metamorphic rock, e.g. slate
1 Accept named igneous rock, e.g. granite
Further Information
2023
© UCLES 2023
5(b)
5(a)
Question
3134/01
to hold more air/oxygen
from the lung(s) to the blood
Page 7 of 12
through the nose and/or mouth to the lung(s)
Answer
Marks
Science Stage 6 Paper 1 Mark Scheme
1 Accept correct ideas, e.g. so it can hold its breath
longer underwater
2 each correct answer = 1 mark
Further Information
2023
© UCLES 2023
6(c)
6(b)
6(a)
Question
3134/01
Page 8 of 12
helps Safia describe the process of evaporation
particles cannot be seen
shows particles change from being a liquid to a gas (state)
shows evaporation happens at the surface of a liquid
shows particles are involved in evaporation
any two from
more circles/particles leaving liquid A than liquid B
for two marks
circles/particles drawn leaving the liquid
for one mark
time taken
mass of liquid
any one from
Answer
Marks
Science Stage 6 Paper 1 Mark Scheme
Accept mass decrease
Accept other ideas, e.g. it simplifies the process
or visualises the process
2 each correct answer = 1 mark
2
1
Further Information
2023
Page 9 of 12
A
7(c)
© UCLES 2023
(speed) stays the same or constant (speed)
Accept any indication of the correct answer, e.g.
ticking or underlining, but circling takes
precedence
1 more than one answer circled = 0 marks
1
Accept for D thrust or propulsion or forward force
or driving force or pushing force
C weight or (force of) gravity
D applied force
Accept for C gravitational force
B friction or water resistance
one, two or three correct = 1 mark
2 all four correct = 2 marks
Further Information
Accept buoyancy force or lift
Marks
2023
A upthrust
Answer
Science Stage 6 Paper 1 Mark Scheme
7(b)
7(a)
Question
3134/01
© UCLES 2023
8(d)
8(c)
8(b)
8(a)
Question
3134/01
Sun
Page 10 of 12
distance from the Sun in
millions of km
150
779
228
58
4495
1434
2873
108
(idea that) clouds are in the way
Earth
Jupiter
Mars
Mercury
Neptune
Saturn
Uranus
Venus
planet
Answer
Marks
Science Stage 6 Paper 1 Mark Scheme
Accept approximately half shaded on the
left-hand side
1 correct diagram = 1 mark
1
Accept the Moon drawn in any position on its
orbit around the Earth
1 Moon and orbit around Earth = 1 mark
less than four correct = 0 marks
four, five, six or seven correct = 1 mark
2 all eight correct = 2 marks
Further Information
2023
Question
© UCLES 2023
10
9(b)
9(a)
Question
3134/01
Answer
this is refraction
(explanation)
Page 11 of 12
(idea that ray of) light changes direction when it travels into
glass/water
(description)
nutrients
(Blood vessel B is) a vein.
(Blood vessel A is) an artery.
Answer
Marks
Marks
Science Stage 6 Paper 1 Mark Scheme
Note answers can be anywhere on the
answer lines
2 each correct answer = 1 mark
Further Information
Ignore oxygen and waste
1 Accept any correct answer, e.g. carbon dioxide
or hormones or named nutrients
1 both answers correct for the mark
Further Information
2023
3134/01
Science Stage 6 Paper 1 Mark Scheme
Pre-standardisation
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Page 12 of 12
2023
Science
Stage 6
Paper 2
Cambridge Primary Progression Test
Mark Scheme
3134_02_MS_6RP
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2023
3134/02
Science Stge 6 Paper 2 Mark Scheme
2023
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
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Page 2 of 12
Question
sandstone
2(b)
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metamorphic
2(a)
Answer
Page 3 of 12
(because) more components in the (series) circuit with the
same amount of power/current/push from the battery/cells.
Marks
Further Information
1 Accept answer circled on diagram, but answer
line takes precedence
1
2023
Accept (idea that) all the components share the
same current
2 each correct answer = 1 mark
Do not accept closed switch
two correct components named = 1 mark
2 type of circuit correct = 1 mark
Further Information
1(c)
(The brightness of the two lamps) decreases or is less
bright.
Marks
1
battery (of cells) or two cells
switch or open switch
(components)
series
(type of circuit)
Answer
Science Stge 6 Paper 2 Mark Scheme
1(b)
1(a)
Question
3134/02
© UCLES 2023
3(c)
3(b)
3(a)
Question
3134/02
acid
do not eat food after the use by date
Page 4 of 12
keep food in a refrigerator or cover food or cool leftovers
quickly
cook food properly
wash plates or wash knives or wash utensils or wash
chopping boards or wash cloths or wash sponges
wash hands or use soap
any two from
Accept any suitable idea of a vaccination,
e.g. flu jab
(To stop themselves getting infected by the flu virus the
person) has a vaccination.
1 Accept hydrochloric acid
if no marks awarded accept good hygiene
for 1 mark
Ignore keep cooked food and uncooked
food separate
Accept any suitable method to reduce the
spread of bacteria
2 each correct answer = 1 mark
Accept any suitable method of not getting
the virus, e.g. wear a face mask
Accept any symptom of the flu virus, e.g. high
temperature
(The second host knows they have the virus because they
feel) unwell or ill or sick.
one or two correct = 1 mark
2 all three correct = 2 marks
Further Information
Accept any method of transfer through the air,
e.g. singing
Marks
2023
(The virus travels in the air when the first host) sneezes or
coughs or talks or breathes.
Answer
Science Stge 6 Paper 2 Mark Scheme
light source
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Page 5 of 12
weight is a measure of the size of the pull of gravity on the
object or weight is a force or weight is measured in
newtons/N
mass is a measure of how much matter there is in an object
or mass is measured in kilograms/kg
surface of water
4(d)
X
glass
reflection
beaker
light ray
glass
Answer
Marks
Science Stge 6 Paper 2 Mark Scheme
4(c)
4(b)
4(a)
Question
3134/02
correct statement about weight = 1 mark
2 correct statement about mass = 1 mark
1
1 Accept ray from light source reflecting on surface
of water and then ending at the letter X = 1 mark
'eye'
1 Note reflections approximately correct by
Further Information
2023
(The mass increases because the gas inside the syringe
has) mass or particles or matter
(The reactants of this reaction are) copper carbonate and
(dilute) sulfuric acid.
5(b)
5(c)
Page 6 of 12
thermal
5(e)
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(idea that) melting point or boiling point is a property (of a
substance/sulfuric acid)
5(d)
(The products of this reaction are) carbon dioxide and
copper sulfate.
4
Answer
Marks
Science Stge 6 Paper 2 Mark Scheme
5(a)
Question
3134/02
1 Accept heat
1
if no marks awarded accept for 1 mark if the
candidate has only written one reactant and one
product
Accept water
both products needed any order = 1 mark
2 both reactants needed any order = 1 mark
Ignore increases
1 Ignore weight
Accept any indication of the correct answer, e.g.
ticking or underlining, but circling takes
precedence
1 more than one answer circled = 0 marks
Further Information
2023
0
2
4
6
mass of sand
added to pot
in g
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Page 7 of 12
organic matter
6(c)
0
1
2
3
as the mass of sand increases, the mean length of roots
decreases
mean length
of roots
in cm
8
1 Accept humus or named organic content, e.g.
manure
Note conclusion must describe the effect of
changing the mass of sand on mean root length
1 Accept ora
Accept ecf for straight line from their plotted
points
straight line through the plotted points = 1 mark
4
2 last two plots = 1 mark
Further Information
Accept plots ±one small square tolerance
Marks
2023
5
6
Answer
Science Stge 6 Paper 2 Mark Scheme
6(b)
6(a)
Question
3134/02
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6(d)
Question
3134/02
clay particles do not stick together


Page 8 of 12
sand lets water move between the particles
clay has larger air spaces between the particles
than sand particles
sand particles are larger than clay particles
Answer
Marks
Science Stge 6 Paper 2 Mark Scheme
two incorrect ticks = 0 marks
one incorrect tick = maximum 1 mark
2 each correct tick = 1 mark
Further Information
2023
© UCLES 2023
7(a)
Question
3134/02
(reduce) carry an inhaler
(risk) problem breathing or asthma attack
or
(reduce) exercise away from cars/danger
(risk) exercising on road
or
(reduce) check you are fit to exercise first
(risk) exercise may damage heart
or
Page 9 of 12
Ignore falling over
(reduce) warm up before exercise
linked reason about how to reduce the risk
= 1 mark
2 risk = 1 mark
Further Information
Accept any suitable risk and how to reduce the
risk
Marks
2023
(risk) exercise may damage muscles
or
(reduce) limit the amount of exercise
(risk) too much exercise may cause addiction
Answer
Science Stge 6 Paper 2 Mark Scheme
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7(b)
Question
3134/02
Accept any correct difference
pulse rates for each boy are the same before as after
exercise or pulse rates go back to normal after exercise
Page 10 of 12
Rajiv's pulse rate decreases more slowly after exercise / ora
Rajiv’s recovery time is more than/twice that of Pierre's / ora
Rajiv’s pulse rate is 30 (bpm) higher than Pierre’s at the end
of exercise or Rajiv’s pulse rate is 140 and Pierre’s is 110 at
the end of exercise
Rajiv’s pulse rate is 20 (bpm) higher than Pierre’s before
exercise/after exercise or Rajiv’s pulse rate is 80 and
Pierre’s is 60 before exercise/after exercise
Rajiv always has a higher pulse rate than Pierre
any one from
(difference)
follow the same pattern
both have a recovery time
pulse rates both decrease after exercise
pulse rates both increase during exercise
Accept any correct similarity
pulse rates are the lowest before or after exercise
2 similarity = 1 mark
Further Information
difference = 1 mark
Marks
any one from
(similarity)
Answer
Science Stge 6 Paper 2 Mark Scheme
2023
© UCLES 2023
8(c)
Page 11 of 12
(When an ice lolly is placed in the mouth it) melts.
(The ice lolly changes from a) solid (to a) liquid.
(This is a) physical (change.)
(Orange juice changes from a) liquid (to a) solid.
8(b)
Answer
0 (°C)
Question
(during exercise because) more oxygen (is needed for
exercise).
(The breathing rate) increases or goes up or is more or is
greater
Answer
Marks
Marks
Science Stge 6 Paper 2 Mark Scheme
8(a)
7(c)
Question
3134/02
2 each correct sentence = 1 mark
Accept reversible
2 each correct sentence = 1 mark
1 Accept any temperature in the range −5 to 5(°C)
Further Information
2 each correct answer = 1 mark
Further Information
2023
3134/02
Science Stage 6 Paper 2 Mark Scheme
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2023