Download - s Stage 6 p840 Ms Afp
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Science
Stage 6
V2
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This table gives general guidelines on marking answers involving units of length. For questionsinvolving other quantities, correct units are given in the answers. The table shows acceptable andunacceptable versions of the answer 1.85 m.
Correct answer Also accept Do not accept
Units are not given onanswer line and thequestion does notspecify a unit
1.85 m Correct conversionsprovided the unit isstated, e.g.1 m 85 cm185 cm1850 mm0.00185 km
1.85
185 m
If the unit is given onthe answer line, e.g.………………… m
……1.85…… m Correct conversions,provided the unit isstated unambiguously,e.g. ……185 cm…… m
……185…… m……1850…… metc.
If the question statesthe unit that the answershould be given in, e.g.“Give your answer inmetres”
1.85 m 1.851 m 85 cm
185; 1850
Any conversions toother units.
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Stage 6 Paper 1 Mark Scheme
Question 1
Part Mark Answer Further Information
2
process reversible irreversible
baking cakes
meltingchocolate
cooking soup
evaporatingpuddleof water
4 correct = 2 marks2/3 correct = 1 mark1 correct = 0 marks
Total 2
Question 2
Part Mark Answer Further Information
(a)
3
A: lungsB: stomachC: liver
D: brain
4 correct = 3 marks3 correct = 2 marks1/2 correct = 1 mark
(b)
2
job organ
controls thebody’s actions
D
digests food B
exchanges gases A
Accept name of organ instead ofletter.
3 correct = 2 marks1/2 correct = 1 mark
Total 5
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Question 3
Part Mark Answer Further Information
(a)
4
6 correct = 4 marks
4/5 correct = 3 marks2/3 correct = 2 marks1 correct = 1 mark
(b)1
indigestion tablet Accept response from part (a) linkedto ‘Bubbles are in the water. / The onethat bubbles.
(c)2
iron filingschalk
1 mark for each correct answer
Total 7
Question 4
Part Mark Answer Further Information
1
air resistance
gravity
magnetism
weight
Total 1
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Question 5
Part Mark Answer Further Information
(a)
1
add another lamp
add another cell
make the wires longer
remove one of the cells
if more than one tick = 0 marks
(b)
2
correct symbols in a complete circuit =
2 marks
correct symbols = 1 mark
Total 3
Question 6
Part Mark Answer Further Information
(a) (i) 1 50
(ii) 1 6
(b)
1
The higher the slope, the further thecar travels from the bottom of theslope.
Accept alternatives for ‘higher’, e.g.taller / steeper / greater. Accept alternatives for ‘further’, e.g.
longer / greater / more. Accept the reverse argument, e.g.The lower the slope the less the cartravels from the bottom of the slope.
Total 3
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Question 7
Part Mark Answer Further Information
2
true false
Salt will dissolve in water.
Sugar dissolves quicker inhot water than cold water.
When sweet tea is heated,the sugar evaporates.
Stirring makes insolublesolids dissolve quicker.
4 correct = 2 marks2/3 correct = 1 mark
1 correct = 0 marks
Total 2
Question 8
Part Mark Answer Further Information
(a) (i)1
heat the solution / use hot water /crush the mixture before adding to thebeaker / stir faster
(ii) 1 sand Do not accept insoluble solid.
(iii) 1 sugar Do not accept soluble solid.
(b)
2
A solid dissolved in water is asolution. A substance that can dissolve inwater is soluble.
1 mark for each correct answer.
Total 5
Question 9
Part Mark Answer Further Information
1D Accept copper or any clear indication
of the correct answer.
Total 1
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Question 10
Part Mark Answer Further Information
3
Food chains always start with a
producer.
An animal that eats another animal iscalled a predator .
An animal that is eaten by otheranimals is called a prey.
An animal that eats something else ina food chain is called a consumer .
all correct = 3 marks
2/3 correct = 2 marks1 correct = 1 mark
Total 3
Question 11
Part Mark Answer Further Information
(a)1
C Accept any clear indication of thecorrect response.
(b) (i) 1 blood
(ii) 1 lungs
(iii) 1 muscle
Total 4
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Question 12
Part Mark Answer Further Information
3
M
++ – –
6v
motor
+ –
+ –
6v
motor
M
+ –
all correct = 3 marks
2/3 correct = 2 marks1 correct = 1 mark
Total 3
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Question 13
Part Mark Answer Further Information
(a)
2
beats in 10
seconds
X 6 = pulse
rate
11 66
10 60
10 60
11 66
9 54
9 54
all correct = 2 marks
3/4/5 correct = 1 mark1/2 correct = 0 marks
(b)1
60 Accept correct average (mean) pulserate from answer give in 11 (a).
(c) (i)1
stopwatch / stop clock Accept: clock / watch / timer withsecond hand.
(ii)
1
Everybody’s heartbeat is always thesame.
Sometimes your blood flows
backwards.
Everybody’s pulse rate varies evenwhen sitting still.
Total 5
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Question 14
Part Mark Answer Further Information
2
L
s
cell
lamp
switch
3 correct = 2 marks
1/2 correct = 1 mark
Total 2
Question 15
Part Mark Answer Further Information
(a) 1 C Accept kg, Kg or kilogram.
(b) 1 B Accept N or Newtons.
Total 2
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Question 16
Part Mark Answer Further Information
(a)
1
Accept arrow in any position as long
as the direction is correct.
(b)
1
cardboard
carpet
concrete
ice
Total 2
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Stage 6 Paper 2 Mark Scheme
Question 1
Part Mark Answer Further Information
(a) 2 planktonfishpenguin
seal correct lines = 1 markcorrect arrow heads = 1 mark
(b) (i) 1 plankton
(ii) 1 penguin / seal
(iii)
1
fish / penguin / seal any two
2 correct = 1 mark1 correct and 1 incorrect = 0 marks
Total 5
Question 2
Part Mark Answer Further Information
1
building roads
cattle ranching
conversion of land toagriculture
eruption of a volcano
Total 1
Question 3
Part Mark Answer Further Information
(a) 1 A and B both required, in either order
(b)1
Cbubbles (of gas can be seen)
correct answer and reason = 1 mark
(c) 1 filtering / filtration / sieving
Total 3
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Question 4
Part Mark Answer Further Information
(a)
2
circulatory system = A
digestive system = C nervous system = B
3 correct = 2 marks
1/2 correct = 1 mark
(b)2
heart = (circulatory) B stomach = (digestive) C brain = (nervous) A
3 correct = 2 marks1/2 correct = 1 mark
Total 4
Question 5
Part Mark Answer Further Information
(a)
2
surface area ofparachute in cm
2
100 400 900 1600
1st
try3 10 11 14
2nd
try
4 8 13 15
time toreach thefloor in
seconds 3rd
try
5 6 12 16
average (mean)
time to reach thefloor in seconds 4 8 12 15
4 correct = 2 marks2/3 correct = 1 mark1 correct = 0 marks
(b)1
yesto make it a fair test
both correct = 1 mark
(c)
1
Total 4
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Question 6
Part Mark Answer Further Information
3
mixturemethod ofseparation
mixed nuts colander
peas in boilingwater
fingers
sand andwater bar magnet
iron andcopper powder filter funnel
4 correct = 3 marks
3 correct = 2 marks1/2 correct = 1 mark
More than one line from any mixtureis incorrect.
Total 3
Question 7
Part Mark Answer Further Information
4
1 = soluble2 = insoluble3 = filtration4 = solvent
each correct answer = 1 mark
Total 4
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Question 8
Part Mark Answer Further Information
(a) 1 volume (of water) Accept: amount/quantity of water.
(b) 1 measuring cylinder / measuring jug Accept beaker.
(c)
1
The larger the volume of water thequicker the sugar dissolves.
Accept the reverse argument: thesmaller the volume of water, theslower the sugar dissolves. Accept: the larger the volume ofwater, the shorter the time taken. Accept: the smaller the volume ofwater, the longer the time taken.
Total 3
Question 9
Part Mark Answer Further Information
2
part of thepencil
electricalconductor
electricalinsulator
graphite
metal
rubber
wood
4 correct = 2 marks2/3 correct = 1 mark1 correct = 0 marks
Total 2
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Question 10
Part Mark Answer Further Information
(a)
2
circuit
B C A
i n c r e a s i n g
b r i g h t n e s s
light sensor
reading
3 correct = 2 marks
1/2 correct = 1 mark
(b)
2
each correct circuit = 1 mark
Total 4
Question 11
Part Mark Answer Further Information
2
do not drop litter
stop cutting down the rainforests
build solar power stations instead of oil-fired ones
switch lights off when you leave an emptyroom
recycle glass bottles
3 correct = 2 marks2 correct = 1 mark1 correct = 0 marksIf 4 boxes ticked and3 correct = 1 markIf 4 boxes ticked and2/ 1 correct = 0 marksIf 5 boxes ticked = 0 marks
Total 2
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Question 12
Part Mark Answer Further Information
(a)
2
process reversible irreversible
heating the eggs
boiling the water
toasting (grilling) thebread
putting sugar in thetea
4 correct = 2 marks
2/3 correct = 1 mark1 correct = 0 marks
Do not accept response if both boxesare ticked.
(b)1
Once it is ripe you cannot get fruitback.
Total 3
Question 13
Part Mark Answer Further Information
(a)
1
On Earth his mass is 90 kg
On Earth his weight is 90 N
In space his mass is 90 kg
In space his mass is 0 kg
both correct = 1 mark
(b) (i) 1 1800 (units:) Newtons number and unit = 1 mark Accept N.
(ii)1
200 (units:) Newtons number and unit = 1 mark Accept N. Ignore unit if incorrect in(b).
Total 3
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Question 14
Part Mark Answer Further Information
(a)
1
(b)1
increases / gets bigger / larger / goesup
(c)1
slows (down) / decreases / gets less /goes down
Total 3
Question 15
Part Mark Answer Further Information
(a)
2
20
40
60
80
100
120
140
160
180
200
normalpulse rate
½minute
1minute
1½minutes
time spent exercising / minutes
pulse rate
0
Points correctly plotted on graph.Ignore any lines joining points.correct points at normal and ½ minute= 1 markcorrect point at 1 minute and 1½minutes = 1 mark
(b)1
to make it a fair test Accept idea of always using the samestarting pulse / make comparisons.
(c) (i) 1 beats per minute Accept: heart rates per minute / pulserate per minute / bpm.
(ii) 1 heart
(d)
1
The longer Anya exercises thehigher her pulse rate.
Accept for longer: greater / more. Accept for higher: greater / more /bigger / faster. Accept the reverse argument, e.g.The shorter Anya exercises thelower her pulse rate.
Total 6