Science
Stage 6
V1
2
Stage 6 Paper 1 Mark Scheme
Question
Part
1
Mark
Answer
process
Further Information
reversible
irreversible
baking cakes
2
melting
chocolate
cooking soup
evaporating
puddle
of water
Total
2
Question
2
Part
Mark
(a)
3
Answer
Further Information
A: lungs
B: stomach
C: liver
D: brain
4 correct = 3 marks
3 correct = 2 marks
1/2 correct = 1 mark
(b)
job
organ
controls the
body’s actions
D
digests food
B
exchanges gases
A
2
Total
© UCLES 2011
4 correct = 2 marks
2/3 correct = 1 mark
1 correct = 0 marks
5
P840/MS/A/M/11
Accept name of organ instead of
letter.
3 correct = 2 marks
1/2 correct = 1 mark
3
Question
Part
3
Mark
Answer
Further Information
(a)
6 correct = 4 marks
4/5 correct = 3 marks
2/3 correct = 2 marks
1 correct = 1 mark
4
(b)
indigestion tablet
Accept response from part (a) linked
to ‘Bubbles are in the water. / The one
that bubbles.
iron filings
chalk
1 mark for each correct answer
Answer
Further Information
1
(c)
2
Total
7
Question
4
Part
Mark
air resistance
gravity
1
magnetism
weight
Total
© UCLES 2011
1
P840/MS/A/M/11
4
Question
Part
5
Mark
(a)
Answer
Further Information
if more than one tick = 0 marks
add another lamp
add another cell
1
make the wires longer
remove one of the cells
(b)
correct symbols in a complete circuit =
2 marks
correct symbols = 1 mark
2
Total
3
Question
6
Part
(a)
Mark
Answer
(i)
1
50
(ii)
1
6
(b)
Further Information
The higher the slope, the further the
car travels from the bottom of the
slope.
1
Total
© UCLES 2011
3
P840/MS/A/M/11
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 car
travels from the bottom of the slope.
5
Question
Part
7
Mark
Answer
Further Information
true
Salt will dissolve in water.
Sugar dissolves quicker in
hot water than cold water.
false
4 correct = 2 marks
2/3 correct = 1 mark
1 correct = 0 marks
2
Total
2
Question
8
Part
(a)
Mark
(i)
When sweet tea is heated,
the sugar evaporates.
Stirring makes insoluble
solids dissolve quicker.
Answer
Further Information
1
heat the solution / use hot water /
crush the mixture before adding to the
beaker / stir faster
(ii)
1
sand
Do not accept insoluble solid.
(iii)
1
sugar
Do not accept soluble solid.
1 mark for each correct answer.
2
A solid dissolved in water is a
solution.
A substance that can dissolve in
water is soluble.
Answer
Further Information
D
Accept copper or any clear indication
of the correct answer.
(b)
Total
5
Question
9
Part
Mark
1
Total
© UCLES 2011
1
P840/MS/A/M/11
6
Question
Part
10
Mark
Answer
Further Information
Food chains always start with a
producer.
all correct = 3 marks
2/3 correct = 2 marks
1 correct = 1 mark
An animal that eats another animal is
called a predator.
3
An animal that is eaten by other
animals is called a prey.
An animal that eats something else in
a food chain is called a consumer.
Total
3
Question
11
Part
Mark
(a)
(b)
1
Answer
Further Information
C
Accept any clear indication of the
correct response.
(i)
1
blood
(ii)
1
lungs
(iii)
1
muscle
Total
© UCLES 2011
4
P840/MS/A/M/11
7
Question
Part
12
Mark
Answer
Further Information
–
+ –
+
all correct = 3 marks
2/3 correct = 2 marks
1 correct = 1 mark
6v
motor
M
–
+
3
–
+
M
–
+
6v
motor
Total
© UCLES 2011
3
P840/MS/A/M/11
8
Question
Part
13
Mark
(a)
Answer
beats in 10
seconds
X 6 = pulse
rate
11
66
10
60
10
60
11
66
9
54
9
54
2
(b)
(c)
1
(i)
1
(ii)
Further Information
60
Accept correct average (mean) pulse
rate from answer give in 11 (a).
stopwatch / stop clock
Accept: clock / watch / timer with
second hand.
Everybody’s heartbeat is always the
same.
1
Sometimes your blood flows
backwards.
Everybody’s pulse rate varies even
when sitting still.
Total
© UCLES 2011
all correct = 2 marks
3/4/5 correct = 1 mark
1/2 correct = 0 marks
5
P840/MS/A/M/11
9
Question
Part
14
Mark
Answer
Further Information
3 correct = 2 marks
1/2 correct = 1 mark
cell
L
lamp
2
s
switch
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
© UCLES 2011
P840/MS/A/M/11
10
Question
Part
(a)
16
Mark
Answer
Further Information
Accept arrow in any position as long
as the direction is correct.
1
(b)
cardboard
carpet
1
concrete
ice
Total
© UCLES 2011
2
P840/MS/A/M/11
11
Stage 6 Paper 2 Mark Scheme
Question
Part
Mark
Answer
Further Information
2
plankton fish penguin seal
correct lines = 1 mark
correct arrow heads = 1 mark
(i)
1
plankton
(ii)
1
penguin / seal
(a)
(b)
1
(iii)
fish / penguin / seal
any two
1
Total
5
Question
2
Part
Mark
2 correct = 1 mark
1 correct and 1 incorrect = 0 marks
Answer
Further Information
building roads
cattle ranching
1
conversion of land to
agriculture
eruption of a volcano
Total
1
Question
3
Part
Mark
Answer
Further Information
1
A and B
both required, in either order
1
C
bubbles (of gas can be seen)
correct answer and reason = 1 mark
(c)
1
filtering / filtration / sieving
Total
3
(a)
(b)
© UCLES 2011
P840/MS/A/M/11
12
Question
Part
4
Mark
Answer
Further Information
2
circulatory system = A
digestive system = C
nervous system = B
3 correct = 2 marks
1/2 correct = 1 mark
2
heart = (circulatory) B
stomach = (digestive) C
brain = (nervous) A
3 correct = 2 marks
1/2 correct = 1 mark
Answer
Further Information
(a)
(b)
Total
4
Question
5
Part
Mark
(a)
surface area of
parachute in cm2
2
(b)
1
100
400
900
1600
1st
try
3
10
11
14
2nd
try
4
8
13
15
3rd
try
5
6
12
16
average (mean)
time to reach the
floor in seconds
4
8
12
15
time to
reach the
floor in
seconds
yes
to make it a fair test
both correct = 1 mark
(c)
1
Total
© UCLES 2011
4 correct = 2 marks
2/3 correct = 1 mark
1 correct = 0 marks
4
P840/MS/A/M/11
13
Question
Part
6
Mark
3
Total
3
Question
7
Part
Mark
4
Total
© UCLES 2011
Answer
Further Information
mixture
method of
separation
mixed nuts
colander
peas in boiling
water
fingers
sand and
water
bar magnet
iron and
copper powder
filter funnel
4 correct = 3 marks
3 correct = 2 marks
1/2 correct = 1 mark
More than one line from any mixture
is incorrect.
Answer
Further Information
1 = soluble
2 = insoluble
3 = filtration
4 = solvent
each correct answer = 1 mark
4
P840/MS/A/M/11
14
Question
Part
8
Mark
Answer
Further Information
(a)
1
volume (of water)
Accept: amount/quantity of water.
(b)
1
measuring cylinder / measuring jug
Accept beaker.
The larger the volume of water the
quicker the sugar dissolves.
Accept the reverse argument: the
smaller the volume of water, the
slower the sugar dissolves.
Accept: the larger the volume of
water, the shorter the time taken.
Accept: the smaller the volume of
water, the longer the time taken.
Answer
Further Information
(c)
1
Total
3
Question
9
Part
Mark
2
Total
© UCLES 2011
part of the
pencil
electrical
conductor
graphite
metal
electrical
insulator
rubber
wood
2
P840/MS/A/M/11
4 correct = 2 marks
2/3 correct = 1 mark
1 correct = 0 marks
15
Question
Part
10
Mark
Answer
Further Information
(a)
2
increasing brightness
light sensor
reading
3 correct = 2 marks
1/2 correct = 1 mark
B
C
A
circuit
(b)
each correct circuit = 1 mark
2
Total
4
Question
11
Part
Mark
Answer
Further Information
do not drop litter
stop cutting down the rainforests
2
Total
© UCLES 2011
build solar power stations instead of oilfired ones
switch lights off when you leave an empty
room
recycle glass bottles
2
P840/MS/A/M/11
3 correct = 2 marks
2 correct = 1 mark
1 correct = 0 marks
If 4 boxes ticked and
3 correct = 1 mark
If 4 boxes ticked and
2/ 1 correct = 0 marks
If 5 boxes ticked = 0 marks
16
Question
Part
12
Mark
(a)
Answer
process
Further Information
reversible
irreversible
heating the eggs
4 correct = 2 marks
2/3 correct = 1 mark
1 correct = 0 marks
Do not accept response if both boxes
are ticked.
2
boiling the water
toasting (grilling) the
bread
putting sugar in the
tea
(b)
1
Total
3
Question
13
Part
Mark
Once it is ripe you cannot get fruit
back.
Answer
Further Information
(a)
On Earth his mass is 90 kg
both correct = 1 mark
On Earth his weight is 90 N
1
In space his mass is 90 kg
In space his mass is 0 kg
(b)
(i)
1
(ii)
1800 (units:) Newtons
number and unit = 1 mark
Accept N.
200 (units:) Newtons
number and unit = 1 mark
Accept N. Ignore unit if incorrect in
(b).
1
Total
© UCLES 2011
3
P840/MS/A/M/11
17
Question
Part
14
Mark
Answer
Further Information
(a)
1
(b)
(c)
1
increases / gets bigger / larger / goes
up
1
slows (down) / decreases / gets less /
goes down
Total
3
Question
15
Part
Mark
Answer
Further Information
200
(a)
Points correctly plotted on graph.
Ignore any lines joining points.
correct points at normal and ½ minute
= 1 mark
correct point at 1 minute and 1½
minutes = 1 mark
180
160
140
120
pulse rate
2
100
80
60
40
20
0
normal
pulse rate
½
minute
1
minute
1½
minutes
time spent exercising / minutes
(b)
(c)
1
(i)
(ii)
1
1
(d)
to make it a fair test
Accept idea of always using the same
starting pulse / make comparisons.
beats per minute
Accept: heart rates per minute / pulse
rate per minute / bpm.
heart
The longer Anya exercises the
higher her pulse rate.
1
Total
© UCLES 2011
6
P840/MS/A/M/11
Accept for longer: greater / more.
Accept for higher: greater / more /
bigger / faster.
Accept the reverse argument, e.g.
The shorter Anya exercises the
lower her pulse rate.