s Stage 6 p840 Ms Afp

7/23/2019 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


(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


(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


1

air resistance

gravity

magnetism

weight

Total 1

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Question 5


(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


(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


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.


1 correct = 0 marks

Total 2

Question 8


(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


1D Accept copper or any clear indication

of the correct answer.

Total 1

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Question 10


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


(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


3

M

++ – –

6v

motor

+ –

+ –

6v

motor

M

+ –


2/3 correct = 2 marks1 correct = 1 mark

Total 3

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Question 13


(a)

2

beats in 10

seconds

X 6 = pulse

rate

11 66

10 60

10 60

11 66

9 54

9 54


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


2

L

s

cell

lamp

switch

3 correct = 2 marks

1/2 correct = 1 mark

Total 2

Question 15


(a) 1 C Accept kg, Kg or kilogram.

(b) 1 B Accept N or Newtons.

Total 2

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Question 16


(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


(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


1

building roads

cattle ranching

conversion of land toagriculture

eruption of a volcano

Total 1

Question 3


(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


(a)

2

circulatory system = A

digestive system = C nervous system = B

3 correct = 2 marks


(b)2

heart = (circulatory) B stomach = (digestive) C brain = (nervous) A


Total 4

Question 5


(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


(b)1

yesto make it a fair test

both correct = 1 mark

(c)

1

Total 4

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Question 6


3

mixturemethod ofseparation

mixed nuts colander

peas in boilingwater

fingers

sand andwater bar magnet

iron andcopper powder filter funnel

4 correct = 3 marks


More than one line from any mixtureis incorrect.

Total 3

Question 7


4

1 = soluble2 = insoluble3 = filtration4 = solvent

each correct answer = 1 mark

Total 4

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Question 8


(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


2

part of thepencil

electricalconductor

electricalinsulator

graphite

metal

rubber

wood


Total 2

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Question 10


(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


(b)

2

each correct circuit = 1 mark

Total 4

Question 11


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


(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


(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


(a)

1

(b)1

increases / gets bigger / larger / goesup

(c)1

slows (down) / decreases / gets less /goes down

Total 3

Question 15


(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

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s Stage 6 p840 Ms Afp