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Peraturan Pemarkahan Percubaan Sbp Pt3 2015- Sains
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7/17/2019 Peraturan Pemarkahan Percubaan Sbp Pt3 2015- Sains
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BAHAGIAN PENGURUSAN SEKOLAH BERASRAMA PENUH
DAN SEKOLAH KECEMERLANGAN
PENTAKSIRAN DIAGNOSTIK AKADEMIK SBP 2015:
PERCUBAAN PENTAKSIRAN TINGKATAN 3
SAINS
PERATURAN
PEMARKAHAN
___________________________________________________________________________
Peraturan pemarkahan ini mengandungi 12 halaman bercetak
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Peraturan Pemarkahan
Question Rubric Mark
1. (a) Able to choose the correct processes to separate the mixture.
Answer:
Remark:
1 mark for each answer
2
(b) Able to choose the correct and incorrect statement about the
properties of substances.
Answer:
(i) False
(ii) True
(iii) False
3
JUMLAH 5
2. (a)(i) Able to circle the correct way of energy transfer through the
water
Answer:
Remark:
1 circle only for correct answer
1
(ii) Able to circle the correct way of energy transfer through the 1
conduction
convection
radiation
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copper wall
Answer:
Remark:1 circle only for correct answer
(b)(i) Able to name the process that form water droplets
Answer:Condensation
1
(ii) Able to explain how the mirror can stay clear.
Sample answer:
P1: Water droplets absorb heat from the (electrical) heater
P2: Water droplets change into water vapour
*** Accept any reasonable answer
2
JUMLAH 53. (a) Able to label the parts of the organ according to their
functions.
Answer:
S
R
Note:2 correct answers – 2 marks
1 correct answer – 1 mark0 correct answer – 0 mark
2
(b) Able to complete the flow chart below to show the path of 2
conduction
convection
radiation
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light rays from the object entering in the organ.
Answer:
Note:
4 correct answer – 2 marks
3 correct answer – 1 mark
2 correct answer or less – 0 mark
(c) Able to suggest two modern technologies that can be used to
correct long-sightedness.
Suggested answer:
Using contact lens
Laser treatmentUsing (spectacles) with convex lens
Reject:
Use spectacles
2
JUMLAH 5
4. (a) Able to state the class of animal with their correct group
Answer :
mammal/ mamalia
amfibian / amfibia
Remark:
1 mark for each answer
2
(b) Able to match Y and Z with the correct example of floweringplants
Cornea
Kornea Q P
Retina
Retina S R
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Answer :
Remark:
1 mark for each answer
2
(c) Able to explain the function of coral to maintain biodiversity
Sample answer :
P1: Corals serve as breeding and nursery grounds for marine life
P2: Coral is a habitat for marine life that can protect marine life
1
1
TOTAL 6
5. (a)(i) Able to state which mixture is solution.Answer:
Blackcurrant juice1
(ii) Able to state which mixture is suspension.
Answer:Iced chocolate 1
(iii) Able to write true or false for the following statements.
Answer:
True
False
2
(b) Able to explain how to prepare the saturated sugar solution
faster.
Sample answer:
P1 – mix maximum amount of sugar with water
P2 – heat the sugar solution until all sugar dissolved.
*** Accept any reasonable answer
2
TOTAL 6
6. (a)(i) Able to name the type of support system of the plant shown
in the diagram
R: Buttress root 2
Y
Z
Orchid plant
Sunflower plant
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S: Tendrils
(ii) Able to explain the importance support system for plant S
P1: To support the weight of plant S
P2: To enable plant S to obtain light (for photosynthesis)
2
(b) Able to describe how the special structure are developed and
its function to maintain the sustainability of mangrove forest.
P1: The root are branching from the main stem
P2: To support its stability in muddy water
*** Accept any reasonable answer
2
TOTAL 6
7. (a) Able to calculate the force needed to lift the wheelbarrow.
Answer:
Note :Correct substitution value in the formula – 1 mark
Correct force value with correct unit – 1 mark
2
(b) Able to suggest one best way to use the wheelbarrow with
justification
Suggested answer:
P1: Encik Rahmat has to put his hand at the end of the handle
P2: It will increase the distance between effort and fulcrum
Note:1 best way – 1 mark
1 explanation – 1 mark
2
(c) Able to explain which workers will fell exhausted first
Answer:
P1: Worker B
P2: More effort needed by worker B// Distance between force
and load in worker B is less than worker A.
Note :Correct worker – 1 mark
2
Force X (0.4 + 0.8)m = 480N X 0.4m
Force X 1.2m = 480 X 0.4m
Force = 480 x 0.4m
1.2m
Force = 160 Newton
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1 explanation – 1 mark
TOTAL 6
8 (a) Able to fill in the blanks to show the correct movement of air
Answers:i) Alveoli / Alveolus
ii) Bronchioles / Bronkiol iii) Bronchus /Bronkus
iv) Trachea / Trakea
Remark:
4 corrects – 2 marks
3 corrects – 1 mark
2 @ 1 correct – 0 mark
2
(b)(i) Able to state the relationship between respiratory rate and
heart rate and give an explanation
Answer:
P1: Heart rate increases because heart pump more blood to the
whole body
P2: Respiration rate increases to supply more oxygen and
eliminate carbon dioxide
1
1
(ii) Able to give the relationship between respiratory rate andoxygen concentration and give explanation
Answer:
P1: Respiration rate increases while oxygen concentration
decreases.
P2: Respiration rate increases to supply more oxygen whileoxygen concentration decreases because oxygen is used for
respiration cell to produce energy
1
1
(c) Able to predict the changes of substance in the red blood cellduring exercise.
Answer:Carbon dioxide : Increases/ Bertambah
Glucose : Decreases/ Berkurang
11
TOTAL 8
9. (a) Able to explain the steps that must be taken by the hospital’s
staff before the blood can be given to Amin.
Sample answer:
1.
Interview the donors for their medical history2. Screening the donated blood for compatibility with Amin 2
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3. Screening the donated blood to make sure the blood free from
blood transmitted diseases*** Accept any reasonable answer
(b) Able to explain in detail whether haemophilia patient can use
the blood donated by Amin’s family member
Suggested answer:
P1: Yes if we use plasma component from the donated blood.
P2: To increase his ability of the blood to clot.
Note:
1 fact – 1 mark
1 correct explanation – 1 mark
2
(c)(i) Able to state about Amin’s blood
Sample answer :-
Red blood cell count / white blood cell count Amin’s still in
normal range//
- Haemoglobin / platelet count lower than the normal range. 2
(ii) Able to predict and explain what may happen to Amin when
the reading of his white blood cell count increases.
Sample answer :
P1: Amin may got bacterial infection / fever/ body traumatizeP2: Increase the immunization in Amin’s body//
The white blood cells are fighting against infections
Note:
1 fact – 1 mark
1 correct explanation – 1 mark
2
TOTAL 6
10. (a)(i) Able to indicate the position of the kidney stone in the
diagram
Answer: 1
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Remark:
Mark either one part only
(ii) Able to indicate where the stones produced come from.
Answer:
From mineral salt
1
(b) Able to describe the step to be taken in order to avoid the
risk of kidney stone diseases.
Sample answer:
P1 – Drink a lot of waterP2 – to decrease the concentration of urine
*** Accept any reasonable answer.
Remarks:
Must have 1 point for the step & 1 point description.
2
(c) Able to describe how does water intake can help prevent
recurrence of kidney stones formation.
Answer:
P1 – concentration of urine decreaseP2 – no mineral salt will accumulate (in the urinary system)
*** Accept any reasonable answer
2
(d) Able to give a correct opinion and explain the answer.
Sample answer:
P1 – Can get kidney stone again.P2 – Fast food contain high amount of sodium/ salt
2
X
X
X
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*** Accept any reasonable answer.
Remark:
Must have 1 point for correct opinion & 1 point explanation.
TOTAL 811 (a)(i) Able to identify the correct part for tubal ligation
Answer :
Remarks:
Circle left and right ovary
Reject:
Circle at one side only
1
(ii) Able to state how ligation method helped Mrs. Lim to
prevent pregnancy
Answer :
Ligation prevent the sperm to meet the ovum //To prevent the fertilised ovum to move from ovary to uterus
1
(b)(i) Able to state the most appropriate method to use based on
the graph
Sample answer:
P1 : IUCD
P2 : IUCD prevent fertilized ovum to implant against the wall of
uterus
2
(ii) Able to explain condoms are the least effective way.
Sample answer:
P1 : Condoms are easily to break/ slip/ damage
P2 : Fertilisation can still happen
2
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(c) Able to explain the impact of imbalance population on the
economy
Sample answer:
P1 : Shortage of workers
P2 : A shortage of workers hence pushes up wages causing wageinflation// Increasing number of retired workers and pension
commitments// Increase in the retirement age// Increased
government spending on health care
Remark:
*** Accept any reasonable answer
1 mark for each answer
2
TOTAL 8
12. (a) Able to give definition of growth
Answer :P1 - Growth in human is the increase of saiz and body weight /
the number of cell / changes in shape and function of human.
P2 - Growth is permanent and irreversible process.
2
(b) Able to identify body weight classification of Hafiz
Answer :
=
. ×.
= 32.87 kg/m2
Hafiz’ body weight was classified as Obese Class I
Note :
Correct BMI value – 1 mark
1 correct answer – 1 mark
2
(c) Able to give opinion and justify malnourish patient
Sample answer :P1 - Yes if she is given with high carbohydrate and protein diet.
P2 - The diet / nutrition will cover the requirement for catch up
growth to happen.
P3 - She also need to have very active physical activities.P4 - It’s for development bones and tissues / muscle occur in
optimum rate.
Note :
2 correct fact – 2 marks
1 correct fact – 1 mark
2 explanation – 2 marks1 explanation –1mark
4
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TOTAL 8
13. (a) (i) Able to consider the meal and explain what a balanced diet is.
Answer:
P1 : No, she is not taking a balance dietP2 : A balanced diet consist of all the seven classes of food
needed for daily life.
2
(ii)
Notes:
Correct substitution – 1 mark
Correct answer with respective unit – 1 mark
2
(b) Able to explain the different in daily energy requirement
Answer:
P1 : the daily energy requirement for Farihin is higher than
younger sister.P2 : As the teenager Farihin needs more energy because she has
an active lifestyle.
2
(c) Able to design an experiment used to investigate the amount
of sugar.
Sample answer:
P1: crush the cookies and mix with distilled water.
P2: add saliva to the mixture and leave it for 10 minutes.
P3: put a few drops of Benedict reagent to the mixture and heat it
in the water bath
P4: observe the colour of the Benedict reagent at the end of the
experiment.
Notes:
Student must indicate the following method:i)
Dissolving cookies in distilled water
ii) Adding saliva
iii) Adding Benedict reagent
iv) Observing the result
4
TOTAL 10
14. (a) Able to state the advantages and disadvantages of using
petrol generator.
Sample answer:2
Total calorific value (kJ) = (40.1 x 17) + (22.4 x 17) +
(20.6 x 38) kJ
= 681.7 + 380.8 + 782.8
= 1845.3 kJ
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P1 – Can be used at any time.
P2 – Pollute the environment*** Accept any reasonable answer.
Remarks:
Must have 1 point for advantages & 1 point or disadvantages.
Reject:
unrenewable energy sources.
(b) Able to state the reason for not depending on wind turbine.
Sample Answer:
1. Wind are not consistent
2. The topography of the land is not suitable*** Accept any reasonable answer.
2
(c)(i) Able to give a correct opinion and explain the reason.
Answer:
F - Cannot be accepted
E – More time needed to get an accurate readings
*** Accept any reasonable answer.
2
(ii) Able to explain the correct decision taken in building wind
turbine.
Sample Answers:F – Need to build a very tall wind turbine
E – So that the wind can flow without distraction
*** Accepts any reasonable answer.
Reject :The effect of cost
2
(d) Able to sketch and explain the modification to the solar
panel.
Sample Answer:1. Sketch with label
2. Explain about the position of solar panel to get the optimum
energy from Sunlight.
*** Accept any reasonable answer.
Remarks:1 mark for sketch with label.
1 mark for explanation
2
JUMLAH 10
~ PERATURAN PEMARKAHAN TAMAT ~
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