Ogos 2015
BAHAGIAN PENGURUSAN SEKOLAH BERASRAMA PENUH DAN SEKOLAH KECEMERLANGAN
PENTAKSIRAN DIAGNOSTIK AKADEMIK SBP 2015:
PERCUBAAN PENTAKSIRAN TINGKATAN 3
SAINS
PERATURAN
PEMARKAHAN
Ogos 2015
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 conduction
convection
Ogos 2015
(ii) Able to circle the correct way of energy transfer through the copper wall
Answer:
Remark:
1 circle only for correct answer
1
(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 5
3. (a) Able to label the parts of the organ according to their functions.
Answer: R S
Note:
2 correct answers – 2 marks 1 correct answer – 1 mark 0 correct answer – 0 mark
2 conduction
convection
Ogos 2015
(b) Able to complete the flow chart below to show the path of 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
2
(c) Able to suggest two modern technologies that can be used to correct long-sightedness.
Suggested answer: 1. Using contact lens 2. Laser treatment
3. Using (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 Cornea
Kornea Q P
Retina
Ogos 2015
(b) Able to match Y and Z with the correct example of flowering plants
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 juice
1
(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
Ogos 2015
6. (a)(i) Able to name the type of support system of the plant shown in the diagram
R: Buttress root S: Tendrils
2
(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
Ogos 2015
P2: Distance between force and fulcrum in worker A is less than worker B.
Note :
Correct worker – 1 mark 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
(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 and oxygen concentration and give explanation
Answer:
P1: Respiration rate increases while oxygen concentration decreases.
P2: Respiration rate increases to supply more oxygen while oxygen 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 cell during exercise.
Answer:
Carbon dioxide : Increases/ Bertambah Glucose : Decreases/ Berkurang
1 1
Ogos 2015
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 history
2. Screening the donated blood for compatibility with Amin 3. Screening the donated blood to make sure the blood free from
blood transmitted diseases *** Accept any reasonable answer
2
(b) Able to explain in detail whether haemophilia patient can use the blood donated by Amin’s family member
Suggested answer:
1. P1: Yes if we use plasma component from the donated blood. 2. P2: To increase his ability of the blood to clot.
3.
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 traumatize
P2: 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
Ogos 2015
10. (a)(i) Able to indicate the position of the kidney stone in the diagram
Answer:
Remark:
Mark either one part only
1
(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 water
P2 – 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 decrease
P2 – no mineral salt will accumulate (in the urinary system) *** Accept any reasonable answer
2
X
X
Ogos 2015
(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 *** Accept any reasonable answer.
Remark:
Must have 1 point for correct opinion & 1 point explanation.
2
TOTAL 8
11 (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
Ogos 2015
(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
(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 wage inflation// 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
Ogos 2015
13. (a) (i) Able to consider the meal and explain what a balanced diet is.
Answer:
P1 : No, she is not taking a balance diet
P2 : 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
4 Total calorific value (kJ) = (40.1 x 17) + (22.4 x 17) +
(20.6 x 38) kJ
Ogos 2015
iii) Adding Benedict reagent iv) Observing the result
TOTAL 10
14. (a) Able to state the advantages and disadvantages of using petrol generator.
Sample answer:
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.
2
(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.
Ogos 2015
*** Accept any reasonable answer.
Remarks:
1 mark for sketch with label. 1 mark for explanation
JUMLAH 10
