peraturan pemarkahan percubaan sbp pt3 2015- sains

7/17/2019 Peraturan Pemarkahan Percubaan Sbp Pt3 2015- Sains

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SULIT 1 55

55 © 2015 Hak Cipta BPSBPSK SULIT

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



SULIT 2 55


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



SULIT 3 55


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



SULIT 4 55


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:


2

(b) Able to match Y and Z with the correct example of floweringplants

Cornea

Kornea Q P

Retina

Retina S R



SULIT 5 55


Answer :

Remark:


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.


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



SULIT 6 55


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


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



SULIT 7 55


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



SULIT 8 55


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



SULIT 9 55


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)


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



SULIT 10 55



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



SULIT 11 55


(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:



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



SULIT 12 55


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



SULIT 13 55


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


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.


Remarks:1 mark for sketch with label.

1 mark for explanation

2

JUMLAH 10

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peraturan pemarkahan percubaan sbp pt3 2015- sains

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