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BAHAGIAN PENGURUSAN
SEKOLAH BERASRAMA PENUH DAN SEKOLAH KLUSTER
KEMENTERIAN PELAJARAN MALAYSIA
PEPERIKSAAN PERCUBAAN PMR 2009 55/1
Satu jam
JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU
1. Kertas soalan ini adalah dalam Bahasa Inggeris .
2. Calon dikehendaki membaca maklumat di halaman belakang kertas soalan ini.
Kertas soalan ini mengandungi 20 halaman bercetak
SCIENCE
Kertas 1
Ogos
1 jam
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1. Diagram 1 shows a hazard symbol.
Diagram 1
Which of the following substances is labelled with the symbol?
A Ethanol
B Mercury
C Ammonium solution
D Concentrated sulphuric acid
2. Diagram 2 shows the sequence of cell organisation in humans.
Diagram 2
Which pair of organ X and system Y is matched correctly?
Organ X System Y
A Eye Nervous
B Lung Respiratory
C Liver Skeletal
D Kidney Digestive
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3. Diagram 3 shows the comparisons of mass among solid P, Q and R of the same volume.
Diagram 3
Which of the following shows the arrangement of the densities of solids in increasing order?
A P, Q, R
B P, R, QC Q, P, R
D Q, R, P
4. Diagram 4 shows the particles of material M and material N.
M N
Diagram 4
Which of the following material is true about material M and material N?
M N
A Orange juice Gold
B Gold Sea water
C Carbon dioxide Sea waterD Orange Juice Carbon dioxide
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5. Diagram 5 shows a pie chart that represents the composition of air in the atmosphere.
Diagram 5
Which of the following is true about gas X?
A Slightly soluble in water
B Turns lime water cloudy
C Soluble in alkaline pyrogallol solutionD Support combustion but does not burn
6. The information below shows the characteristics of energy.
Which form of energy has the characteristics shown above?
A Sound energy
B Heat energy
C Light energy
D Chemical energy
- Can be radiated
- Can travel through a metal
- Can travel through a vacuum
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7. Diagram 6 shows a bimetallic strip being heated.
Diagram 6
Why would the bimetallic strip bend when it is heated?
A Metal Y is hotter than metal X
B Metal X expands more than metal Y
C The size of atoms increases more in metal X than that of metal Y
D The kinetic energy of the atoms in metal Y increases more than that of metal X
8. Diagram 7 shows two mirrors J and K which are placed parallel to each other.
Diagram 7
Which is the value of the angle g?
A 25
B 35
C 55
D 65
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9. Table 1 shows the X and Y solutions that are required for the food tests.
Food Food Test
Milk X
Corn powder Y
Table 1
Which of the following are most probably X and Y?
X Y
A Iodine solution Benedicts solution
B Ethanol and water Millons reagent
C Millons reagent Iodine solution
D Benedicts solution Millons reagent
10. Diagram 8 shows the classification of plants.
Diagram 8
Which of the following is true about P, Q, R and S?
P Q R S
AFlowering plant Non-flowering plant Mango tree Fungus
B Non flowering
plantFlowering plant Dicotyledonous Fungus
CFlowering plant Non-flowering plant Paddy plant Mushroom
DNon-flowering plant Flowering plant
Monocotyledonous
plantMushroom
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11. Diagram 9 shows a pyramid of numbers.
Diagram 9
As the level goes higher in a pyramid of numbers,
A more energy is lost in each level
B the size of the organisms in each level decreases
C the number of organisms in each level increasesD the mass of the organisms in each level decreases
12. Diagram 10 shows two pieces of wet filter paper that are hung under the sun.
Diagram 10
It is observed that P dries first. This is probably because
A air circulation at P is faster
B P receives more heat than Q
C the exposed surface area for P is larger
D the air around Q is more humid than P
wet filter paper
string
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13. Diagram 11 shows an insecticide sprayer.
Diagram 11
Which part of the insecticide sprayer has the lowest air pressure when the piston is pushed?
A P
B Q
C R
D S
14. Diagram 12 shows a wooden block being pulled on the surface of a table.
Diagram 12
Based on the diagram, which of the arrows labeled P,Q,R and S represent the direction in which
a frictional force is exerted?
A P C R
B Q D S
15. Which of the following groups of organisms has the same method of support?
A Camel, elephant, crab
B Water lily, lotus, duckweed
C Prawn, cockroach, caterpillar
D Bougainvillea plant, pea plant, maize plant
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16. Diagram 13 shows four wooden tables.
Diagram 13
Based on the picture above, arrange the tables in descending order of stability.
A M, K, L, J
B M, L, K, J
C J, K, L, M
D J, L, K, M
17. Diagram 14 shows two types of levers.
Diagram 14
Which of the following tools represent X and Y ?
X Y
A A fishing rod A nutcracker
B A broom A paper cutter
C Scissors A wheelbarrow
D A claw hammer A fishing rod
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18. What property of alveoli enables oxygen to diffuse through the walls of alveoli easily?
A The alveoli have small surface areas and thin walls
B The alveoli are made up of a network of blood capillaries
C The alveoli consist of many living cells which are involved in the diffusion process
D The alveoli are surrounded by a network of capillaries which possess very thin walls
19. Which of the following is true about the aorta?
A It is the smallest artery in the human body
B It has a large lumen with thin muscular walls
C It has many valves that allow blood to flow in one direction.
D It carries oxygenated blood from the heart to all parts of the body
20. Diagram 15 shows a cross section of a stem.
Diagram 15
Which of the following is true about tissue M and N.
Tissue M Tissue N
A Transport water Transport food
B Transport food Transport water
C Soft living tissue Long hollow tissue
D Does not provide support forplants
Provides support for plants
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21. The graph below shows the growth curve of a human.Which stage represents a form three student?
22. Pollination is the ..
A germination of pollen grains and ovule.
B fusion of male and female gamete in the ovary.
C transfer of pollen grains from the anther to the stigma.
D transfer of pollen grains from the stigma to the anther.
23. Mother's breast milk is ideal for a baby because it ..
A is rich in fibre.
B supplies oxygen to the baby.
C contains a high amount of iron.D contains the most nutrients needed by a baby.
24. A low protein diet slows down childrens body growth because protein is needed for ..
A preventing anaemia
B building strong teeth
C building strong bones
D building new body tissues
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25. In which of the following parts do plants store their waste products ?I. Leaf
II. Stem
III. Fruit
A I and II only
B I and III only
C II and III onlyD I, II and III
26. Diagram 16 below, shows one of the excretory organs in humans.
Diagram 16
What are the excretory products from the organ shown above?
A Water only
B Water and carbon dioxide
C Water, mineral salts and urea
D Water, mineral salts, glucose and urea
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27. Diagram 17 shows the apparatus set-up to investigate the reaction between magnesium andoxygen.
Diagram 17
Why is the magnesium powder being heated first?
A To melt it
B To turn it into gas
C To make it react with the potassium manganate (VII)D To make it hot enough and ready to react with oxygen
28. Diagram 18 shows three types of vehicles that run on fuels extracted from petroleum.
P Q R
Diagram18
Which of the following states correctly the fuels used by P, Q and R respectively?
P Q R
A Diesel Kerosene Petrol
B Diesel Petrol Kerosene
C Petrol Kerosene Diesel
D Petrol Diesel Kerosene
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29. Diagram 19 shows a complete electrical circuit.
Diagram19
Both A1 and A2 show readings of 2A. What is the resistance of Y in ohms?
A 1
B 2
C 3
D 4
30. Diagram 20 shows a positively-charged electroscope.
Diagram 20
A polythene rod which has been rubbed with a piece of woollen cloth is brought close to the
metal cap of the electroscope.
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Which of the following shows the most likely final position of the gold leaf?
A
B
C
D
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31. Diagram 21 shows a cable that transmits electrical power from the power station to the
consumer.
Diagram 21
The position of the step-down transformer is at
A P only.
B Q, R and S only.
C Q, R, S and T only.
D P, Q, R, S and T.
32. Diagram 22 shows an electrical appliance with its power and voltage ratings.
Diagram 22
Which of the following fuses is the most suitable to be used for the appliance?
A
B
C
D
3 A
5 A
10 A
13 A
11 kV132
kV33 kV 415 V 240 V
11 kV
P Q R S
TPowerstation
Lightindustry Residential
Heavy
industry
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33. Diagram 23 shows the internal structure of a 3-pin plug and the wires connected to it.
Diagram 23
What are the colours of the wires W, X and Y according to the International Colour Code for
Wires used in this country?
W X Y
A Brown Black Green
B Blue Green with yellow stripes Brown
C Brown Blue Yellow with green stripesD Red Brown Blue
34. Which of the following units is used to measure heat?
A Joule (J)
B Kelvin (K)
C Fahrenheit (F)
D Degree celsius (C)
35. Diagram 24 shows a beaker filled with water and pieces of paper. When the water is heated, the
pieces of paper will move in the direction as shown in Diagram 24.
Diagram 24
Which of the following appliances use this principle?
A Icebox
B Refrigerator
C Thermos flask
D Washing machine
Water
Pieces of paper
Bunsen burner
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36. The pie chart in Diagram 25 below shows the constituents of the different classes of food in
food sample X.
Diagram 25
Which of the following statements is true?
A Food X is rice
B Food X is essential for growing toddlers
C Food X shows a positive result when tested with Benedict solutionD Food X provides more energy than the energy provided by carbohydrates.
37. Which of the following is a permanent contraceptive method?
A Ligation
B Spermicides
C In Vitro Fertilization (IVF)
D Intrauterine contraceptive device (IUCD)
38. Diagram 26 shows a ginger that reproduce by their vegetative part.
Diagram 26
Which of the plants below reproduce same way as the plant in Diagram 26 ?
A Potato
B Carrot
C Sweet potato
D Bryophyllum
Protein
Water
Fat
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39. Which of the following statements is true about prominences?
A They emit gamma rays
B They last for a few years
C They occur in the inner layer of the sun
D They throw out matter from the Sun into space
40. In 1996, Malaysia launched a satellite called MEASAT as shown in Diagram 27.
Diagram 27
What is the satellite used for?
A To explore planets
B To obtain data on the universe
C To carry out experiments in space
D To help in broadcasting and communication services.
END OF QUESTION PAPER
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INFORMATION FOR CANDIDATES
1. This question paper consists of40 questions.
2. Answer all questions.
3. Each question is followed by four alternative answers, A, B, C or D. For each question, choose oneanswer only. Blacken your answer on the objective answer sheet provided.
4. If you wish to change your answer, erase the blackened mark that you have made. Then blacken thenew answer.
5. The diagrams in the questions provided are not drawn to scale unless stated.
6. You may use a non-programmable scientific calculator.
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55/2 2009 Hak Cipta Bahagian Pengurusan Sekolah Berasrama Penuh dan Sekolah Kluster SULIT
PEPERIKSAAN PERCUBAAN PMR 2009 55/2
TINGKATAN 3SCIENCE
Kertas 2
Ogos
1
jam Satu jam tiga puluh minit
BAHAGIAN PENGURUSAN
SEKOLAH BERASRAMA PENUH DAN SEKOLAH KLUSTER
KEMENTERIAN PELAJARAN MALAYSIA
JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU
Kertas soalan ini mengandungi 19 halaman bercetak
[Lihat sebelah
1. Tulis nama penuh dan tingkatan andapada ruangan yang disediakan.
2. Kertas soalan ini adalah dalam BahasaInggeris.
3. Calon dikehendaki membaca maklumat dihalaman belakang kertas soalan ini.
Untuk Kegunaan Pemeriksa
Kod Pemeriksa:
Bahagian SoalanMarkah
Penuh
Markah
Diperoleh
A
1 6
2 6
3 6
4 6
5 8
6 8
B7 10
8 10JUMLAH 60
NAMA PELAJAR
TINGKATAN
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Section A
[40 marks]
Answer all questions.
1 Diagram 1 shows three instruments, J, K and L which are commonly used in the
laboratory.
Diagram 1
(a) (i) On Diagram 1, label the apparatus, J, K and L using the following words:
[ 3 marks ]
(ii) Based on your answer in (a) (i), which of the instruments is used to measurethe volume of a liquid?
.............................................................................................................................
[1 mark]
(b) Draw lines to match the instruments with their respective functions.
Instrumets Function
[2 marks]
Measuring cylinder Evaporating dish Filter funnel
J: K: L:
To support apparatus during heating
To measure temperature
To conduct the excess heat away
To measure time
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2 Diagram 2.1 shows the classification of nutritious food in a Food Pyramid.
Diagram 2.1
(a) State the importance of using a food pyramid.
........................................................................................................................................
[1 mark]
(b) (i) What is the function of food class X?
..............................................................................................................................
[1 mark]
(ii) What happens if an individual lacks class food X in his daily diet?
..............................................................................................................................
[1 mark]
(c) Diagram 2.2 shows a person suffering from a kind of disease.
Diagram 2.2
Which class of food will cause the disease in Diagram 2.2 if taken excessively in
our daily diet?
.....................................................................................................................................
[1 mark]
X
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(d) (i) A student was given few food samples by his teacher.
How can he test the presence of carbohydrates in the food sample?
...........................................................................................................................
[1 mark]
(ii) State the end product of digestion of carbohydrates in the small intestine?
...........................................................................................................................
[1 mark]
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3 Diagram 3.1 shows a food chain in the oil palm estate.
Oil palm tree Mouse Owl
Diagram 3.1
(a) (i) What is the main energy source for this food chain?
.............................................................................................................................
[1 mark]
(ii) Write down the energy changes when the oil palm leaf absorbs sunlight
during photosynthesis.
............................................................................................................................
[1 mark]
(b) (i) Owls are used to control the mouse population in the oil palm estate.
State the method used.
............................................................................................................................
[1 mark]
(ii) State one advantage of the method you mentioned in (b)(i).
............................................................................................................................
[1 mark]
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(d) Diagram 3.2 shows a pyramid of numbers.
Diagram 3.2
Complete the pyramid of numbers to represent the food chain in Diagram 3.1.
[1 mark]
(e) If all owls migrate to another place, state another organism that can be introduced
to control the mouse population in this oil palm estate.
.....................................................................................................................................
[1 mark]
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4 Diagram 4 shows an appliance that uses the principle of air pressure.
Diagram 4
(a) (i) Name the apparatus in Diagram 4.
...........................................................................................................................
[1 mark]
(ii) State the use of the apparatus.
...........................................................................................................................
...........................................................................................................................
[1 mark]
(b) On Diagram 4, mark the symbols:
for high pressure
for low pressure
[2 marks]
(c) Can the apparatus function properly if the rubber tube is not filled with water?
Explain.
.....
.
[2 marks]
HP
LP
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5 Diagram 5.1 shows an experiment conducted on a balsam plant.
Diagram 5.1
(a) (i) What happens if a fresh balsam plant is left in beaker R for two hours?
...............................................................................................................................
[1 mark]
(ii) Predict what will happen to the balsam plant if water is poured into beaker R?
...............................................................................................................................
[1 mark]
(iii) What can you infer from your observation in (a) (ii) above?
...............................................................................................................................
[1 mark]
(iv) State the support system in a balsam plant?
...............................................................................................................................
[1 mark]
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(b) (i) Diagram 5.2 shows the same aquatic plant in two different situations.
Diagram 5.2
State your observation in situation A and situation B ?
...............................................................................................................................
[1 mark]
(ii) What is the inference for your observation in (b)(i) above?
...............................................................................................................................
[1 mark]
(iii) What makes the aquatic plant in situation B stand upright?
...............................................................................................................................
[1 mark]
(c) What is the function of the support system in both plants in this experiment?
..........................................................................................................................................
[1 mark]
Situation A Situation B
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6 Diagram 6 shows the set-up apparatus to determine the action of heat on plumbum
sulphide.
Diagram 6
(a) (i) Describe the colour change of the acidified potassium manganate (VII)
solution.
...........................................................................................................................
[1 mark]
(ii) Name the solution that can be used to substitute the acidified potassium
manganate (VII) solution.
.........................................................................................................................
[1 mark]
(iii) Name the white residue produced after plumbum sulphide is heated.
...........................................................................................................................
[1 mark]
(b) State the two elements found in plumbum sulphide.
(i) ........................................................................................................
(ii) .........................................................................................................
[2 marks]
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(c) Write the word equation for the reaction of heat on plumbum sulphide.
heat
+ Oxygen +
[2 marks]
(d) Give one example of a chemical compound that can replace plumbum sulphide in
this experiment.
.....................................................................................................................................
[1 mark]
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Section B
[20 marks]
Answerall questions.
7 (a) Diagram 7.1 shows four organisms, P, Q, R and S that reproduce in differentways.
Diagram 7.1
State one characteristic that can be observed from any three organisms by
referring to their way of reproduction.
Organisms Way of Reproduction
.........................................................................................
.........................................................................................
.........................................................................................
[3 marks]
R S
P Q
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(b) Classify the organisms, P, Q, R and S into groups based on their common
characteristics.
[4 marks]
P, Q, R and S
Common
characteristics
Name of organisms
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(c) Diagram 7.2 shows three conditions, J, K and L, for germination of seeds.
J K L
Diagram 7.2
Based on Diagram 7.2:
(i) State one inference about the condition required for germination of seeds.
[1 mark]
(ii) Predict which condition is the most suitable for the seeds to germinate.
[1 mark]
(iii) State the relationship between the presence of water and air with the
germination of seeds.
[1 mark]
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SULIT 55/2
55/2 2009 Hak Cipta Bahagian Pengurusan Sekolah Berasrama Penuh dan Sekolah Kluster [Lihat sebelah
SULIT
15
8
.
(a) Diagram 8.1 shows two circuits P and Q that have different numbers of bulbs.
P Q
Diagram 8.1
The brightness of bulbs in two circuits is observed.
State one inference about the brightness of the bulbs.
...
[1 mark]
(b) Diagram 8.2 shows an electrical circuit set up to study the relationship betweenthe length of nichrome wire and current flow.
Diagram 8.2
The steps of the experiment are as follows:
1. The crocodile clip is touched on the nichrome wire at the length of 10 cm.
2. The ammeter reading is recorded.
3. Step 1 and step 2 are repeated by increasing the length of nicrome wire at
20 cm, 30 cm and 40 cm respectively.
The results are shown in Table 8.3.
Length of nichrome wire (cm) Ammeter reading (A)
10 0.85
20 0.80
30 0.75
40
Table 8.3
Nichrome wire
Ammeter
Bulb
Crocodile clip
Metre ruler
Dry cells
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SULIT 55/2
55/2 2009 Hak Cipta Bahagian Pengurusan Sekolah Berasrama Penuh dan Sekolah Kluster [Lihat sebelah
SULIT
16
Diagram 8.4 shows the ammeter reading when the length of nichrome wire
is 40 cm.
Diagram 8.4
Based on Table 8.3 and Diagram 8.4:
(i) Record the ammeter reading for 40 cm length of wire used in Table 8.3.
[1 mark]
(ii) Use the graph paper provided on page 17 to answer this part of the question.Based on the readings in Table 8.3, plot a graph to show the relatioship
between the length of nichrome wire against current flow.
[2 marks]
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SULIT 55/2
55/2 2009 Hak Cipta Bahagian Pengurusan Sekolah Berasrama Penuh dan Sekolah Kluster [Lihat sebelah
SULIT
17
Graph for Question 8(b)(ii)
10 20 30 40 50
Current(A)
0.8
0.6
0.4
0.2
Length of nichrome wire (cm)
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SULIT 55/2
55/2 2009 Hak Cipta Bahagian Pengurusan Sekolah Berasrama Penuh dan Sekolah Kluster [Lihat sebelah
SULIT
18
(iii) Based on the graph drawn in 8(b)(ii), state the relationship between the length of
nichrome wire and current.
....................................................................................................................................
....................................................................................................................................
[1 mark]
(iv) State the manipulated variable involved in this experiment.
....................................................................................................................................
[1 mark]
(v) Predict the ammeter reading if 50 cm nichrome wire is used in the circuit.
....................................................................................................................................
[1 mark]
(vi) Define operationally the current.
....
[1 mark]
(vii) In the box provided draw a circuit diagram to show a parallel circuit by using the
symbols for the following components.
[2 marks]
END OF QUESTION PAPER
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SULIT 55/2
55/2 2009 Hak Cipta Bahagian Pengurusan Sekolah Berasrama Penuh dan Sekolah Kluster [Lihat sebelah
SULIT
19
INFORMATION FOR CANDIDATES
1. This question paper consist of two sections: Section A and Section B.
2. Answer all questions in both sections.
3. Write your answers in the spaces provided in the question paper.
4. Show your working, it may help you to get marks.
5. If you wish to change your answer, neatly cross out the answer that you have done. Then
write down the new answer.
6. The diagrams in the questions provided are not drawn to scale unless stated.
7. Marks allocated for each question or sub-part of a question are shown in brackets.
8. The time suggested to complete Section A is 60 minutes and Section B is 30 minutes.
9. You may use a non-programmable scientific calculator.
10. Hand in this question paper to the invigilator at the end of the examination.
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PEPERIKSAAN PERCUBAAN PMR 2009
SKEMA PEMARKAHAN
SAINS
(KERTAS 1 & KERTAS 2)55/1 & 55/2
BAHAGIAN PENGURUSAN SEKOLAH BERASRAMA PENUH DAN SEKOLAH KLUSTER
KEMENTERIAN PELAJARAN MALAYSIA
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SCIENCE PMR (SBP)
PERCUBAAN PENILAIAN MENENGAH RENDAH 2009
SKEMA JAWAPAN KERTAS 1
BIL KONSTRUK ARAS JAWAPAN STIMULUS1 PSNR010103 R A DIAGRAM
2 PSNR010201 S B DIAGRAM
3 PSNR010201 R D DIAGRAM
4 KSNR010501 T C DIAGRAM
5 KSNR010401 S B DIAGRAM
6 PSNR010102 S B
7 KSNR010401 S B DIAGRAM
8 KSNR010201 T C DIAGRAM
9 KSNR010401 S C TABLE
10 PSNR010202 S A DIAGRAM11 PSNR010202 S A DIAGRAM
12 KSNR010201 S C DIAGRAM
13 PSNR010301 R B DIAGRAM
14 PSNR010301 R C DIAGRAM
15 PSNR010203 R B
16 PSNR010201 S D DIAGRAM
17 KSNR010101 T D DIAGRAM
18 KSNR010401 S D
19 PSNR010102 S D
20 KSNR010501 S A DIAGRAM
21 KSNR010201 S C GRAPH
22 PSNR010101 R C
23 PSNR010102 R D
24 PSNR010102 R D
25 KSNR010501 S D
26 KSNR010501 S C DIAGRAM
27 KSNR010401 S D DIAGRAM
28 KSNR010501 S D DIAGRAM
29 KSNR020101 T C DIAGRAM
30 KSNR020101 S B DIAGRAM
31 KSNR010401 S C DIAGRAM32 KSNR020101 T B DIAGRAM
33 PSNR010102 R C DIAGRAM
34 PSNR010102 R A DIAGRAM
35 KSNR010101 T B DIAGRAM
36 KSNR010201 T B DIAGRAM
37 PSNR010102 R A
38 KSNR010101 S A DIAGRAM
39 PSNR010102 R D
40 PSNR010101 R D DIAGRAM
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SKEMA JAWAPAN KERTAS 2
QUESTIONS RUBRIC MARKS
1 (a) (i) J : Filter funnel
K: Measuring cylinder
L : Evaporating dish* Spelling must be correct
1
1
1 3
(ii) Measuring cylinder / K 1 1
(b)
1
1
2
TOTAL 6
2 (a) Help people to plan a (healthy) balance diet 1 1
(b) (i) - (Needed) for growth //
- Repair body tissues //
-(Required) for the formation of enzymes/ hormones/
antibodies/ haemoglobin
Any suitable answer
1
2
(ii) Kwashiorkor * Spelling must be correct 1
(c) Fat // Carbohydrate 1 1
(d) (i) - Drop iodine solution on the food sample, it will turn to
blue black/ dark blue//
- Turns iodine solution to blue black/ dark blue
1
2
(ii) Glucose 1
TOTAL 6
3 (a) (i) Sunlight 1 1(ii) Light energy changes to chemicals energy /
light energy chemical energy
11
(b) (i) Biological control 1 1
(ii) - Does not pollute air (environment) //
- Does not kill other organisms except pests //
- Cheap / affordable*Accept any suitable answer
1
1
To support apparatus during heating
To measure temperature
To conduct the excess heat away
To measure time
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(c) (i) 1
1
(ii) Snakes / Cats
*Accept any suitable answer.
11
TOTAL 6
4 (a) Siphon 1 1
(b) To transfer water (liquid) from a high level to a lower level 1 1
(c) 2
2
(d) No.
- The air pressure in the rubber tube will prevent the waterfrom flowing //
- The air pressure in the rubber tube is the same as the
atmospheric pressure
1
12
TOTAL 6
5 (a) (i) It will wilt / droop / unable to remain firm / unable to stay
upright
1
3
(ii) It will be firm and remain/ stay upright / look fresh/ not
droop
1
(iii) - Balsam plant needs water to stand upright //
- Turgidity of the balsam plant depends on the presence
of water
- The balsam plant can stay upright because there is
support by turgidity of water
1
(iv) The turgidity of cells / cell turgidity 1 1
(b) (i) In situation A aquatic plant cannot stand upright on its own
whereas in situation B the aquatic plant stand upright
1
3(ii) - Aquatic plant needs water in order to stand upright
- The aquatic plant can stand upright because there is
support from water (buoyancy)
1
Owl
Mouse
Oil palm tree
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(iii) Buoyant force of water / buoyancy of water 1
(c) To support its/ the plants body weight 1 1
TOTAL 8
6 (a) (i) Purple to/ colourless/
The purple colour of acidified potassium manganate (VII)
solution is bleached
1
3(ii) Acidified potassium dichromate (VI) solution 1
(iii) Plumbum oxide 1
(b) (i)
(ii)
Plumbum
Sulphur
1
12
(c) heat
Plumbum sulphide + Oxygen Plumbum oxide +
sulphur dioxide
- All 3 answers are correct 2 marks
- Any 2 answers are correct 1 mark
2
2
(d) Zinc sulphide (Blende) // Magnesium sulphide // Iron
Sulphide (Pyrite) // Copper sulphide (Chalcocite)
*Accept any suitable answer.
1
1
TOTAL 8
7 (a)
*Accept any 3 correct answers
Organism Way of Reproduction
Amoeba Asexual (reproduction) //
Binary fission
Frog Sexual (reproduction)
Housefly Sexual (reproduction)Starfish Asexual (reproduction) //
Regeneration
1
1
11
3
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(b)
*Accept any suitable answer
4
(c) (i) Germination of seeds depends on the presence of water and
air/ oxygen
1
3(ii) J / Test tube with wet cotton wool 1
(iii) The seed will germinate with the presence of water and air/
oxygen/
The seeds need water and air /oxygen to germinate
1
TOTAL 108 (a) The brightness of the bulbs depends on the number of bulbs
(arranged in the circuit) //
Bulbs in circuit P are brighter because there are less number
of bulbs (compare to circuit Q) // (vice versa)
The more bulbs (arranged in the circuit), the less brighter
the bulb (vice versa)
1
1
(b) (i) 0.7 // 0.70 1 1
(ii) Refer to the Appendix 1 2 2
P, Q, R and S
Asexual reproduction/
Not reproducesexually/ Reproduce
asexually //
Not reproduce by
binary fission //
Not reproduce by
regeneration
Sexual reproduction /
Reproduce sexually //
Reproduce by binary
fission //
Reproduce by
regeneration
Amoeba, Starfish//
Frog, Housefly/ fly,
Starfish //
Frog, Housefly/ fly,
Amoeba
Frog, Housefly/ fly //
Amoeba //
Starfish
Common
characteristics
Name
of
organisms
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(iii) The longer the length of nichrome wire, the lower the
current // (vice versa)
1 1
(iv) Length of nichrome wire 1 1
(v) 0.65A (unit is compulsory) 1 1
(vi) Current is the reading of the ammeter / ammeter reading 1 1
(vii)
- Correct symbols drawn 1m- Correct connection of circuit 1m
1
12
TOTAL 10
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APPENDIX for Question 8 (c)
- All four points are correctly transferred 1m- A straight smooth line joining all the points 1m
END OF MARKING SCHEME
Current(A)
0.8
0.6
0.4
0.2
Length of nichrome wire (cm)
10 20 30 40 50
X
X
X
X
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