1

1. Diagram 1 shows test tube P and Q which contain oxygen and carbon dioxide respectively.

Diagram 1

Which of the following shows the correct level of sodium hydroxide solution?

Test tube P Test tube Q A Rises Unchanged B Unchanged Unchanged C Rises Rises D Unchanged Rises

2. Which of the following causes the depletion of

ozone layer and the green-house effect respectively? Depletion of ozone

layer Green-house effect

A Carbon dioxide Chlorofluorocarbon B Carbon monoxide Nitrogen dioxide C Chlorofluorocarbon Carbon dioxide D Carbon monoxide Carbon dioxide

3. Table 1 shows two different energy sources.

Types of energy Renewable / Non-renewable

X Renewable Y Non-renewable

Which of the following are example of energy X and Y?

X Y A Solar Fossil fuel B Biomass Solar C Solar Hydroelectric D Fossil fuel Biomass

4. The following statements shows the characteristics of an animal.

5. Which of the following will maintain the balance of on ecosystem? A Felling of trees B Conservation of forest C Mining activity D Housing project

6. Diagram 2 shows the electrolysis of acidified water.

Diagram 2

Which of the following shows the correct confirmation tests for gas X and Y? Gas X Gas Y A Lime water turns

chalky Red litmus paper turns blue

B A glowing wooden splinter is ignited

A pop sound is produced with a lighted splinter

C A glowing wooden splinter is ignited

Lime water turns chalky

D A lighted splinter is put out

A glowing wooden splinter is ignited

• With hair or fur • Warm-blooded • Breathes with lungs

PMR 2012 SCIENCE

108 MANTRA

2

7. Diagram 3 shows a water treatment plant. Substances X, Y and Z are added into the water.

Diagram 3

What are substances X,Y and Z?

X Y Z A Alum Slaked lime Chlorine B Chlorine Alum Slaked lime C Lime water Alum Chlorine D Slaked lime Chlorine Alum

8. What is the advantage of stereophonic hearing to the animal? A The animal has a wider range of hearing B The animal can detect the sound of

approaching danger C The animal can detect the sound beyond their

hearing range D The animal can detect various sounds clearly

at any one time

Diagram 4

9. Foods are pushed through the oesphagus as shown in the diagram above, which of the following causes the food to move? A Contraction of the oesophagus wall B Air pressure in the oesophagus C The force of the water in the oesophagus D Mucus wall of the oesophagus causes the

movement of foods

10. Diagram 5 shows a boy climbing up a wall.

Diagram 5

The boy manages to climb 400 em in 8 seconds. If the power of the boy is 6 W, calculate the body weight ofthe boy. A 3 N B 8 N C I0 N D 12 N

11. Diagram 6 shows a stem cutting dipped in a

dilute red ink for 30 minutes.

Diagram 6

Which part ofthe stem will be stained red? A Part Y B Part X C Part Z D Parts X and Y

12. Which of the following does not fall into the plant kingdom? A Mushroom B Fern C Moss D Blue-green alga

13. The following are functions of protein except it A insulates the body B helps the body to grow and maintain it C helps in cell repair D aids in enzyme production

3

14. Which of the following is a reptile? A Toad B Platypus C Tortoise D Salamander

15. Diagram7 shows the comparisons of mass

among solid P, Q and R of the same volume.

Diagram 7

Which of the following shows the arrangement of the densities of solids in increasing order? A P, Q, R B P, R, Q C Q, P, R D Q, R, P

16. Diagram 8 shows the particles of material M and

material N.

Diagram 8

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 water D Orange Juice Carbon dioxide

17. Diagram 9 shows a pie chart that represents the composition of air in the atmosphere.

Diagram 9

Which of the following is true about gas X? A Slightly soluble in water B Turns lime water cloudy C Soluble in alkaline pyrogallol solution D Support combustion but does not burn

18. 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

19. Diagram 10 shows a bimetallic strip being

heated.

Diagram 10

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

• Can be radiated • Can travel through a metal • Can travel through a vacuum

4

20. Diagram 11 shows two mirrors J and K which are placed parallel to each other.

Diagram 11

Which is the value of the angle g? A 25° B 35° C 55° D 65°

21. Table 2 shows the X and Y solutions that are

required for the food tests

Food Food Test Milk X

Corn powder Y Table 2

Which of the following are most probably X and Y?

X Y A Iodine solution Benedict’s solution B Ethanol and

water Millon’s reagent

C Millon’s reagent Iodine solution D Benedict’s

solution Millon’s reagent

22. Diagram 12 shows the classification of plants.

Diagram 12

Which of the following is true about P, Q, R and S?

P Q R S A Floweri

ng plant

Non-flowering plant

Mango tree Fungus

B Non-flowering plant

Flowering plant

Dicotyledonous

Fungus

C Flowering plant

Non-flowering plant

Paddy plant Mushroom

D Non-flowering plant

Flowering plant

Monocotyledonous plant

Mushroom

23. Diagram 13 shows an insecticide sprayer

Diagram 13

Which part of the insecticide sprayer has the lowest air pressure when the piston is pushed? A P B Q C R D S

24. Diagram 14 shows a wooden block being pulled

on the surface of a table

Diagram 14

5

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 B Q C R D S

25. 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

26. Diagram 15 shows two types of levers.

Diagram 15

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

27. The graph below shows the growth curve of a human. Which stage represents a form three student?

28. A low protein diet slows down children’s body growth because protein is needed for ….. A preventing anaemia B building strong teeth C building strong bones D building new body tissues

29. Diagram 16 shows three types of vehicles that

run on fuels extracted from petroleum.

Diagram 16

Which of the following states correctly the fuels used by P, Q and R respectively?

P R Z A Diesel Kerosene Petrol B Diesel Petrol Kerosene C Petrol Kerosene Diesel D Petrol Diesel Kerosene

30. Diagram 17 shows a complete electrical circuit.

Diagram 17

Both A1 and A2 show readings of 2A. What is the resistance of Y in ohms? A 1 B 2 C 3 D 4

31. Diagram 18 shows an electrical appliance with its

power and voltage ratings.

Diagram 18

Which of the following fuses is the most suitable to be used for the appliance?

6

32. Diagram 19 shows a beaker filled with water and pieces of paper. When the water is heated, the npieces of paper will move in the direction as shown in Diagram 19.

Diagram 19

Which of the following appliances use this principle? A Icebox B Refrigerator C Thermos flask D Washing machine

33. Which of the following is a permanent

contraceptive method? A Ligation B Spermicides C In Vitro Fertilization (IVF) D Intrauterine contraceptive device (IUCD)

34. Diagram 20 shows a ginger that reproduce by

their vegetative part.

Diagram 20

Which of the plants below reproduce same way as the plant in Diagram 26 ? A Potato B Carrot C Sweet potato D Bryophyllum

35. 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

36. Diagram 21 shows a beaker filled with water. A piece of potassium manganate (VII) crystal is put into the beaker and the water is heated.

Diagram 21 Which of the following shows the direction of movement of the colour produced when the beaker is heated?

37. A food sample is taken from organ Q shown in Diagram 22. After analysis, the pH value of the sampel is 3.

Diagram 22

Which of the following statements explain this condition? A Q secretes hydrochloric acid B Q receives bile from the liver C Enzymes in Q change starch to glucose D Enzymes in Q change fat to fatty acids and

glycerol

Water

Pieces of paper

Bunsen burner

7

38. A box weighing 800 N is lifted to a vertical height of 2.0 m. How much work is done in lifting the box? A 16 J B 400 Nm C 1 600 J D 1 600 N

39. Diagram 23 shows a wooden plank being used to

lift a load. At which point, A, B,C or D, is the least effort needed to lift the load?

Diagram 23

40. The density of iron is 7.9 g/cm3. What is the mass of 20 cm3 of iron? A 99 g B 158 g C 170 g D 198 g

41. Diagram 24 shows an experimental set-up.

Diagram 24

Which of the following properties is correct about R? A R has dull surfaces. B R cannot be reshaped C R is poor conductor of heat D R has very high melting point

42. Diagram 25 shows an experiment.

Diagram 25

Which of the following statements is correct about gas X? A It is odourless but with colour B It is not soluble in sodium hydroxide solution C It has neutral properties towards moist litmus

paper D It turns hydrogen carbonate indicator from red

to yellow

43. Which of the following will happen when a substance cools down? A Heat energy is reversed B Heat energy is released C Heat energy is absorbed D The particles move further apart

44. Diagram 26 shows a graph of body temperature

versus surrounding temperature for an animal.

Diagram 26

Among the following, which is the animal? A Eel B Bat C Toad D Monitor lizard

45. The information below shows three

characteristics of one water purification method

This method is most probably A Boiling B Filtration C Distillation D Chlorination

• Kills microorganisms • Does not get rid of impurities • Sometimes endangers health

8

46. Diagram 27 shows that the length of the spring is 10 cm before it is being pulled. When the spring is pulled, its length becomes 22 cm.

Diagram 27

If the work done is 30 J, how much force is acting on the spring? A 150 N B 200 N C 250 N D 275 N

47. Diagram 28 shows a pumpkin plant.

Diagram 28

Which of the following has the same support system with pumpkin plant? A Roses B Orchid C Cucumber plant D Money plant

48. Which of the following situations shows that the stability increases? A Lean body on a wall. B Shorten a chair’s legs. C Build a racing car’s body from fibre glass D Bend body slightly forward when lifting heavy

object.

49. Diego is an Eskimo living near the North Pole. One day he observes a dazzling displayof light in the sky that lasts for several hours. What is this phenomenon called? A Aurora B Sunspot C Black hole D Solar flare

50. What is formed when a medium-size star dies? A Nebula B Black hole C Neutron star D White dwarf

51. Who was the first human in space?

A Yuri Gagarin B Edwin Aldrin C Michael Collins D Neil Armstrong

52. Diagram 29 shows a space probe.

Diagram 29

A space probe is a spacecraft that A can support life in space B used to launch rockets into space C gathers information and sends it back to Earth D gathers and records data about the Earth from

a distance

53. Which gas has the same percentage in inhaled air and exhaled air? A Nitrogen B Carbon dioxide C Oxygen D Water vapour

54. Diagram 30 shows the longitudanal section of

human blood vessel

Diagram 30

Which statement is true? A It has wall of one cell thick B It has very small lumen C It transports high pressure blood D It transports deoxygenated blood

9

55. Which diagram shows the correct magnetic field lines around a magnet bar?

56. Who is mention in the statement above? A Neil Armstrong B Nicholas Copernicus C Johannes Kepler D Al-Battani

57. Diagram 31 shows a hand holding the

handle of broom.

Diagram 31

Which of the following examples have the same class of lever with the above diagrarm? A Scissors and paper cutter B Bottle opener and wheelbarrow C Fishing rod and ice tongs D lce tongs and paper cutter

58. Diagram 10 shows the apparatus set up for an experiment

Diagram 32

What is the purpose of immersing the leaf in an alcohol? A To break down the cell wall B To remove the chlorophyll C To color the leaf D To soften the leaf

59. Diagram 33 shows an organism.

Diagram 33

Which of the following organisms reproduce in the same way as the organism in diagram 33?

“Father of Modern Astronomy”

10

60. Diagram 34 shows two bar magnets placed side by side to one another

Diagram 34 Two compasses are placed in position P and Q. Which of the following correctly shows the directions of the compass needles P and Q?

61. 3 kW water heater is switched on 3 hours a day. How much is the cost if the water heater is used for 30 days? The charge of one unit of electrical energy is RM 0.30 A RM 2.70 B RM 8.10 C RM 27.00 D RM 81.00

62. The word equation below represents cell

respiration.

What is the percentage of P and Q in the atmosphere? P Q A 78 % 21% B 21% 0.03% C 16% 4% D 21% 4%

63. Copper sulphate crystals cannot be seen when they are mixed with water. This is because … A they react with water B they evaporate quickly into the air C they fill up the space between water

particles D water breaks up the crystals to form a new

substance

64. Diagram 35 shows a set-up apparatus to study the changes in the state of matter.

Diagram 35

What is the process that occurs to the iodine crystals? A Boiling B Sublimation C Evaporation D Condensation

65. Which part of the eyes becomes smaller when

we are coming out from a dark place into a bright room? A Iris B Lens C Pupil D Retina

66. Which of the following best describes the importance of a balanced ecosystem? A It provides fresh air. B It balances the world climate. C It recycles gases and minerals. D It ensures that all living organisms can live

together.

67. After cutting down trees in the jungle for timber, the forests are replanted with young trees. This is the process of … A education B preservation C conservation D pollution control

Glucose + P H2O + Q + energy

11

68. Diagram 36 is a graph which shows the result of an experiment to neutralize the sodium hydroxide solution by using the hydrochloric acid.

Diagram 36

Based on the graph, what is the volume of hydrochloric acid needed to neutralize the sodium hydroxide? A 10cm2 B 15cm2 C 20cm2 D 25cm2

69. Diagram 37 shows the condition of a packet of

chips before and after it is taken from low place to higher place.

Diagram 37

Why is the size of the packet becomes bigger after it is taken to the higher place? A Air pressure outside the packet is lower. B Air pressure inside the packet is lower C Air pressure are both equal inside and

outside. D Air pressure inside and outside the packet is

equal to zero.

70. Which of the following statements regarding force is correct? A Force is the rate of doing work. B Force is a magnet that attracts magnetic

material. C A force can cause an object to change its

direction of motion. D Force is the energy used to change the

shape of an object

71. Diagram 38 shows the condition of a herbaceous plant

Diagram 38

The herbaceous plant wilts because of insufficient … A air in its cells. B food in its cells. C water in its cells. D minerals in its cells.

72. Diagram 39 shows an electric circuit with three

ammeters A1, A2 and A3.

Diagram 39 Which of the following relationship between A1, A2 and A3 is correct? A A2 = A1 + A3 B A1 = A2 – A3 C A2 = A1 – A3 D A3 = A1 + A2

73. Electrical energy is transmitted to consumer at a very high voltage with a small current. Why did this happen? A Increase the speed of transmission. B Reduce resistance set up by the cables. C Reduce heat generated in the cables. D Increase the voltage of the electrical energy.

12

74. Diagram 40 illustrates the death of a large star.

Diagram 40

What happens at Q? A Dying star expands. B Remaining mass of the large star contracts. C Red Giant star explodes. D Red Giant star collapses

75. Which of the following describes what a satellite

could do? A Ability to communicate B Thinning of the ozone layer C Controlling the weather in a country D Preventing ultra violet rays to reach the

Earth

76. Diagram 41 shows one of the harmful effects on Earth resources

Diagram 41

What can be done to overcome the problem? A Replace the usage of chlorofluorocarbon

with hydrochlorofluorocarbon. B Treat and prevent sewage from

contaminating water. C Throw radioactive wastes in the proper way. D Use biological control to kill pest.

77. The diagram shows an experiment to

investigate the percentage of oxygen used by a burning candle.

Diagram 42 Which of the following is the correct percentage of oxygen used? A 20.0% B 33.3% C 40.5% D 70.0%

78. Which of the following has the highest kinetic energy ? A An aeroplane in flight B A charging bull C A falling tree D A moving car

79. The diagram shows an activity carried out by a

student.

Diagram 43

Which of the following conclusion is correct? A Ice is a poor heat conductor B Heat is transferred by convection C Water is a poor conductor of heat D Wire gauze is a good insulator of heat

13

80. Diagram shows the classes of food found in peanut butter.

Diagram 44

What does X represent? A Fat B Carbohydrate C Protein D Vitamin

81. A sugar cane juice is tested with iodine solution and Benedict’s solution.

Iodine solution Benedict’s solution A Dark blue

colour Brick red precipitate is formed

B Dark blue colour

No change

C No change Brick red precipitate is formed

D No change No change

82. The diagram shows a girl of weight 400 N carrying 50 N load walking up a staircase.

Diagram 45 Calculate the power of the girl if she takes 20 seconds to reach the top of the staircase. A 120 W B 135 W C 150 W D 225 W

83. The diagram below shows two types of animals.

Diagram 46

A Exoskeleton B Endoskeleton C Water buoyancy D Hydrostatic

84. Diagram below shows a participant lifting a

weight.

Diagram 47

How can he increase his stability ? A Taking off his clothes B Widening the distance between his legs C Bending his body forward slightly D Decreasing the distance between his two

hands

85. Diagram below shows a rod, AB which is hung at point B.

Diagram 48

What is the quantity of force required to balance the rod? A 45 N B 70 N C 105 N D 420 N

86. Which of the following causes addiction to

smokers? A Tar B Nicotine C Carcinogen D Carbon monoxide

14

87. The diagram shows a section of an alveolus in

human lung.

Diagram 49

Which region has the highest oxygen concentration? A P B Q C R D S

88. What is meant by transpiration? A Absorption of water by roots B Loss of water vapour from the leaves. C Transport of water from the roots to the

leaves. D Excretion of water droplets from the veins of

leaves

89. Which of the following substance is present in the urine of a diabetic patient ? A Glucose B Mineral salts C Urea D Uric acid

90. Which substance is removed through P at

night?

Diagram 50

A Oxygen B Carbon dioxide C Sulphur dioxide D Carbon monoxide

91. Four test tubes P, Q, R and S are prepared for

an experiment

Diagram 51

Which test tube will show the germination of seeds after three days? A P B Q C R D S

92. A newborn baby has the following

characteristics.

• Smaller in size • Mentally and physically retarded • Premature baby

What can you predict about the habit of the baby’s mother during pregnancy? A She often drinks alcohol B She smokes occasionally C She takes too much Folic acid D She drinks too much carbonated drink

93. The diagram below shows the human menstrual cycle. Based on the calendar given, calculate the date when the ovulation process occurs if menstruation fall on the date of 10th October 2006.

A 20th October 2006 B 23rd October 2006 C 14th October 2006 D 26th October 2006

15

94. Which of the following pairs is correctly matched ?

95. The following information describes a process.

• A change in the body shape and body function

• An increase in the body size, number of cells and weight

The process is . A Growth B Ovulation C Reproduction D Implantation

96. Which of the following is the correct graph for growth in human beings?

97. How is a black hole formed? A When a white dwarf dies B When a red giant dies C When a super-giant star dies D When a neutron star dies

98. What is a star?

A A body in the outer space which gives out its own light and heat.

B Dot of light shinning in the sky at night C A huge solid ball in the outer space D A huge ball of gas in the outer space

99. Diagram 53 shows a washing machine with a power rating of 960 W 240V.

Diagram 53

Calculate current flowing through a washing machine. A 3A B 4A C 5A D 6A

100. Diagram 54 shows the heating of zinc with

sulphur.

Diagram 54

What is formed when zinc reacts with sulphur? A Zinc oxide B Zinc sulphide C Zinc carbonate D Zinc sulphate

101. Which of the following compounds does not

decompose when heated strongly? A Zinc oxide B Lead sulphide C Copper carbonate D Calcium carbonate

16

102. Diagram 55 shows the female reproductive

system.

Diagram 55

What processes occur at P? A Ovulation B Implantation C Fertilisation D Ligation

103. Which of the following statement is true about

multicellular organism? A Paddy plant is a multicellular organism B All plants are multicellular organisms C All animals are multicellular organisms D All multicellular organisms live on land

104. The hearing ability of the elderly is usually less

sensitive because A the ear ossicles have fused together B the cochlea is damaged C the eardrum became less elastic D the fluid in the semicircular canal decreases

105. Too much carbon dioxide in the air will cause a

rise in the earth’s temperature. This is known as A air pollution B water pollution C greenhouse effect D depletion of ozone layer

106. Diagram 56 shows the pH scale and the pH

value of some substances.

Diagram 56 Which of the following represents P? A Tomato B Toothpaste C Lime water D Milk of Magnesia

107. Diagram 57 shows a cross section of the stem

of a plant.

Diagram 57

State the function of structure P. A Enables the plant to float B Enables the plant to breathe C Enables the plant to transport food D Enables the plant to absorb minerals

108. What is the moment of force if a minimum force of 50 N is applied to pull the nail as shown in Diagram 58?

Diagram 58

A 3 Nm B 4 Nm C 5 Nm D 24 Nm