PMR 2010
Transcript of PMR 2010
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Score make easy
PMR
(SCIENCE PAPER 2)
55/255/2
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Do and don’t during exam
• Be on time!
• Be prepared!
-Have your pens, pencils, eraser, other required supplies with you.
• No eating or drinking in exam hall!• No eating or drinking in exam hall!
• No cell phones or music-playing devices in exam hall!
• Be courteous to others!
- Listen while others are speaking.
- Raise your hand if you wish to ask a question.
- Don’t be unnecessarily loud and boisterous.
- Stay on-task. Don’t distract people from their work.
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Understand questions
1. menyenaraikan ciri-ciri (characteristic)
2. menyatakan sebab atau alasan (give reason/ why)
3. menerangkan pernyataan (state/ give detail/ describe/ explain)menyenaraikan contoh2 (give examples)
4. menyatakan definisi (define/ give meaning)
5. menyatakan lokasi (where/ define location)
6. menyatakan proses (how)menyatakan fungsi (give function)6. menyatakan proses (how)menyatakan fungsi (give function)
7. menyatakan pemerhatian (state observation)
8. beri cadangan (give suggestion/ state other ways to ...)
9. membanding (compare and contrast)
10. menyatakan jenis (define type)
11. membuat pengiraan (show calculation)
12. menyatakan perkaitan (state relationship)
13. membuat andaian (give prediction)
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Question 1
Test basic knowledge.
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• Able to
use the
words in
the box to
state the state the
situation
of the pair
of balls.√√√√√√√√ √√√√√√√√ √√√√√√√√
[3 marks]
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• Able to (√) in
the boxes
below the √√√√√√√√ below the
items that
produce
electrostatic.
√√√√√√√√
√√√√√√√√
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• Able to (√) in the correct box the meaning of
electrostatic
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Question 2
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• Able to state
what happen to
the size of the
silica after
stirring.
• Suggested
answers:answers:
1. No change
//Tiada
perubahan
2 . Unchanged
//Tidak
berubah
3 . Same // Sama
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1. Silicon // Silika1. Silicon // Silika
2. Oxygen // Oksigen
one property of silicaAble to state one property of silica
Suggested answers:
1 . Does not dissolve // Tidak terlarut
2 . Insoluble // Tidak larut
3 . Not soluble in water // Tidak larut dalam air
2. Oxygen // Oksigen
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(i) Able to state the
effect of heating on
lead sulphide
Suggested answers:
Heat breaks down lead
sulphide.
(ii) Able to name gas
Q
Answer:
Sulphur dioxide
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Question 3
Analysing
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• two• Able to state twobenefits the organism gets from the interaction
Suggested answers :Suggested answers :
1. Gets a place to grow
2. Helps to get sunlight
[Accept any
reasonable answer]
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(i) Able to name
interaction Y
Answer
• Prey-predator //
Mangsa dan
pemangsa
(ii) Able to state one
advantage of prey-
predator
Suggested answers:
1. Does not affect
human's health .
2. Does not affect or
kill other organisms
3. Does not cause
pollution
4. Not costly //cheap
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(iii) Able to explain why
guppy fish is placed in a
pond.
Suggested answers
1. To control the
population of larvae
2. Acts as a biological
control
[Accept any reasonable
answer]answer]
(iv) Able to differentiate
between mutualism and
parasitism
Suggested answers:
Mutualism gives benefit to
both organisms but the host
is harmed in parasitism .
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Question 4
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Able to state the
type of energy
produced by all the
activities.
Answer :Answer :
Heat energy
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(i) Able to state the
changes on state of the
candle
Suggested answers:
Solid� Liquid� solid
(ii) Able to state the
physical process of P
Answer:Answer:
Melting
(iii) Explain what happens
to the candle particles
during process P
Suggested answer:
Vibrate faster
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Able to explain what happens to the water particles during Able to explain what happens to the water particles during
the process of making ice cubes.
Suggested answers
1. Water particles release heat energy.
2. The kinetic energy decreases .
3. The particles becomes closer together
[Any two]
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Question 5
Comparing
Inferring
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Able to compare the taste of the two foodAble to compare the taste of the two food
Answer
• Lemon is sour, bitter gourd is bitter // Limau masam, peria pahit
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(i) Able to name
the gas produced in
the activity
Answer:
Hydrogen gas
(ii) Able to give one
reason why lime
metal
reason why lime
juice is able to
remove rust from
the rusty knife
Suggested answer:
Lime juice reacts with
metal
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Able to state Able to state
one property
of calcium
hydroxide
Suggested answers:
1. Calcium 1. Calcium hydroxide is slightly soluble in water II
2 . Calcium hydroxide is an alkali
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(ii) Able to explain the (ii) Able to explain the process that occur in the reaction
Suggested answer:
1. Acid reacts with alkali
2. Form water and salt.
(iii) Able to complete (iii) Able to complete the equation by giving the product of the reaction
Answer:
Sodium chloride
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Able to state one importance of using toothpaste.
Suggested answers
1. Prevents teeth decay.
2. Neutralises the acid that is formed (by the decomposition of food
residue ).
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Question 6
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(i) Suggested
answers :
1. Increases the
yield of crops.yield of crops.
2.Improves the
characteristic
crop.
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Suggest one way
(ii) Removes /Cuts all the anthers.
(iii) Able to give one reason for the answer in 6(a)(ii)
Prevents the plant from producing its own pollen grain
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(i) Able to make one (i) Able to make one
suggestion to
increase
cross-pollination
Suggested answers:
1. Use vibration method
2. Use external 2. Use external pollinated
(ii) Transfers the pollen grain from one plant to the stigma of another plant
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Able to explain how the • Able to explain how the situation helps to increase the yield of fruits
• Suggested answers:
• 1. Honey bee helps in the process of pollination
•
• 2 . Honey bees acts as the agent of pollination agent of pollination
• 3. More fruits develop form /after pollination
• [Accept any two reasonable answers]
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Part B
Question 7
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Able to state how the
students stand
Suggested answers
P : Stands on one leg
Q : Stands on twoQ : Stands on two
R : Stands on one leg
S : Stands on two
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Able to state one inference based on the
observation.observation.
Suggested answers
1. Q is more stable because he stands on two legs
//spreads his legs // his base area is wide
2. R is less stable because he stands on one leg //
his the base area is small
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Able to relate the relationship between the way the student
stands and the stabilitystands and the stability
Suggested answers:
1. The bigger the base area, the more stable (vice versa)
2. Base area affect the stability
3. The way the student stands affects the stability
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Question 8
Experiment
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Able to state Able to state one difference based on the observation
Suggested answer:answer:
• The grasshopper in J died but the grasshopper in K is still alive
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• Able to make one inference based on observation in 8(a)(i)
Suggested answers:
I. The grasshopper in J died because there is no air //oxygen
2. The grasshopper in K still alive because there is air //oxygen
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Able to state the relationship
between the size of container and the between the size of container and the
time taken time taken for the candle to
extinguish
Suggested answer:
The bigger the size of the container,
the longer the time taken time taken for the
candle to extinguish (vice versa)
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