Score make easy

PMR

(SCIENCE PAPER 2)

55/255/2

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.

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)

Question 1

Test basic knowledge.

• Able to

use the

words in

the box to

state the state the

situation

of the pair

of balls.√√√√√√√√ √√√√√√√√ √√√√√√√√

[3 marks]

• Able to (√) in

the boxes

below the √√√√√√√√ below the

items that

produce

electrostatic.

√√√√√√√√

√√√√√√√√

• Able to (√) in the correct box the meaning of

electrostatic

Question 2

• 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

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

(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

Question 3

Analysing

• 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]

(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

(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 .

Question 4

Able to state the

type of energy

produced by all the

activities.

Answer :Answer :

Heat energy

(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

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]

Question 5

Comparing

Inferring

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

(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

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

(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

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 ).

Question 6

(i) Suggested

answers :

1. Increases the

yield of crops.yield of crops.

2.Improves the

characteristic

crop.

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

(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

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]

Part B

Question 7

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

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

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

Question 8

Experiment

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

• 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

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)