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1 PRA PMR DUA 2011 MARKING SCHEME SKEMA PERMARKAHAN SUBJECT CODE SUBJECT PAPER

QUESTION

(a)

(b)

SCIENCE TWO

ANSWER IN ENGLISH VERSION / JAWAPAN DALAM VERSI BAHASA MELAYU

SOALAN

1

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MARK MARKAH

Students should be able to label the parts of the eyes correctly X: Optic nerve / Saraf optik Y: Iris / Iris Z: Cornea / Kornea

1 1 1

Students should be able to match the following situation correctly

When we enter a dark room Apabila kita masuk ke bilik yang gelap

1

When we are looking at a near object Apabila kita lihat pada object yang dekat

1

When image of object cannot be detected Apabila imej objek tidak dapat dikesan

1

TOTAL

6

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QUESTION

(a)

MARK

ANSWER IN ENGLISH VERSION / JAWAPAN DALAM VERSI BAHASA MELAYU

SOALAN

2

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2

MARKAH

A student should be able to name the excretory organs correctly; (i)

Waste Product Bahan Buangan

Organs involved Organ-organ yang terlibat

Urea Urea

Skin/Kulit, Kidney/Ginjal

Mineral salts Garam galian

Skin/Kulit, Kidney/Ginjal

Carbon Dioxide Karbon Dioksida

Lungs/Paru-paru

3

Remarks: i) One correct answer for organs involved – 1 mark ii) Two correct answers for organ involved – 1 mark iii) One correct and one wrong answer for organ involved – 0 mark (ii)

Our body will be poisoned/Badan kita akan diracuni// Sick//Tidak sihat/sakit/ Nausea//Rasa mabuk// May lead to death/Mungkin mengakibatkan kematian (Any other relevant answers)

(b)

A student should be able to complete flow chart correctly.

1

Ureter/Ureter (c)

1

A student should be able to complete the table to show the waste product correctly Latex/Lateks/Susu getah Quinine/Kuinin

2 TOTAL

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QUESTION

(a)

MARK

ANSWER IN ENGLISH VERSION / JAWAPAN DALAM VERSI BAHASA MELAYU

SOALAN

3

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3

MARKAH

A student should be able to state the group of plant correctly. 1 1

P: Monocotyledon/Monokotiledon Q: Dicotyledon/Dikotiledon (b)

A student should be able to show the differences of characteristics for plant P and Q correctly; Characteristics Ciri-ciri

Plant P Tumbuhan P

Plant Q Tumbuhan Q

Leaves Daun

Have parallel veins/ Mempunyai urat daun yang selari

Have network veins/ Mempunyai urat daun yang jejala

Roots Akar

Fibrous root system/ Sistem akar serabut

Tap root system/ Sistem akar tunjang

4

Remarks It must show a clear difference of characteristics for the type of leaves and type of roots respectively. The word ‘vein’ must be written. Do not accept ‘parallel leaves or network leaves’

(c)

A student should be able to state the similarity correctly; Both plants produce flowers for reproduction/Kedua-dua tumbuhan berbunga untuk pembiakan

1

Reject: Both carry out Photosynthesis/both have roots/both have leaves/ TOTAL

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4

QUESTION SOALAN (a) 4 (i)

ANSWER IN ENGLISH VERSION / JAWAPAN DALAM VERSI BAHASA MELAYU

MARK MARKAH

A student should be able to state correctly; The lime water turns cloudy/chalky/milky/Air kapur bertukar menjadi keruh

1

Remarks Do not accept ‘not clear’, ‘blur’ or ‘white’ (ii)

Carbon dioxide/Karbon dioksida//CO2

(iii)

Marble/marmar// Limestone/batu kapur// Chalk/kapur// Teeth/gigi// Seashell/Cangkerang// Bone/tulang// Coral/batu karang//

1

1

Accept any relevant answer. (b)

A student should be able to state correctly;

(i)

Calcium carbonate/Kalsium karbonat

1

(ii)

Calcium carbonate/Kalsium karbonat + Hydrochloric acid/Asid hidroklorik → Calcium chloride/Kalsium karbonat + water/air + carbon dioxide/karbon dioksida

2

TOTAL

6

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5

QUESTION ANSWER IN ENGLISH VERSION / SOALAN JAWAPAN DALAM VERSI BAHASA MELAYU (a) A student should be able to answer correctly; 5

MARK MARKAH

(i)

Water //Air

1

(ii)

Anhydrous cobalt chloride paper will turn from blue to pink/Kertas klorida kontang akan berubah warna dari biru ke merah jambu

2

//Anhydrous copper sulphate powder will turn from white to blue/Serbuk kuprum sulfat akan berubah warna dari putih ke biru

(b)

A student should be able to answer correctly; P: Fuel/Bahan api Q: Oxygen/Oksigen R: Heat/Kepanasan

1 1

Remarks 1. The suggested answers are interchangeable. 2. All correct answers - 2 marks/ Two correct answers - 1 mark / One correct answer - 0 mark. (c)

A student should be able to answer correctly; Ban open burning/Melarang pembakaran terbuka// No smoking in the public/Tidak merokok di tempat awam// Fixing electrostatic precipitator on factory chimney/Memasang pemendakan elektrostatik pada cerobong kilang// Building tall chimney/Membina cerobong tinggi// Use unleaded petrol/Menggunakan petrol tanpa plumbum// Fixing a catalytic converter in car exhaust system/Memasang penggubah pemangkin dalam sistem eksos kereta// Reduce the use of CFC/Mengurangkan penggunaan CFC// Planting more green plant/Menanam lebih banyak pokok hijau

1

Any relevant answer TOTAL

6

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6

QUESTION SOALAN (a) 6 (i)

ANSWER IN ENGLISH VERSION / JAWAPAN DALAM VERSI BAHASA MELAYU

MARK MARKAH

A student should be able to define frictional force correctly Force that opposed the movement on an object/Daya yang menentang gerakan objek

1

A student should be able to state the magnitude of frictional force correctly 1

(ii)

4N

(b)

A student should be able to one advantage and one disadvantage of frictional force correctly;

Advantage: Enables us to hold glass/Membolehkan kita memegang glass// Enables a worker to climb up a pole/Membolehkan kenderaan bergerak di atas jalan raya// Enables us to walk without slipping/Membolehkan kita berjalan tanpa tergelincir Disadvantage: Produces heat that can damage certain parts of the machine/Menghasilkan haba yang boleh merosakkan bahagian mesin// Opposes or slows down movement/Menentang atau memperlahankan gerakan// Wears away materials/Menghauskan benda-benda Any relevant answer

1

1

(c)

A student should be able to answer correctly.

(i)

Weight of object/Berat objek// The nature of the surfaces in contact/Sifat permukaan yang bersentuhan

1

(ii)

The heavier the weight of an object, the bigger the frictional force that acts on it/Semakin berat objek, semakin besar daya geseran yang bertindak// The rougher the surfaces in contact, the greater the frictional force acting on them//Semakin kasar permukaan bersentuhan, semakin besar daya geseran yang bertindak

1

(d)

A student should be able to calculate the work done correctly Work done/Kerja = Force/Daya (N) x Distance/Jarak (m) = 4N x 2 m = 8J or 8 Nm

1 1 TOTAL

8

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7

QUESTION SOALAN 7

(a )

ANSWER IN ENGLISH VERSION / JAWAPAN DALAM VERSI BAHASA MELAYU A student should be able to state one characteristic of any three of the electrical circuit correctly:

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MARK MARKAH 1 for every characteristic

P: Series Circuit/Litar siri// Bulbs are connected from ends to ends/Mentol disambungkan satu hujung ke hujung yang lain// There is only one path of electric current//Ia mempunyai satu hala arus elektrik Q: Series Circuit/Litar siri// Bulbs are connected from ends to ends/Mentol disambungkan satu hujung ke hujung yang lain// There is only one path of electric current//Ia mempunyai satu hala arus elektrik// The cells are connected in parallel/Sel disambungkan secara selari

4

R: Parallel Circuit/Litar selari// Bulbs are arranged side by side/Mentol disusun sebelah menyebelah// There are more than one path of electric current//Ia mempunyai lebih daripada satu hala arus elektrik Cells are connected in parallel/Sel disambungkan secara selari S: Series Circuit/Litar siri// Bulbs are connected from ends to ends/Mentol disambungkan satu hujung ke hujung yang lain/There is only one path of electric current//Ia mempunyai satu hala arus elektrik (b)

A student should be able to state the relationship between the number of cells and the brightness of the bulbs in circuit P correctly 1

If the number of dry cell increases, the brightness of the bulbs also increases/Jika bilangan sel kering bertambah, kecerahan mentol juga bertambah (c)

A student should be able to answer the question correctly The other bulbs will not light up/Mentol-mentol yang lain tidak akan menyala

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QUESTION SOALAN 7

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8

(c)

ANSWER IN ENGLISH VERSION / JAWAPAN DALAM VERSI BAHASA MELAYU A student should be able to classify P, Q, R and S into two groups, based on common characteristics

MARK MARKAH

P, Q, R, S

Common characteristic Ciri sepunya

Letter of the circuit Huruf litar

Series circuit/Litar siri //Series circuit

Parallel circuit/Litar selari //Not series circuit

//Cells in series //Cells in series

//Cells in parallel //Cells not in series

P, Q, S

2 – in pairs

R 2

Accept any relevant answer/Terima sebarang jawapan yang berkaitan TOTAL

10

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9

QUESTION SOALAN

8

ANSWER IN ENGLISH VERSION / JAWAPAN DALAM VERSI BAHASA MELAYU

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MARK MARKAH

(a)

Student should be able differentiate the hotness of P and Q:

(i)

Soup in P is hotter than in Q/Sup dalam P lebih panas daripada Q// Soup in Q is less hot compared to soup in P/Sup dalam Q kurang panas berbanding dengan sup dalam P

1

(ii)

1

(b)

Soup in P is hotter than Q because P has a lid that prevents its heat loss through convection or vice-versa/Sup P lebih panas daripada Q kerana tudung P menghalang habanya hilang melalui perolakkan atau sebaliknya Student should be able to record the temperature correctly.

(i)

300C

1

(ii)

Different materials have different rates of heat conduction/Bahan yang berbeza mempunyai kadar konduksi haba yang berlainan// Copper is the best heat conductor followed by aluminium and iron/Kuprum ialah konduktor haba yang terbaik diikuti oleh aluminium dan besi//

1

(c)

Student should be able to answer the questions correctly

3 correct bars – 2 m

(i) 2 correct bars – 1 m 1 correct bar – 0 m

2

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QUESTION SOALAN

ANSWER IN ENGLISH VERSION / JAWAPAN DALAM VERSI BAHASA MELAYU

MARK MARKAH

(ii)

(iii)

(iv)

Manipulated variable

Types of rod/Jenis rod Types of material/jenis bahan

Responding variable

Temperature rise/Suhu naik Reading of thermometer

1 1

Any temperature that is between 250C to 300C / Sebarang suhu antara 250C dan 300C. The operational definition of heat conduction is the reading of the thermometer after 5 minutes. Definisi operasi bagi konduksi haba ialah bacaan pada thermometer selepas 5 minit.

TOTAL

1 1

10

END OF THE MARKING SCHEME

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