pmr trial 2012 sns (kedah) q&a

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    Q A R S T Rajah Jadual Konstruk

    F1

    1.2 Steps in scienctific investigation 1 B 1 K

    2.1 Cells 2 A 1 U

    2.2 Unicellular and multicellular organisms 3 C 1 U

    3.3 Density 4 A 1 A

    4.2 Elements, compounds and mixtures 5 D 1 K5.1 The composition of air 6 B 1 K

    5.3 Oxygen is needed for respiration 7 A 1 U

    6.1 The various forms and sources of energy 8 B 1 K

    7.2 Heat flow and its effect 9 A 1 K

    7.5 Absorbing and giving out heat 10 B 1 U

    5 3 2 10

    F2

    8.1 Sensory organs and their functions 11 B 1 K

    8.9 Stimuli and responses in plants 12 B 1 K

    9.2 The importance of a balanced diet 13 C 1 A

    9.4 Absorption of digested food 14 A 1 U

    10.1 Organisms and their classification 15 B 1 U11.2 Interaction between living organisms 16 C 1 K

    11.4 Photosynthesis 17 D 1 U

    12.2 Composition of water 18 D 1 K

    12.4 Solution and solubility 19 A 1 U

    12.7 Water supply system 20 D 1 K

    13.1 Air pressure 21 B 1 K

    14.4 Application of work 22 D 1 A

    15.1 Support systems in animals 23 A 1 K

    16.1 Stabil ity 24 A 1 K

    17.1 Levers 25 D 1 A

    7 5 3 15

    F318.1 Human breathing mechanism 26 C 1 K

    19.2 Human blood 27 C 1 U

    19.3 Transport system in plants 28 A 1 K

    20.2 Human urinary system 29 D 1 K

    21.4 The menstrual cycle 30 C 1 A

    21.5 Fertilisation and pregnancy 31 C 1 K

    21.9 Pollination 32 D 1 U

    22.1 The pattern of human growth 33 C 1 U

    23.2 Reactions between metals and non-metals 34 B 1 A

    24.3 Measuring electricity 35 C 1 K

    24.9 Electromagnetism 36 D 1 U

    25.4 Electrical supply and wiring system at home 37 A 1 K25.6 Functions of fuse and earth wire 38 D 1 A

    26.1 The Sun 39 B 1 K

    27.1 Developments in the field of astronomy and space 40 C 1 K

    exploration 8 4 3 15

    20 12 8 40

    BILANGAN JAWAPAN A 10 K

    BILANGAN JAWAPAN B 10 U

    BILANGAN JAWAPAN C 10 A

    BILANGAN JAWAPAN D 10JUMLAH 40

    JUMLAH

    Knowledge/Pengetahuan

    Understanding/Kefahaman

    Application/Aplikasi

    JSI & SKEMA JAWAPAN SCIENCE PMR KERTAS 1 PROGRAM PENINGKATAN AKADEMIK KEDAH 2012

    Item Aras Kesukaran Stimuli

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    1

    55/2SCIENCEPMROgos 2012

    PEPERIKSAAN PERCUBAAN

    PENILAIAN MENENGAH RENDAH 2012

    SCIENCE

    KERTAS 2

    PERATURAN PERMARKAHAN

    UNTUK KEGUNAAN PEMERIKSA SAHAJA

    ___________________________________________________________________________Peraturan pemarkahan ini mengandungi 17 halaman bercetak

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    2

    No Mark Scheme Mark

    1(a) Able to name the class of animal P, Q and R correctly

    Answer

    P: Reptilia Q: Amphibian R: Mammals

    * 3 correct = 2 marks* 2 correct = 1 mark

    2

    1(b) Able to match with its characteristic correctly.

    Answer

    AnimalsHaiwan

    CharacteristicsCiri-cirinya

    PGiving birth to live young.Melahirkan anak

    QLaying eggs without shell.Bertelur tidak bercengkerang.

    RLaying eggs with shell.

    Bertelur bercengkerang

    1

    1

    1 3

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    3

    No Mark Scheme Mark

    1(c) Able to choose animal which has the same class as animal R.

    Answer

    1

    1

    TOTAL A1 6

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    4

    No Mark Scheme Mark

    2 (a)(i) Able to name the structure of L.

    Sample Answer

    1. Valve2. Bicuspid valve

    Notes: If the name of the valve mention, only accept only bicuspid valve.

    1 1

    2(a)(ii) Able to state the function of structure L.

    Sample Answer

    1. To ensure that the flow of blood is in one direction.2. To ensure blood flows in one direction from the left atrium to the left

    ventricle.

    Notes: If sample answer is chosen, only accept the direction from the leftatrium to the left ventricle.

    1 1

    2(b)(i) Able to name the part labelled T.

    Answer1. Phloem 1 1

    2(b)(ii) Able to state the function of the part labelled U.

    Sample Answer

    1. Transport water and dissolved mineral salts.2. Transport water and dissolved mineral salts from the root to the other

    part of the plant.

    3. Helps to support the plants. 1 1

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    5

    No Mark Scheme Mark

    2(c)(i) Able to choose the person entitle to receive Sofeas blood.

    Answer

    PatientPesakit

    Blood GroupKumpulan Darah

    Emelda

    O

    Emeriz

    AB

    Erizmi

    B

    1 1

    2(c)(ii) Able to state the type of blood which is called as universal donor

    Answer

    1. Group O 1 1TOTAL A2 6

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    6

    No Mark Scheme Mark

    3(a) Able to label the position of pectorial girdle correctly.

    Answer

    1 1

    3(b)(i) Able to state the support system of the whale

    Answer

    Water buoyancy 1 1

    3(b)(ii) Able to give reason correctly

    Answer

    The whale has small endoskeleton that does not much support to its bodyweight.

    1 1

    3(c) Able to state one common characteristic correctly.

    Answer

    Both animals have endoskeleton 1 1

    3(d) Able to explain why water vertebrates can grow much larger.

    Answer

    The skeleton of the animal does not have to support the whole weight of theanimal because the upthrust of water does.

    2 2

    TOTAL A3 6

    Pectorial girdle

    Lengkungan pelvis

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    7

    No Mark Scheme Mark

    4(a) Able to name the form of energy correctly.

    Answer

    1. Chemical energy 1 1

    4(b)(i) Able to state the energy changes correctly

    Sample Answer

    1. Changes from kinetic energy to electrical energy2. Kinetic energy electrical energy 1 1

    4(b)(ii) Able to state the advantage of the source of energy.

    Sample Answer

    1. Low cost or cheap2. Renewable3. Can be used over and over again4. Cannot be used up5. Never run out6.

    Can be replenish7. Always available

    8. Unlimited source9. No pollution10.Clean 1 1

    4(c)(i) Able to choose which coconut has a higher potential energy.

    Sample Answer

    1. Coconut R2. R 1 1

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    8

    No Mark Scheme Mark

    4(c)(ii) Able to explain how is the height of a coconut tree influence the potentialenergy correctly.

    Sample Answer

    1. The higher the coconut tree, the higher the potential energy.2. The lower the coconut tree, the lower the potential energy.3. As the height of the coconut tree increases, the potential energy

    increases.4. As the height of the coconut tree decreases, the potential energy

    deceases.5. The height of the coconut tree is direct proportional with the potential

    energy.1 1

    4(c)(iii) Able to explain why is coconut R produced louder sound when it falls?

    Sample Answer

    1. The coconut R tree is higher; it has a higher potential energy. Thesewill make it has a higher energy. Because of these, it will make thesound become louder.

    2. The coconut tree is higher; it has a higher potential energy and whenit changes to kinetic energy, the kinetic energy also higher comparedto S. Because of these, it will make the sound become louder.

    3. Because it has a higher potential energy.4. Because it has a higher kinetic energy.

    1 1

    TOTAL A4 6

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    9

    No Mark Scheme Mark

    5(a)(i) Able to complete the sequence correctly.

    Sample Answer

    1 1

    5(a)(ii) Able to give one characteristic correctly.

    Sample Answer

    1. Thin wall (one cell thick)2. Lined by a thin layer of moisture3. Surrounded by large network of blood capillaries 1 1

    5(b)(i) Able to state the condition correctly.

    Answer

    All correct - 2 marks2-3 correct - 1 mark1 correct - 0 mark

    Structure of modelStruktur model

    X Y

    Volume in the glass jarIsipadu di dalam balang kaca increase decreasePressure in the glass jarTakanan di dalam balang

    kaca

    decrease increase1

    1

    2

    5(c)(i) Able to state one problem correctly.

    Sample Answer

    1. Can have emphysema2. Heart diseases3. Bronchitis4. Lung cancer 1 1

    PQRLungs

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    10

    No Mark Scheme Mark

    5(c)(ii) Able to give a reason correctly.

    Sample Answer

    In the cigarette contain nicotine that makes a smoker addicted to it. 1 1

    5(d)(i) Able to state the effect correctly.

    Sample Answer

    1. Can cause breathing difficulties2. Damage lung tissues

    1 1

    5(d)(ii) Able to suggest the way to reduce pollutant correctly.

    Sample Answer

    1. Use unleaded fuel2. Industries should install filters on smokestacks3. Car-pool practising 1 1

    TOTAL A5 8

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    11

    No Mark Scheme Mark

    6(a)(i) Able to state the uses of lime water.

    Sample Answer

    to check for the presence of carbon dioxide1 1

    6(a)(ii) Able to state the result of the observation.

    Sample Answer

    limewater turns cloudy // chalky.

    1 1

    6(a)(iii) Able to complete the words equation from the reaction.

    Answer

    All correct - 2 marks1 correct - 0 mark

    1

    12

    6(a)(iv) Able to state the element correctly.

    Sample Answer

    calcium, carbon and oxygen 1 1

    Calcium carbonateheated calcium

    oxide+

    carbon

    dioxide

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    12

    No Mark Scheme Mark

    6(b)(i) Able to name the product formed.

    Sample Answer

    calcium hydroxide // slaked lime1 1

    6(b)(ii) Able to state the uses of the product.

    Sample Answer

    Slaked lime is added to the soil to reduce the acidity of the soil.

    1 1

    6(b)(iii) Able to give a reason.

    Answer

    Slaked lime is alkali. 1 1

    6(c) Able to state changes of the colour of red litmus paper.

    Sample Answer

    ERed litmus paper turns blue.

    1 1

    TOTAL A6 8

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    13

    No Mark Scheme Mark

    7(a)(i) Able to state the observation.

    Sample Answer

    P : Float on water//Timbul (terapung)di permukaan air

    Q: Sink in water//Tenggelam dalam air

    * P berada di atas air

    Q berada di bawah air

    1

    1

    2

    7(a)(ii) Able to classify the object.

    Sample Answer

    Less dense than water : Object P

    Denser than water : Object Q, R

    1

    12

    7(a)(iii) Able to give an inference.

    Answer

    Inference :1. P floats on waterbecause it less dense than water. Or

    2. Q sink in waterbecause it denser than water. 1 1

    7(a)( iv) Able to state the relationship.Sample Answer

    If the density of object is higher than density of water, it will be sink inwater.or

    If the density of object is lower than density of water, it will be float onwater.

    1 1

    SALAH

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    14

    No Mark Scheme Mark

    7(b) Able to state the prediction.

    Sample Answer

    Cork : Float / Timbul

    Wood : Sink / Tenggelam

    1

    1 2

    TOTAL B7 8

    No Mark Scheme Mark

    8(a)(i) Able to state the difference by observing the diagram.

    Sample Answer

    Teapot M is black, Teapot N is white. // Teapot M is darker than Teapot N. 1 1

    8(a)(ii) Able to state the result from observing the situation in the diagram.

    Sample Answer

    Coffee in Teapot M. // In Teapot M. // Teapot M. // M 1 1

    8(a)(iii) Able to state a reason.

    Sample Answer

    The dark surface radiates heat better than the white surface. 1 1

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    15

    No Mark Scheme Mark

    8(b)(i) Able to read the reading of the stop watch and record the reading.

    Sample Answer

    Conical flasks

    Kelalang kon

    e per at r e of ater C)

    Suhu air C)

    0 minute

    0 minit

    10 minutes

    10 minit

    20 minutes

    20 minit

    30 minutes

    30 minit

    P 85 75 65 55

    Q 85 79 73 67 1 1

    No Mark Scheme Mark

    8(c) Able to state the hypothesis correctly.

    Sample Answer

    The darker the colour of surface, the lower the temperature of water. /// if thecolour of the surface is darker, the temperature of water decreases / lower. //The temperature of water lower / decreases when the colour of surface isdarker. 1 1

    8(d) Able to state the variable involved in the experiment.

    Sample Answer

    Manipulated variable

    Pembolehubah dimanipulasi

    Colour of the surface / type of the surface

    Responding variable

    Pembolehubah bergerak balas

    The temperature of water1

    1 2

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    16

    No Mark Scheme Mark

    8(e)(i) Able to draw a graph using the data in the table.

    Sample Answer

    1

    1

    2

    e perat re of ater )

    Time ( min )

    60

    70

    80

    90

    0

    10

    20

    30

    40

    50

    10 20 30

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    No Mark Scheme Mark

    8(e)(ii) Able to state the relationship between the type of surface and the temperatureof water.

    Sample Answer

    1. The temperature of water is lower when the colour of surface is dulland dark but the temperature is higher when the colour of surface iswhite and shiny.

    2. The darker the surface, the lower the temperature of water.1 1

    8(e)(iii) Able to make a prediction

    Sample Answer

    Less than 45oC 1 1

    8(f) Able to define operationally the heat release

    Sample answer

    1. Heat release is shown by the decreasing of the temperature of waterin conical flask.2. Heat release is shown when the temperature of water in conical flaskis lower.

    3. Heat release is the temperature of water 1 1TOTAL B8 12

    JUMLAH 60

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