egeri sembilan spm trial 2011 science (w ans)

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PEPERIKSAAN PERCUBAAJ{ SPM 2011

' sAil{s x51x

SKEMA PEMARKAI{ANKERTAS 1


MARK SCHEME SCIEPERATARAN PEMARKAHA

NOMBfSR JAWAPAN1 {A,2 c

B

4R D

6 c7 B

Io A10 A11 c12 B'13 D

14 D

15 D

16 B

17

18 D

19 A2021 c22 D

23 B24 c25 D

NOMBOR JAWAPAN20 c27 A28 D29 D30 B31

32 t-33 B34 D35 A36 D.)', c.38 B39 B

40 c41 A

42 c4344 A45 D46 B47 D

4849 A50


PEPERIK AAN PERCUBAAI{ SPM 2OIT

SATNS 1511

SKEMA PEMARKAI{ANKERTAS 2


.l

N,{,ARKING SCHEMESCIENCE SPh TR{.A[, 28tr tr Fapen 2

Question Marking Criteria h4ark I[4arks

i (a)

(bx;)

(bxii)

.Able t@ stoie tke votrwue of oxyge gfis collecledAnswer: 14,Able to circle tke gtuph wleicls shows tke higher rate afpltatos!tutfuesisAnsu'er : Any mark on the graph with x = 25 cm

,4bte tet efuaw *notleer graple witfr x = 35 c*aAnswer : Graph X : 35sm is between Graph X : 25em and X : 50 ern

X=50cm

I

I

i

!

2


,2

I

I

5

t


,3

Ahle ta camplere D am 2.1Ayrswer :

Able to weaswre tke ittxage distance, DAnswer :6.2 cm

Able to state lhe hctual tiwreAnswer :

8.05

Able ta stste ofie chalacteristic af image formed.Answer :Laterally inverted

Able to mark ) the optica! iffistrumepEt !ka/ uses pkEneymirror

Answer :


,4

Question Mark scheme Submark

Totalmark

3 (a) ,4ble to draw the graphAnswer

Note: Point transfer (5 to 6 points correct) :2 marks(3 to 4points correct) : 1 mark

Smooth graph, smooth slope : 1 mark30) Able to state the relationship between the sile of bacterial colony

a.nd time.AnswerAs the time increases, the size ofbacteria colony also increases

3(c) Able to predict the size ofbacterial colanies produced onthe 6'oda1tAlsWer21 or 22

Total


,5


Totalmark

observetion:

The time taken for the empty tin to stop oscillate isfaster than 1l're tin filled with sand.he time taken for the tin filled with sand to stopscillate is longer than the empty tin.

e inferenceans\vers :

Because ernpiy tin has smaller inertiaBecause tin filled q/ith sand has larser inertia

stanl varicb\e:

Length of the ropeSize of tinFolce

anding variahle

Tin're taken for the tin to stop oscillateInertia

diagram wkich skows the cancept of inertia

1

I

1

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Total

2

J

I

5


.6Malk:;cheme

Able lo name the glandAnswer :P: Thyroid gland R:Pancreas

,4ble to state the hormoneAnswer :Insulin

Able to state the futtction of hormoneSample answets :

1. To control the development of f'emale secondarysexual charactetistics

2. To control the production of ovum3. Control the menstrual cycle

Able lo state the glandSample anryrcrs l

1.Q2. Adrenal gland

Able lo slate the tJ)pe of actionAnswer :Voluntary action


,7


Totalmark

6(a)

(b)(D

(bxii)

(c)

(d)

Able lo name parlicle I'Answer :Neutron

Able to name radiatian KSa4plq3nstryg$ ,I . Alpha ray2. Beta ray3. Gamma ray

Able to state the futtctian of radiation in diagram 6'2Sample answers :1 Sterilization of surgical tools2. Detect blockage in the blood vessel

AbIe lo state lhe fwnclion afradiation in diagram 6.2(b)Answer :1. Detect the age offossils

Able to stale tke ,nethad ta detect radiation KSample answers :I . Geiger-Muller counter2. G-M counter3. Photographic badge

Able to state the effect ovt human beings if exposed toradiation K

Sample answers :l. Vomiting2. Dianhea3. Mutation4. Skin cancer

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1

1

1

1

I

Total

.L

I

I

6


.S

Question Mark scheme Sub mark Totalmark

7(a)

(bXD

(ii)

(iiD

(c)

7(d)

Able to state what is lransferred from one organism lo lheolher in a food webAnswerEnergy

Able lo idenlify producerAnswerPaddy plant

,4ble ro idenlif), primary consumerSamplg_44qvglg1. Small bird2. Grasshopper3. Rat

Abtre lo idehlifJ) secondcry consumetS amplg_44r!'elq ,-1. Small bird2. Snake3. Eagle

Able to write afood chainSample answers

1. Paddy plant ---+ Small bird ---+ Eagle

2. Paddy plant--+ Small bird -*

Snake ---+ Eagle

3. Paddy plant -+ Grasshopper --+ Srnall bird

Eagle

4. Paddy plant-* Grasshopper--+ Small birdI

Eagle {- Sn&e5. Paddy plant-+ Rat ---+ Snake ---> Eagle

6. PadCy plant --> Rat --+ Eagle

AbIe to state what wculd happen to the population ofsnakesif all tlte eagle were killedAnswerPopulalion of snake increases

1

1

1

I

I

1

.'

I

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IQuestion h4ark scheme Sub mark Totalmark

8(a)

(b)

(c)

(d)

(e)

(r)

,4ble to mame the white precipitute

Vitamin A Vitamin C Vitamin E./ Total

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1

n

I

I

t

6


. i0


9(a) Able to draw lhe sltmbol af a diodeAnswer :

(bXD Able lo name component ZArDwgL:Transformer

(c)(ii) I Able to state the energ) changes in c(i1I Answer :I Electrical energy -------$ Sound energy

2

(d) Able to rircle the type ol waveAnswer :

Modulated waveGelombang \l Ligbtwave lSoundwavetermodulast / Gelonbang cahaya Celombang bunyi

Total


, li


r 0(a)

(b)

Able ta relate tke manipul*ted variable witk the respondingvtt bleSampjg_arutyeru

1.If ammonium chloride reacts with distilled water, energy isabsorbed// If ammonium chloride is added to distilled water, energy isabsorbed

2. If sodium hydroxide reacts 14'ith water, energy is released// If sodium hydroxide is added to distilled water, energy isreleased

3. Reaction between sodium hydroxide and distilled watercauses an increase of temp eralure /l rcaclion betweenammonium chlqride and distilled waier causes a decrease intemperature

(i) Able to state tke aim of experiment(ll) ,4ble to stete any lwo variables(iii) .4ble to list all apparatus and materials(iv1 Able to list al least four steps for method of

eriqTtent(v) Abtre ta co?tstrwct a table wlcich consists af rnanipwlated

veriable and responding variable

Sample_a4rwqq

Aim of experirnerat

1 . To study the type of reaction when ammonium chlorideor sodium hydroxide react with distilled rryater

2. To study whether energy is absorbed or released whenamtnonium chloride or sodium hydroxide react withdistilled water

Manipulated variab!e

i. Ammonium chloride and sodium hydroxide2. Type ofsubstance added to distilled vrater

1

1

21

4,|

t

9


12

Responding variable

1. Energy absorbed or released2. Final reading of temperatureConstant variahle

1. Volume of distilled water2, Mass ofsubstances added to distilled water3. initial temperature ofdistilled water.Apparatus and materials

l. Ammonium cirloride2. Sodium hydroxide3. Distilled water4. Spatula5. Thermometel6. Beaker / coniainer / test tubeProcedure

1. Pour distilled water into two beakers/test tubes/anycontainer.Label the beakers/ test tube P and Q.Record the initial temperature of distilled water in bothbeakers/ test tr,rbes/any container.Add ammonium chloride in one beaker/test tube/ beakerP and sodium hydroxide in the other beaker/ test tube/beaker QStir the solutionRecord the final temperature ofthe solution.

Tabulation of data

Beaker/Test tube

Substancesadded

Final ternperature ( C)

P Sodiumhvdroxide

o Ammoniumchloride

2.3.

5.6.


13

Question Mark seheme Submark

Totalmark

11(a)

(b)

,Abtre lo sdate fowr differences fsetweew cantinaaas vafiation anddis c ontin uo us v adat io Pe

Able to state lwo cornwralt characlerislicsSempJe-auw9r91. Shows obvious characteristics

2. Influenced by genetie factor3. Can be inherited

,4ble to state initiel canceptAnswers

The variation which shows obvious characteristics andinfluenced by genetic factor is discontinuous variation.

Able to stule otker example antl non exampleOther example :Eaqplc-aalwqstr. Sex 2. blood groupIJon example :

le answers1. Weight 2. Haight 3. Skin colour

,/Able lo st&te ectuel conceptAnswersDiscontinuous variation is a variation which shows obviouscharacteristios and influenced by genetic factor.

Continuous variation Discontinuous variation1 Do not show obvious

characteristics1 Shows obvious

oharacteristics2 Influenced by genetic and

environmental factor2 Influenced by genetic

factor only3 Cannot tre inherited 3 Can be inherited4 The characteristics change

sradually4 The characteristics

Chanse distinctiveiy

4

2

1

1

I

Total

4

a

I

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1

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10


11

Question Mark schenre Submark

Totalmark

12(a)

(b)

Able la state twa methods witk explanationSample answers1. Using mcdern technology

- introduce varieties of new machine to farmers to save timeand budget// introduce chemical fertiiizers and pesticides toincrease the quality and quantity offood production

2. IJsing quality breed- produce the better characteristics

3. Education and guidance for farmers- Guidance on the use of machines,/pesticides/ fertilizers- Education on breeding quality seeds

4. Research and development- Discover better breeds- Improve ways to control Fests- To produce belter fertilizcrs/ more effective pesticides

5. Efficient land minagement- Crop rotation- Use of compost/ fertilizers- Cover crop- Integrated farming

AbIe lo slatc aim of cltoiceAnswerTo choose the best palm fruir which produce rnore oil.

AbIe lo compnre belween the claaracteristics af the fruil.Sample answers

4

3

1

4

6

DURA TFNERAThicktebal

KemelIsirung

Thicktebal

Thicktebal

ShellTempurung

ThinnerLebih nipis

Thinnipis

Mesocarpsabut

Thicktebal

Bighesor

Sizesaiz

Bigbesar

LowRendah

Oil contentKandungan minyak

HightinEpi

Anv three


t5

Able to choose the besl frwit according to its abilily to prodwcennore oil.

Answer :Tenera

Able to stale one characteristic of lhe fruil that h{rve beenchosen and explain how it can incredse the prodaction of, oil.

Answer :Thicker mesocarp will produce more oil.

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1

Total 10


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egeri sembilan spm trial 2011 science (w ans)

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