skema sn pra pmr kel 2009
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8/7/2019 SKEMA SN PRA PMR KEL 2009
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PERCUBAANPENILAIAN MENENGAHRENDAH 2OO9
SKEMA PEMARKAHANSCIENCE(PAPtrR2)s512
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8/7/2019 SKEMA SN PRA PMR KEL 2009
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No. ahswer
R : Protectsthe flower during th_Lross-poil lnatlon
(i) P(ii)r/ I ) ^ ^ ^ - - - r
ffilti
Q: OvuleR: Sepal
MarkI a2
b Ic 1d I52 a IIb \rrsrr4u5trtraunprO(rucrnasa,)ollrerentbotlrngpoint.(i ) Darkercolour(ii) More viscous(iii) Less(abilityto) burns(iv) (Produce)moresoot
(Brtumenis usedfor) coveringroadsurface.(i ) boiling(ii) evaporation(i )(ii) u / v/ condensationi freezing/ iubrimation/ ' \ r(1,1 suDllmatlon(ii)_ _iodine / dry ice / naphthalene
foial
Thedischargeof an unfertiliAn ovum i -- -
( i ) Day 15(i i ) Dav30
Ic 2
d I63 a IIb IIc II64 a Iibc Id Ie 1I6
SKEMA PEMARKAII{NscrENCEPAPER2(sst2)
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8/7/2019 SKEMA SN PRA PMR KEL 2009
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J A A reactionbetweenan acidand alkali to form salt andwater 1b Acid + Alkali -) Salt+ Water Ic SoluSoluion K : Hydrochloricacid // Sulphuricacid // Nitric acidion L : SodiumhvdroxidellPotassiumhvdroxide// Ammoniumhydroxide
1Id (( )i) GreenAcidic solution IIe ((
((*
) A dilute alkali is usedto reducepaincausedby insectbitei) Alkali in toothpastehelpsto neutralisethe acid aroundour teethii ) Slakelime (Calciumhydroxide)is usedto neutraliseacidicsoilv) Milk of magnesia(antacid)is usedto neutralisedthe excessacid in thestomachChooseanvfwo suitableanswers
2
Total 86 a ,ffift l WHearrbc,,:ksllit{_'r rltrlt I Ill La1 1 |CupboardR
Flr rHAlll tr"=r'=*i|1 |l l i l ffiHear1'botrksll F=r+t'] I____ll['ll-_LryCupboardS
ffirfr| ''illil i--n|t In ,16+.411|---li: *ry
CupboardT* the 'X' must be located at the top, middle andJpwel part of cupboard S, R and Tresoectivelv.
aJ
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(Cupboard)T(It hasthe) lowestcentreof gravityT --+ s --+R(i)(ii) (It) spreadsout its legsThe stabilityis increasedby increasingthebasearea(whenthe giraffespreadsout its legs) Totalw-XYZhasnetworkvein leaf ltap root / fruit / tubers/ flowerhasparallelvein leaf lfibrous root / fruits / suckerhasnetworkvein leaf ltap root / fruits / hasrunnerhasnarallelvein leaf lfibrous / flower
Suggestedanswers:e.s : Answer1 Hasparallelvein leafHasnetworkvein leafCommoncharacteristics
BananaplantWaterhvacinthPotatoeplantStrawberrvplantName of plantse.q : Answer2 HasfibrousrootHastap root
PotatoeplantStrawberryplantCommoncharacteristics BananaplantWaterhvacinthNameof plants
e.g : Answer3 Without fruitWith fruitCommoncharacteristicsWaterhyacinthPotatoeplantStrawberryplantBanananlant
Nameof plants
e.g: Answer4 Without flowerWith flowerCommoncharacteristics StrawberryplantBananaplantWaterhyacinthPotatoeplantNameof plants
* Acceptanysuitableanswers.TotaI
Manipulatedvariable: Thevalueof resistanceRespondingvariable Thevalueof current/AmmeterreadingFixedvariable Numberof dry cells/ Voltage
Resistance(Q) 1 2 5 r0Ammeterreading(A) 0.9 0 .7 0 .5 0.3
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8/7/2019 SKEMA SN PRA PMR KEL 2009
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c
a'1()k-{r )
(C))
oa
At least3 pointsA smoothgraph
plottedcorrectlyl ine- lm
lm
2
d (i) The currentdependson the value of resistance(ii) IndirectlyproportionalllThebrightnessof the bulb decreases// the bulb becomesdimmerwhen theresistanceincreasesI
e 0.37+ 0.01A If Currentis the ammeterreading/ readingof the ammeter ITotal T2
BNDOF MARKING SCHEME
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