1. 1
SEKOLAH MENENGAH AL-HIDAYAH, IPOH
PENILAIAN PERTENGAHAN TAHUN
2011
TINGKATAN 5
DO NOT OPEN THIS TEST PAPER UNTIL YOU ARE TOLD TO DO SO
1 This question paperconsistsof three sections: Section A,
Section B and Section C
2 Answer all questionsin Section A and Section B.
Write your answers for Section A and Section B clearly
in the space provided on the question paper.
3 For Section C, answer Question 10 and choose another
Question 11 orQuestion 12.Write your answer for
Section C on the lined pages provided at the end of
this paper. Answershould be clear and logical.
4 The marks allocated for each sub-part of a question
are shown in brackets.
5 The time suggested to complete Section A is 60 minutes,
Section B is 50 minutesand Section C is 40 minutes.
6 You are allowed to answerthe question in English
or Bahasa Melayu.
SCIENCE
Paper 2
Two Hours and Thirty Minutes
For Examiner’s Use
Section Question Marks
A
1
2
3
4
B
5
6
7
8
9
C
10
11
12
Total

2. 2
Section A / Bahagian A
[20 marks]
Answer all questions (Jawab semua soalan)
(The time allocated for this section is 60 minutes /
(Masa yang dicadangkan untuk bahagian ini ialah 60 minit)
1 Diagram 1 shows the information on the blood groups collected from 30 students in a class.
(Rajah 1 menunjukkan maklumat tentang kumpulan darah yang dikumpul daripada 30 orang
pelajar di dalamsatu kelas)
(a) Complete Table 1 based on the information in Diagram 1.
(Lengkapkan Jadual 1 berdasarkan maklumat dalamRajah 1)
Type of blood group
(Jenis kumpulan darah)
A B AB O
Number of students
(Bilangan pelajar)
[2 marks]
(b) Draw a bar chart using the data in Table 1.
(Lukis carta barmenggunakan data dalamJadual 1)
A A AB A B O B B B A
AB
O A B A A AB O A O
A B B O B B AB A B A
DIAGRAM 1
TABLE 1

3. 3
[2 marks]
(c) Based on the bar chart in (b), state the type of variation for the blood group.
(Berdasarkan carta bardi (b), nyatakan jenis variasi bagi kumpulan darah)
..........................................................................................................................................................
[1 mark]
Number of students
(Bilangan pelajar)
Blood group
(Kumpulan darah)
6
0
8
4
2
10
12
0
2
0
2

4. 4
2 Diagram 2 shows an experiment to study the reactivity of metals when react with oxygen.
(Rajah 2 menunjukkan satu eksperimen untuk mengkaji kereaktifan logambila bertindak balas
dengan oksigen)
Three types of metals X, Y and Z are used and the results are shown in the Table 2.
(Tiga jenis logamiaitu X, Y dan Z telah digunakan dan keputusan pemerhatian ditunjukkan
dalamJadual 2. )
Metal
(Logam)
Observation (Pemerhatian)
(Condition of burning/keadaan keterbakaran)
X
Burns with bright light
(Terbakar dengan nyalaan terang)
Y
Glows dimly
(Membara malap)
Z
Burns moderately
(Terbakar sederhana)
TABLE 2 ( Jadual 2 )
(a) Write down one inference that can be made from observation in Table 2
(Tuliskan satu inferensyang boleh dibuat berdasarkan pemerhatian pada Jadual 2)
…………………………………………………………………………………………..............
…………………………………………………………………………………………..............
‘; [1 mark]
(b) State the following variables in this experiment.
(Nyatakan pembolehubah berikut dalameksperimen ini)
(i) Manipulated (Dimanipulasi)
…………………………………………………………………………………………..........
Heat (Panaskan)Heat (Panaskan)
Glass wool
(Wul kaca)
Metal filling
(Serbuk logam)Potassiummanganate (VII)
(Kaliummangganat (VII))
DIAGRAM 2

5. 5
(ii) Constant (dimalarkan)
…………………………………………………………………………………………..........
[2 marks]
(c) Based on the results in Table 2, arrange the reactivity of the metals from the most reactive to
the least reactive.
(Berdasarkan keputusan dalamJadual 2,susun kereaktifan logamdaripada paling reaktif
kepada kurang reaktif).
…………………………………………………………………………………………..............
[1 mark]
(d) If the metals used in this experiment are magnesium, zinc and iron, predict what is metal X?
(Jika logam-logamyang digunakan di dalameksperimen ini adalah magnesium, zink dan
besi, ramalkan apakah logam X?)
…………………………………………………………………………………………..............
[1 mark]
3 Diagram 3 shows an experiment to study the effect of impurities on the freezing point of distilled
water.
(Rajah 1 menunjukkan eksperimen untuk mengkaji kesan bendasing ke atas takat beku air suling)
(a) (i) Based on the above experiment , what is your observation of the thermometer
reading ?
(Berdasarkan eksperimen di atas, apakah pemerhatian anda pada bacaan
termometer?)
..................................................................................................................................................
[1 mark]
DIAGRAM 3.1
(RAJAH 3.1)
DIAGRAM 3.2
(RAJAH 3.2)
Thermometer
(Termometer)
Distilled water
(Air suling)
+ common salt
(garam biasa)
Ice
(Air batu)
Distilled water
(Air suling)

6. 6
(ii) What is the thermometer reading in Diagram 3.2 ?
(Apakah bacaan termometer pada Rajah 3.2?)
.....................................................................................0
C
[1 mark]
(b) State the variables in this experiment.
(Nyatakan pemboleh ubah dalameksperimen ini)
(i) Manipulated variable
(Pemboleh ubah yang dimanipulasikan)
..................................................................................................................................................
[1 mark]
(ii) Responding variable
(Pemboleh ubah yang bergerakbalas)
..................................................................................................................................................
[1 mark]
(c) State one inference for this experiment.
(Nyatakan satu inferens dalameksperimen ini)
...........................................................................................................................................................
[1 mark]
4 Table 3 shows the results of an experiment studying the effect of temperature on bacterial growth.
( Jadual 3 menunjukkan keputusan eksperimen mengkaji kesan suhu ke ataspertumbuhan
bakteria)
Petri dishes
(Piring petri)
Temperature (o
C)
(Suhu (o
C)
Number of bacterial
colonies
(Bilangan coloni bakteria)
1 10 2
2 20 5
3 30 9
4 40 10
5 50
........................
6 60 0
(a) Based on Table 3, draw a graph to show the relationship between the number of bacterial
colonies and temperature .
(Berdasarkan pada Jadual 3, lukisgraf yang menunjukkan hubungan antara bilangan koloni
bakteria terhadap suhu)
TABLE 3
(JADUAL 3)

7. 7
[2 marks]
(b) Based on the graph, state the number of bacterial colonies at 500
C in Table 3
(Berdasarkan graf,nyatakan bilangan koloni bakteria pada suhu 500
C dalamJadual 3)
[1 mark]
(c) What is the hypothesis of this experiment?.
(Apakah hipotesis bagi eksperimen ini?)
...............................................................................................................................................................
[1 mark]
(d) Write down one inference that can be made from the observation in Table 3.
(Tuliskan satu inferensyang boleh dibuat berdasarkan pemerhatian pada Jadual 3)
…………………………………………………………………………………………........................
………………………………………………………………………………………….......................
[1 mark]
Number of bacterial colonies
(Bilangan koloni bakteria)
6
0
8
4
10
12
00
2
10 20 4030 50 60
Temperature (o
C)
(Suhu o
C)

8. 8
Section B/ Bahagian B
[30 marks]
Answer all questions in this section.
The time suggested to answer this section is 50 minutes.
5. Diagram 5.1 and 5.2 show two types of neurones.
( Rajah 5.1 dan 5.2 menunjukkan dua jenis neuron.)
(a) (i) Name the type of neurone in Diagram 5.1
( Namakan jenis neuron dalamRajah 5.1 )
…………………………………………………………………………………………..............
[1 mark]
(ii) State the function of the neurone.
( Nyatakan fungsi neuron tersebut )
…………………………………………………………………………………………..............
[1 mark]
(b) State one difference between neurone in Diagram 5.1 and 5.2
(Nyatakan satu perbezaan antara neuron dalamRajah 5.1 dan 5.2)
…………………………………………………………………………………………..............
[1 mark]
(c) The diagram shows the sequence of nerves impulses travel along the reflex arc.
(Rajah menunjukkan urutan perjalanan impuls saraf dalamsuatu tindakan refleks.)
Receptor  P  spinal cord  Q  effector
( reseptor  P  saraf tunjang  Q  efektor )
Between neurone in Diagram 5.1 or 5.2, which neurone represent Q?
( Antara neuron dalamRajah 5.2 atau 5.2, yang manakah mewakili Q? )
…………………………………………………………………………………………..............
[1 mark]
DIAGRAM 5.1
(RAJAH 5.1)
DIAGRAM 5.2
(RAJAH 5.2)

9. 9
(d) What is the effect if neurone in Diagram 5.2 is not functioning?
(Apakah kesan jika neuron dalamRajah 5.2 tidak berfungsi?)
…………………………………………………………………………………………..............
[1 mark]
(e) Name part of the neurone that speeds up the transmission of impulses.
(Namakan bahagian pada neuron yang mempercepatkan perjalanan impuls.)
…………………………………………………………………………………………..............
[1 mark]
6 Diagram 6 shows the schematic diagram for the inheritance of hair types.
(Rajah 6 menunjukkan rajah skema bagi pewarisan jenis rambut .)
(a) Name the type of variation shown in Diagram 6.
(Namakan jenis variasi yang ditunjukkan dalamRajah 6)
…………………………………………………………………………………………..............
[1 mark]
(b) State another example of the same type of variation mentioned in (a).
(Nyatakan satu contoh lain bagi jenisvariasi seperti yang dinyatakan di (a).
…………………………………………………………………………………………..............
[1mark]
Straight hair
(Rambut lurus)
DIAGRAM 6
(RAJAH 6)
Father
(Bapa)
Mother
(Ibu)
Curly hair
(Rambut kerinting)
Children
(Anak)
HH hh

10. 10
(c) What factor influences the above variation?.
(Apakah faktoryang mempengaruhi variasi di atas?)
.....................................................................................................................................................
[1 mark ]
(d) Write down each child’s genotype in the boxes provided in Diagram 6.
(Tuliskan genotip bagi setiap anak dalamkotak yang disediakan dalamRajah 6)
[2 marks]
(e) Based on Diagram 6, which type of hair is dominant?
(Berdasarkan Rajah 6,jenis rambut yang manakah dominan?)
…………………………………………………………………………………………..............
[1 mark]
7 Diagram 7 shows a simple cell.
(Rajah 7 menunjukkan sel ringkas)
(a) (i) Name the negative electrode in Diagram 7
(Namakan terminal negatif pada Rajah 7)
…………………………………………………………………………………………..............
[1 mark]
(ii) State the reason for your answer
(Nyatakan alasan bagi jawapan anda)
…………………………………………………………………………………………..............
[1 mark]
(b) Name the electrolyte used
(Namakan elektrolit yang digunakan)
…………………………………………………………………………………………..............
[1 mark]
Zinc plate
(Plat zink)
Copper plate
(Plat kuprum)
Dilute hydrochloric acid
(Asid hidroklorik cair)
DIAGRAM 7
(RAJAH 7)

11. 11
(c) Mark the electron flow using an arrow on Diagram 7
(Tandakan arah pergerakan elektron dengan menggunakan anak panah pada Rajah 7)
[1 mark]
(d) After 30 minutes, what can be observed at zinc plate?
(Selepas 30 minit, apakah yang dapat diperhatikan pada plat zink?)
…………………………………………………………………………………………..............
[1 mark]
(e) State the change of energy in a simple cell.
(Nyatakan perubahan tenaga dalamsel ringkas)
…………………………………………………………………………………………..............
[1 mark]
8 Diagram 8 shows the label of a processed food which does not comply with the Food Regulation
1985.
(Rajah 8 menunjukan label pemprosesan makanan yang tidak memenuhi Akta Makanan 1985)
(a) Give one piece of informations that are not in the label as required by the Food Regulation
1985.
(Berikan satu maklumat yang tiada pada label seperti yang dikehendaki oleh Akta Makanan
1985)
…………………………………………………………………………………………..............
[1 mark]
Ingredients (Ramuan) : Manufactured by (Dikeluarkan oleh):
Prawn, flour, Sodium ADIHA FOOD INDUSTRIES
Chloride, Monosodium glutamate, KG MURNI INDUSTRIES AREA,
Sucrose, Boric Acis HULU TERENGGANU
HALAL
DIAGRAM 8
(RAJAH 8)

12. 12
(b) (i) Name one chemicalshown on the label that is prohibited for excessive consumption.
(Namakan satu bahan kimia pada label berkenaan yang dilarang digunakan secara
berlebihan)
…………………………………………………………………………………………..............
[1 mark]
(ii) Give one effect of the chemical stated in (b)(i) on health.
(Berikan satu kesan bahan kimia yang dinyatakan di (b)(i) kepada kesihatan)
…………………………………………………………………………………………..............
[2 marks]
(c) State the method of preservation that is used in this food processing.
(Nyatakan kaedah penyimpanan yang digunakan dalampemprosesan makanan ini)
…………………………………………………………………………………………..............
[1 mark]
(d) As a consumer what is the importance of reading the label on processed food?
(Sebagai seorang pengguna, apakah kepentingan membaca sesuatu label
pemprosesan makanan?)
…………………………………………………………………………………………..............
[1 mark]
9 Diagram 9 shows a cross section of human brain.
(Rajah 9 menunjukkan keratan rentas otak manusia )
DIAGRAM 9
A
B

13. 13
(a) Based on Diagram 9, name the structures labelled A and B.
(Berdasarkan kepada Rajah 9, namakan struktur berlabel A dan B)
A.…………………………………………………………………………………………..........
B…………………………………………………………………………………………...........
[2 marks]
(b) State one function of structure A .
( Nyatakan satu fungsi struktur A. )
…………………………………………………………………………………………..............
[1 mark]
(c) State two effects of drug abuse on the brain.
( Nyatakan dua kesan penyalahgunaan dadah terhadap otak)
1.…………………………………………………………………………………………...........
2…………………………………………………………………………………………............
[2 marks]
(d) What will happen if structure B is injured?
(Apakah kesan jika bahagian B tercedera?)
…………………………………………………………………………………………..............
[1 mark]

14. 14
Section C
[20 marks]
Answer Question 10 and either Question 11 or Question 12.
The time suggested to answer this section is 40 minutes
Jawab Soalan 10 dan mana-mana satu daripada Soalan 11 atau Soalan 12.
Masa yang dicadangkan untuk menjawab bahagian ini ialah 40 minit.
10 Study the following statement;
( Kaji pernyataan berikut;)
Your are given ;
( Anda diberi ; )
 Knop culture solution
(larutan kultur Knop)
 Culture solution without nitrogen
(Larutan kultur tanpa nitrogen)
 Cotton wool
(Wul kapas)
 Maize seedlings
(Anak benih jagung)
 Black paper
(Kertas hitam)
(a) Suggest a hypothesis to investigate the above statement. [ 1 mark ]
(Nyatakan satu hipotesis untuk menyiasat pernyataan di atas)
(b) Describe an experiment to test your hypothesis based on the following criteria:
( Huraikan satu eksperimen untuk menguji hipotesisanda berdasarkan kepada
perkara-perkara berikut;)
(i) Aim of the experiment. [ 1 mark ]
( Tujuan eksperimen )
(ii) Identification of variables [ 2 marks ]
( Mengenalpasti semua pembolehubah)
(iii ) List of apparatus and materials [ 1 mark ]
( Senarai radasdan bahan )
( iv) Procedure [ 4 marks ]
(Kaedah / prosedur)
(v) Tabulation of data [ 1 mark ]
( Penjadualan data)
A macronutrient is an element needed for the growth of healthy plant
( Makronutrien ialah unsur yang diperlukan untuk pertumbuhan sihat bagi pokok )

15. 15
11 (a) (i) Draw and label the arrangement of particles in copper and bronze.
(Lukiskan dan label susunan zarah-zarah dalamkuprum dan gangsa)
(ii) Explain why bronze is harder than copper?
(Terangkan mengapa gangsa lebih keras berbanding logamkuprum?)
[4 marks]
(b) Diagram 11 shows examples of alloys
(Rajah 11 menunjukkan contoh-contoh aloi.)
DIAGRAM 11
Study the above examples. Explain how you would develop a concept of alloy. Your
explanation of concept should include the following:
(Kaji contoh-contoh di atas.Terangkan bagaimana anda dapat membina konsep aloi.
Penerangan anda tentang konsep seharusnya mengandungi perkara – perkara berikut ;)
 Identify two common characteristics
(Mengenalpasti dua ciri – ciri sepunya)
 Develop initial concept.
(Membina konsep awal)
 Give other examples and non-examples in relation to the concept
(Berikan contoh lain dan bukan contoh berhubung dengan konsep tersebut)
 Explain the actual concept
(Terangkan konsep sebenarnya.)
[6 marks]
Alloys
(Aloi)
Pewter
(Piuter)
Bronze
(Gangsa)
Brass
(Loyang)

16. 16
12 (a) State two sources of water pollution and two effects on the environment
(Nyatakan dua punca pencemaran air dan dua kesan terhadap persekitaran)
[4 marks]
(b) The Environmental Department had received a complaint from Kampung Indah’s residents
regarding to variety species of fishes found floating dead in the river. The result of the
investigation made on the sample taken from the river proves that the river was contaminated
with effluents from the nearby palm oil factory.
Explain three methods that could be done by the factory management in order to eliminate
the effluents produced. Your explaination should base on the following aspect:
(Jabatan AlamSekitar telah menerima aduan daripada penduduk Kampung Indah tentang
pelbagai spesies ikan telah ditemui mati terapung di dalamsungai. Setelah sample airsungai
tersebut diambil untuk dikaji, bukti menunjukkan sungai tersebut telah dicemari oleh sisa-
sisa daripada kilang minyak kelapa sawit berhampiran sungai tersebut.
Terangkan tiga kaedah yang boleh dilakukan oleh pengurusan kilang tersebut dalam
menghapuskan sisa-sisa yang terhasil. Penerangan anda mestilah mengandungi aspek-aspek
berikut:)
Identify the problem.
(Mengenalpasti masalah)
Explain three alternatives to conserve the river
(Terang tiga alternatif bagi memulihara sungai tersebut)
List three alternatives according to their priority
(Senarai tiga alternatif mengikut keutamaan)
Choose the best alternative and state the reason for your choice
(Pilih alternatif terbaik dan nyatakan sebab pilihan anda)
[6 marks]
KERTAS SOALAN TAMAT