SECTION A BAHAGIAN A [40 Marks] [40 markah] Answer all questions Jawab semua soalan 1. Diagram 1 shows the particles on a substance. Rajah 1 menunjukkan zarah-zarah dalam suatu bahan. P: R: Q: Diagram 1 (a) On diagram 1, label P, Q and R with the following words: Pada rajah 1, labelkan P, Q dan R dengan perkataan berikut: Element Mixture Compound Unsur Campuran Sebatian 1 (a) [ 3 marks ] (b) Draw lines to match the particle in the substance with correct examples. Lukis garis untuk memadankan zarah-zarah bahan dengan contoh yang betul. P Q R Iron sulphide Besi sulfida Iron and sulphur Besi dan sulfur Iron Besi 1 (b) [ 3 mark Total
2. Diagram 2.1 shows the support system in land animals. Rajah 2.1 menunjukkan system sokongan dalam haiwan daratan J: K: Diagram 2.1 Rajah 2.1 (a) In the box provided on diagram 2.1, name the type skeleton of the animals Di dalam kotak yang disediakan pada rajah 2.1, namakan jenis rangka bagi haiwan tersebut [2 marks] 2 (a) (b) Give two functions of the skeleton in animal J. Namakan dua fungsi rangka ini pada haiwan J. (i).. 2 (b) (ii) [2 marks]
( c) Diagram 2.2 shows animals living in sea water. Rajah2.2 menunjukkan haiwan yang hidup dalam air laut Diagram 2.2 Rajah 2.2 (i) Based on the diagram 2.2, name the type of skeleton of the animal Berdasarkan rajah 2.2, namakan jenis rangka pada haiwan ini (ii) Explain why this animal able to swim in sea water. Terangkan mengapa haiwan ini boleh berenang dalam air laut. 2 (c)(i) 2 (c)(ii) Total
3. Diagram 3.1 shows an activity to obtain water from river water. Rajah 3.1 menunjukkan suatu aktiviti mendapatkan air daripada air sungai. Water outlet Air keluar Liebig condenser Kondenser Liebig River water Air sungai Water inlet Air masuk Heated Dipanaskan Diagram 3.1 Rajah 3.1 P (a) (i) Based on diagram 3.1, give the changes in the state of matter in Liebig condenser Berdasarkan rajah 3.1, berikan perubahan keadaan jirim dalam Kondenser Liebig... (ii) State the process involved. Nyatakan proses yang terlibat.... (b) Explain why distillate is not suitable as drinking water. Terangkan mengapa hasil turasan tidak sesuai sebagai air minuman.... 3(a(i) 3(a)(ii) 3(b)(ii) 3(b)...
(c) Diagram 3.2 shows an activity to purify water Rajah 3.2 menunjukkan suatu aktiviti untuk membersihkan air. Muddy water Air berlumpur Q Diagram 3.2 Rajah 3.2 (i) State the method used in this activity. Namakan kaedah yang digunakan dalam aktiviti ini.... [1 mark ] 3(c)(i) (ii) Name the liquid collected in beaker Q. Namakan cecair yang terkumpul dalam bikar Q. Q :... [ mark] (d) Based on activity in diagram 3.1 and 3.2, state the difference between the liquid. P and Q. Berdasarkan aktiviti dalam rajah 3.1 dan 3.2, nyatakan perbezaan antara cecair P dan Q.... 3(c)(ii) 3(d) Total
4. Diagram 4.1 shows an activity to study the solubility of salt. Rajah 4.1 menunjukkan aktiviti untuk megkaji keterlarutan garam. Water at 50 0 C Air pada 50 0 C Coarse salt Garam kasar Beaker J Bikar J Beaker K Bikar K Water at 100 0 C Air pada 100 0 C Fine salt Garam halus Beaker L Bikar L Beaker M Bikar M Diagram 4.1 Rajah 4.1 (a) Based on diagram 4, state the salt in which beaker that : Berdasarkan rajah 4, nyatakangaram dalam bikar manakah yang: (i) dissolve first larut paling awal:. 4(a) (ii) dissolve last: larut paling akhir:. [ 2 marks] (b) Explain your answer in 4(a)(i) Terangkan jawapan anda di 4(a)(i).. 4(b)
(c) Diagram 4.2 shows the solubility graph of different solutes in water. Rajah 4.2 menunjukkan graf keterlarutan bahan larut dalam air. Solubility of solute (in 100 ml water) Keterlarutan bahan larut (dlm 100ml air) 90 80 70 60 Lead nitrate Plumbum nitrat Potassium nitrate Kalium nitrat Potassium chloride Kalium klorida 50 40 30 Sodium chloride Natrium klorida 20 10 5 10 15 20 25 30 35 40 45 Temperature 0 C Suhu 0 C Based on diagram 4.2, Berdasarkan rajah 4.2, Diagram 4.2 Rajah 4.2 4(c)(i) (i) which salt has same rate of solubility at 25 0 C? garam manakah yang mempunyai keterlarutan yang sama pada suhu 25 0 C?... (ii) which salt has very little increase in the rate of solubility when temperature increases. garam manakah mempunyai sangat sedikit kenaikan kadar keterlarutan apabila (iii) state the rate of solubility of the salt when temperature increases. nyatakan kadar keterlarutan garam apabila suhu bertambah... 4(c)(ii) 4(c)(iii) Total
5. Diagram 5.1 shows the cross section of human ear. Rajah 5.1 menunjukkan keratin rentas teling manusia. Based on diagram 5.1, Berdasarkan rajah 5.1, Diagram 5.1 Rajah 5.1 (a)(i) write the sequence of the hearing mechanism tuliskan urutan mekanisme pendengan (ii) part that help body maintain its balance. bahagian yang membantu badan mengekalkan keseimbangan.. (iii) part that thicken and become less elastic when a person gets older bahagian yang menebal dan semakin kurang kenyal apabila meningkat tua.. iv) suggest one device that can be used to overcome hearing limitation. cadangkan satu alat yang boleh digunakan untuk mengatasi had pendengaran. 5(a)(i) 5(a)(ii) 5(a)(iii) 5(a)(iv)...
b) Diagram 5.2 shows an activity to study the properties of sound. Rajah 5.2 menunjukkan satu aktiviti untuk mengkaji sifat bunyi. Hard and smooth wood plank Kepingan katu keras dan licin Polysterene sheet Kepingan polisterin Boy A Budak lelaki A Boy B Budak lelaki B Diagram 5.2 Rajah 5.2 (i) State the boy who can hear the ticking of clock better Nyatakan budak lelaki yang mendengan detikan jam lebih baik. 5(b)(i) (ii) Give your reason. Beri alasan anda.. (iii) State one property of sound based on the activity. Nyatakan satu sifat bunyi berdasarkan aktiviti ini.. (c) Explain why curtains and rugs are put in auditorium. Terangkan mengapa langsir dan permaidani dipasangkan dalam auditorium. 5(b)(ii) 5(b)(iii) 5(c).. TOTAL Total
6. Diagram 6.1 shows an activity to investigate the properties of silica and silicate. Rajah 6.1 menunjukkan suatu aktiviti untuk menyiasat sifat-sifat silika dan silikat. Sand Pasir Test tube holder Pemegang tabung For Examiner s Use Lime water Air kapur Clay Tanah liat Test tube holder Pemegang tabung Lime water Air kapur Diagram 6.1 Rajah 6.1 Based on the activity, Berdasarkan aktiviti, 6(a)(i) a) State one property of: Nyatakan satu sifat (i) Sand Pasir: (ii) Clay Tanah liat: 6 (a)(ii)
(iii) Give one property of silicon compound in relation to their abundance in the earth crust. Berikan satu sifat sebatian silicon yang berkaitan dengan kehadiran yang banyaknya dalam kerak bumi. 6(a)(iii) [1 mark] (iv) State one of the element in a silica. Nyatakan satu daripada unsur dalam silica. 6 (a)(iv). (b) Diagram 6.2 show and activity to investigate the property of a carbonate. Rajah 6.2 menunjukkan satu aktiviti untuk menyiasat sifat suatu karbonat. Dilute hydrochloric acid Asid hidroklorik cair Calcium carbonate Kalsium karbonat Lime water Air kapur Diagram 6.2 Rajah 6.2 (i) State what happen to lime water when acid react with calcium carbonate. Nyatakan apa berlaku kepada air kapur apabila asid bertindakbalas dengan kalsium karbonat... 6 (b)(i)
(ii) State P and Q to complete the equation of the reaction. Nyatakan P dan Q untuk melengkapkan persamaan tindakbalas ini P + Hydrochloric acid Asid hidroklorik Salt garam + Q + Water Air P : 6(b)(ii) Q :.. [ 2 marks ] (c) Calcium carbonate does not dissolve in water. Explain why it slightly dissolves in rain water. Kalsium karbonat tidak larut dalam air. Terangkan mengapa ia larut dalam air hujan.. 6(c) TOTAL
SECTION B [ 20 MARKS] Answer all questions Jawab semua soalan 7. Diagram 7.1 shows four substances P,, R and S Rajah 7.1 menunjukkan empat bahan P, Q, R dan S. Solid P Solid Q Liquid R Pepejal P Pepejal Q Cecair R Liquid S Cecair S Diagram 7.1 Rajah 7.1 Table 7.2 shows the density of each substances Jadual 7.2 menunjukkan ketumpatan setiap bahan. Substance Bahan Density Ketumpatan P 0.25 g/ cm 3 Q 2.70 g/ cm 3 R 0.80 g/ cm 3 S 13.6 g/ cm 3 Table 7.2 Jadual 7.2 a) State the observation whether the substance float or sink when the substances is placed in water of density 1.0 g/ cm 3 Nyatakan pemerhatian sama ada bahan terapung atau tenggelam apabila dimasukkan ke dalam air yang ketumpatannya 1.0 g/ cm 3. P :.. Q:.. R:. S: [ 4 marks ]
b) Classify the substances in 7(a) based on their relative density to water Kelaskan bahan dalam 7(a) mengikut ketumpatan bandingan dengan air. Relative density Ketumpatan bandingan Denser than water Lebih tumpat daripada air Less dense than water Kurang tumpat daripada air Substance Bahan [ 4 marks ] Total
8. Diagram 8.1 shows two different liquid are boiled. Rajah 8.1 menunjukkan dua cecair berlaian yang dididihkan. Water Air Diagram 8.1 Rajah 8.1 Soup Sup (a) It is observed that water boils at 100 0 C while soup boils at 120 0 C. Diperhatikan air mendidih pada suhu 100 0 C manakala sup mendidih pada 120 0 C. (i) Based on the observation, state the difference in the hotness of the both liquid. Berdasarkan pemerhatian, nyatakan perbezaan kestabilan bangku M dan bangku N... (ii) State one inference based on the observation. Nyatakan satu inferens berdasarkan pemerhatian. (iii) State one hypothesis based on the observation Nyatakan satu hipotesis berdasarkan pemerhatian 8(a)(i) 8(a)(ii) 8(a)(iii)
(b) Diagram 8.2 shows an experiment set up by a group of students to study the effect impurities on the boiling of water. Rajah 8.2 menunjukkan satu eksperimen yang dipasang oleh sekumpulan pelajar untuk mengkaji kesan bendasing ke atas takat didih air. 100 Thermometer Termometer Retort stand Kaki retort 90 Distilled water Air suling Beaker Bikar Thermometer reading Bacaan termometer 110 100 Salt water Air garam Thermometer Termometer Retort stand Kaki retort Beaker Bikar Thermometer reading Bacaan termometer Diagram 8.2 Rajah 8.2 (i) Based on the observation when both liquid boil, record the thermometer reading in table 8.3 Berdasarkan pemerhatian apabila kedua-duanya mendidih, rekodkan bacaan termometer di dalam jadual 8.3 8(b)(i) Type of water Jenis air Distilled water Air suling Salt water Air garam Thermometer reading, 0 C Bacaan thermometer, 0 C Table 8.3 [ 2 marks]
(ii) State the variables involved in the experiment Nyatakan pembolehubah yang terlibat di dalam eksperimen Manipulated variables Pembolehubah dimanipulasi Responding variables Pembolehubah bergerakbalas [ 2 marks] 8(b)(ii) (iii) Based on table 8.3, draw a bar chart of the temperature when water boils Berdasarkan jadual 8.3, lukiskan carta bar suhu apabila air mendidih. Temperature, 0 C Suhu, 0 C 120 100 80 60 40 20 8(b)(iii) Distilled water Air suling Water +salt Air garam Type of water Jenis air [ 2 marks ] (c) Based on table 8.3, predict the temperature if salt water is replace with sea water. Berdasarkan jadual 8.3, ramalkan suhu jika air garam digantikan dengan air laut.. 8(c)
(d) Based on the experiment, state the relationship between the presents of impurities in water and its boiling point. Berdasarkan eksperimen, nyatakan hubungan antara kehadiran bendasing dalam air dengan takat didihnya. 8(d) (e) Based on experiment, define impurities operationally. Berdasarkan eksperimen, definisikan bendasing, secara operasi. 8(e). END OF QUESTION PAPER TOTAL Total