Cambridge IGCSE Science - Combined 0653 — 2005 May/June Paper 1 · Variant 1

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education COMBINED SCIENCE 0653/01 Paper 1 Multiple Choice May/June 2005 45 minutes Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB is recommended) READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, Centre number and candidate number on the answer sheet in the spaces provided unless this has been done for you. There are forty questions on this paper. Answer all questions. For each question there are four possible answers A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate answer sheet. Read the instructions on the answer sheet very carefully. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet. A copy of the Periodic Table is printed on page 20. This document consists of 18 printed pages and 2 blank pages. IB05 06_0653_01/RP  UCLES 2005 [Turn over www.XtremePapers.com

2 © UCLES 2005 0653/01/M/J/05 1 Water enters a plant cell. In what order does water pass through the cell structures before reaching the vacuole? A cell surface membrane → cell wall → cytoplasm B cell wall → cell surface membrane → cytoplasm C cell wall → cytoplasm → cell surface membrane D cytoplasm → cell wall → cell surface membrane 2 When a plant cell is placed in a dilute solution of red dye, the contents of the cell do not become red. What prevents the dye molecules from entering the cell? A cell membrane B chloroplasts C cytoplasm D vacuole 3 Which statement about enzymes is correct? A They are made of carbohydrate. B They are not denatured by high temperatures. C They speed up chemical reactions. D They work only inside living cells.

3 © UCLES 2005 0653/01/M/J/05 [Turn over 4 The diagram shows a section through a leaf. 1 2 3 Which part brings water to the leaf and through which part does the water leave the leaf? brings water water leaves A 1 2 B 1 3 C 2 1 D 3 1 5 Which two nutrients are needed for healthy bone and tooth development? A calcium and iron B iron and vitamin C C vitamin C and vitamin D D vitamin D and calcium

4 © UCLES 2005 0653/01/M/J/05 6 The diagram shows apparatus at the start of a breathing experiment. limewater tube X tube Y mouth piece A person breathes in and out through the mouth piece for a short time. Which shows the results? limewater in tube X limewater in tube Y A goes cloudy goes cloudy B goes cloudy stays clear C stays clear goes cloudy D stays clear stays clear 7 Which structure supplies oxygenated blood to the heart muscle? A coronary artery B pulmonary artery C right atrium D vena cava 8 Which organ makes insulin? A kidney B liver C pancreas D stomach

5 © UCLES 2005 0653/01/M/J/05 [Turn over 9 The diagrams show a sperm and an egg. W Y Z X Which structures fuse during fertilisation? A W and Y B W and Z C X and Y D X and Z 10 The diagram shows a section through a flower. P Q R Where are male gametes and female gametes made? male gametes female gametes A P R B Q P C R P D R Q

6 © UCLES 2005 0653/01/M/J/05 11 How does the IUD (intra-uterine device) prevent pregnancy? A kills the sperms B prevents egg production C prevents fertilisation D prevents implantation 12 In a photosynthesis experiment, a plant is left in bright sunlight for several hours. A leaf is then removed from the plant and tested for starch, using iodine solution. The diagram shows the leaf from the plant that was used in the experiment. white area green area Which diagram shows the result of the experiment? A B C D iodine solution turns blue/black iodine solution stays brown key 13 What is the cause of variation? genes environment A   B   C   D  

7 © UCLES 2005 0653/01/M/J/05 [Turn over 14 An examiner with poor handwriting writes a question about element Y. The question says that Y • burns, • conducts electricity. A typist – who has studied IGCSE Combined Science – is given the question to type. Which of these two properties tell the typist to type 7Y and not 7Y? burns conducts electricity A   B   C   D   15 Which method of separation can be used to obtain pure water from aqueous potassium chloride? A chromatography B crystallisation C distillation D filtration 16 Which gases have molecules that contain one or more double covalent bonds? carbon dioxide ethene hydrogen chloride A    B    C    D    17 Which three elements are all transition elements? A chlorine, bromine and iodine B helium, neon and argon C lithium, sodium and potassium D iron, cobalt and nickel

8 © UCLES 2005 0653/01/M/J/05 18 A solid X is placed in the circuit shown. The lamp lights. X What is solid X? A an alloy B a compound C an electrolyte D a salt 19 Copper(II) oxide is mixed with solid S. On heating the mixture, a reaction occurs and the limewater turns cloudy. heat copper(II) oxide and solid S limewater What is solid S? A carbon B iron C sodium D zinc

9 © UCLES 2005 0653/01/M/J/05 [Turn over 20 An excess of each of metals X, Y and Z is separately added to water. The pH of each of the resulting liquids is measured. 14 7 X Y Z pH Which metals are X, Y and Z? X Y Z A copper calcium sodium B copper sodium calcium C sodium calcium copper D sodium copper calcium 21 How are salts formed from acids? A Hydrogen is replaced by a metal. B Hydrogen is replaced by a non-metal. C Oxygen is replaced by a metal. D Oxygen is replaced by a non-metal. 22 The equations for two reactions are shown. X PbCO3 → PbO + CO2 Y CH4 + 2O2 → CO2 + 2H2O Which types of reaction are X and Y? X Y A combustion thermal decomposition B combustion neutralisation C thermal decomposition combustion D thermal decomposition neutralisation

10 © UCLES 2005 0653/01/M/J/05 23 An electrolysis circuit is set up using carbon electrodes as shown. + – + – molten lead(II) bromide aqueous copper(II) chloride W X Y Z At which two electrodes would a Group VII element be formed? A W and Y B W and Z C X and Y D X and Z 24 Which reagents, in aqueous solution, all give a white precipitate when added drop by drop to aqueous zinc chloride? A ammonia, barium chloride and hydrochloric acid B ammonia, barium chloride and silver nitrate C ammonia, silver nitrate and sodium hydroxide D hydrochloric acid, silver nitrate and sodium hydroxide 25 A pan of hot oil on a cooker catches fire. After switching off the cooker, the fire is put out by covering the pan with a cloth. Why does the cloth put out the fire? A The cloth absorbs the heat of the flames. B The cloth cuts off the air supply. C The cloth is not able to burn. D The cloth soaks up all the oil.

11 © UCLES 2005 0653/01/M/J/05 [Turn over 26 How can a plastic be described? A a mixture of ions B a mixture of long chain molecules C a mixture of atoms of metals D a mixture of small hydrocarbon molecules 27 A hydrocarbon fuel is burnt completely. hydrocarbon fuel oxygen X Y + + What are the products of this reaction? X Y A CO H2 B CO H2O C CO2 H2 D CO2 H2O 28 A decorator wishes to calculate the area of a bathroom tile so that he can estimate the amount of adhesive which he needs to buy. What must he use? A a measuring cylinder only B a ruler only C a measuring cylinder and a clock only D a measuring cylinder and a ruler only

12 © UCLES 2005 0653/01/M/J/05 29 A moving car drips oil on to a road at a steady rate. Which diagram shows that the speed of the car is increasing? A B C D direction of movement of the car 30 Which statement is correct? A The mass of a bottle of water at the North Pole is different from its mass at the Equator. B The mass of a bottle of water is measured in newtons. C The weight of a bottle of water and its mass are the same thing. D The weight of a bottle of water is one of the forces acting on it.

13 © UCLES 2005 0653/01/M/J/05 [Turn over 31 Objects with different masses are hung on a 10 cm spring. The diagram shows how much the spring stretches. 100 g M 10 cm 20 cm 30 cm The extension of the spring is directly proportional to the mass hung on it. What is the mass of object M? A 110 g B 150 g C 200 g D 300 g 32 A power station uses nuclear fission to obtain energy. In this process, nuclear energy is first changed into A chemical energy. B electrical energy. C heat energy. D potential energy. 33 A ball is released from rest and rolls down a track from the position shown. What is the furthest position the ball could reach? A B C D ball starts here

14 © UCLES 2005 0653/01/M/J/05 34 An iron bar is held with one end in a fire. The other end soon becomes too hot to hold. fire hand iron bar How has the heat travelled along the iron bar? A by conduction B by convection C by expansion D by radiation 35 The diagram shows a block of ice placed in a warm room. At which point is the temperature the lowest? table clamp ice B C D A

15 © UCLES 2005 0653/01/M/J/05 [Turn over 36 The ray diagram shows how an image is formed by a converging lens. 24 cm 10 cm 8 cm What is the focal length of this lens? A 8 cm B 10 cm C 18 cm D 24 cm 37 In which circuit does the voltmeter read the potential difference across the lamp? C V D V A B V V

16 © UCLES 2005 0653/01/M/J/05 38 In the circuit below, X and Y are identical 6 V lamps. switch X Y 6 V What happens when the switch is closed? A X lights more brightly than Y. B Y lights more brightly than X. C X and Y light with equal brightness. D Neither X nor Y light. 39 A student makes the circuit shown. 5 A fuse The fuse has blown and stopped the current. What could have caused this? A The current rating of the fuse was too high. B The current was too large. C The lamp was loose. D The voltage was too small.

17 © UCLES 2005 0653/01/M/J/05 40 The activity of a radioactive source is measured at intervals during a period of 1200 s. The results are given in the table. time / s activity / counts per second 0 101 300 50 600 ? 900 13 1200 6 Which reading is most likely at 600 s? A 19 B 24 C 31 D 37

19 Every reasonable effort has been made to trace all copyright holders where the publishers (i.e. UCLES) are aware that third-party material has been reproduced. The publishers would be pleased to hear from anyone whose rights they have unwittingly infringed. 0653/01/M/J/05 BLANK PAGE

20 University of Cambridge International Examinations is part of the University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge. 0653/01/M/J/05 Group 140 Ce Cerium 58 141 Pr Praseodymium 59 144 Nd Neodymium 60 Pm Promethium 61 150 Sm Samarium 62 152 Eu Europium 63 157 Gd Gadolinium 64 159 Tb Terbium 65 162 Dy Dysprosium 66 165 Ho Holmium 67 167 Er Erbium 68 169 Tm Thulium 69 173 Yb Ytterbium 70 175 Lu Lutetium 71 232 Th Thorium 90 Pa Protactinium 91 238 U Uranium 92 Np Neptunium 93 Pu Plutonium 94 Am Americium 95 Cm Curium 96 Bk Berkelium 97 Cf Californium 98 Es Einsteinium 99 Fm Fermium 100 Md Mendelevium 101 No Nobelium 102 Lr Lawrencium 103 1 H Hydrogen 1 7 Li Lithium 3 23 Na Sodium 11 24 Mg Magnesium 12 40 Ca Calcium 20 45 Sc Scandium 21 48 Ti Titanium 22 51 V Vanadium 23 52 Cr Chromium 24 55 Mn Manganese 25 56 Fe Iron 26 59 Co Cobalt 27 59 Ni Nickel 28 64 Cu Copper 29 65 Zn Zinc 30 70 Ga Gallium 31 27 Al Aluminium 13 11 B Boron 5 12 C Carbon 6 14 N Nitrogen 7 16 O Oxygen 8 19 F Fluorine 9 28 Si Silicon 14 31 P Phosphorus 15 32 S Sulphur 16 35.5 Cl Chlorine 17 40 Ar Argon 18 20 Ne Neon 10 4 He Helium 2 73 Ge Germanium 32 75 As Arsenic 33 79 Se Selenium 34 80 Br Bromine 35 84 Kr Krypton 36 39 K Potassium 19 88 Sr Strontium 38 89 Y Yttrium 39 91 Zr Zirconium 40 93 Nb Niobium 41 96 Mo Molybdenum 42 Tc Technetium 43 101 Ru Ruthenium 44 103 Rh Rhodium 45 106 Pd Palladium 46 108 Ag Silver 47 112 Cd Cadmium 48 115 In Indium 49 119 Sn Tin 50 122 Sb Antimony 51 128 Te Tellurium 52 127 I Iodine 53 131 Xe Xenon 54 137 Ba Barium 56 139 La Lanthanum 57 * 178 Hf Hafnium 72 181 Ta Tantalum 73 184 W Tungsten 74 186 Re Rhenium 75 190 Os Osmium 76 192 Ir Iridium 77 195 Pt Platinum 78 197 Au Gold 79 201 Hg Mercury 80 204 Tl Thallium 81 207 Pb Lead 82 209 Bi Bismuth 83 Po Polonium 84 At Astatine 85 Rn Radon 86 Fr Francium 87 227 Ac Actinium 89 9 Be Beryllium 4 I II III IV V VI VII 0 85 Rb Rubidium 37 133 Cs Caesium 55 226 Ra Radium 88 The volume of one mole of any gas is 24 dm3 at room temperature and pressure (r.t.p.). a X b a = relative atomic mass X = atomic symbol b = proton (atomic) number Key *58-71 Lanthanoid series 90-103 Actinoid series DATA SHEET The Periodic Table of the Elements

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education MARK SCHEME for the June 2005 question paper 0653 COMBINED SCIENCE 0653/01 Paper 1 (Multiple Choice), maximum raw mark 40 Mark schemes must be read in conjunction with the question papers and the Report on the Examination. • CIE will not enter into discussion or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the June 2005 question papers for most IGCSE and GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses’. www.XtremePapers.com

Grade thresholds for Syllabus 0653 (Combined Science) in the June 2005 examination. minimum mark required for grade: maximum mark available A C E F Component 1 40 33 25 19 15 The threshold (minimum mark) for B is set halfway between those for Grades A and C. The threshold (minimum mark) for D is set halfway between those for Grades C and E. The threshold (minimum mark) for G is set as many marks below the F threshold as the E threshold is above it. Grade A* does not exist at the level of an individual component.

JUNE 2005 IGCSE MARK SCHEME MAXIMUM MARK: 40 SYLLABUS/COMPONENT: 0653/01 COMBINED SCIENCE Paper 1 (Multiple Choice)

Page 1 Mark Scheme Syllabus Paper IGCSE – JUNE 2005 0653 1 © University of Cambridge International Examinations 2005 Question Number Key Question Number Key 1 B 21 A 2 A 22 C 3 C 23 A 4 B 24 C 5 D 25 B 6 C 26 B 7 A 27 D 8 C 28 B 9 A 29 C 10 A 30 D 11 D 31 C 12 C 32 C 13 A 33 B 14 A 34 A 15 C 35 D 16 B 36 B 17 D 37 D 18 A 38 C 19 A 39 B 20 C 40 B