Cambridge IGCSE Sciences - Co-ordinated (Double) 0654 — 2014 Oct/Nov Paper 1 · Variant 2
0654/12/O/N/14 · 40 questions · 40 marks · ≈45 min
The question paper and its mark scheme, free to read here and free to download. This is Cambridge’s own paper, exactly as it was sat.
Question paper20 pages
Mark scheme2 pages
Answers below. Sit the paper first if you are practising.
Questions as text
Q1 · Which statement about cells is correct?
1 Which statement about cells is correct? A Cell membranes are found only in animal cells. B Cell membranes are found only in plant cells. C Cell walls are found only in animal cells. D Cell walls are found only in plant cells.
Mark scheme: D
Q2 · The diagram shows parts of a mesophyll cell
2 The diagram shows parts of a mesophyll cell. X What will be found in the part labelled X? A chloroplasts and nucleus B chloroplasts only C nucleus only D watery solution
Mark scheme: D
Q3 · What is the correct word equation for photosynthesis?
3 What is the correct word equation for photosynthesis? A carbon dioxide + sugar → oxygen + water B carbon dioxide + water → oxygen + sugar C oxygen + sugar → carbon dioxide + water D oxygen + water → carbon dioxide + sugar
Mark scheme: B
Q4 · The diagram shows part of the digestive system
4 The diagram shows part of the digestive system. Where is lipase produced? C D B A
Mark scheme: A
Q5 · Which statement about the pulmonary vein is correct?
5 Which statement about the pulmonary vein is correct? A It carries deoxygenated blood away from the heart. B It carries deoxygenated blood towards the heart. C It carries oxygenated blood away from the heart. D It carries oxygenated blood towards the heart.
Mark scheme: D
Q6 · The diagram represents the human blood system
6 The diagram represents the human blood system. Which chamber of the heart is the left ventricle? lungs heart chamber chamber A B chamber chamber D C head and body
Mark scheme: C
Q7 · Why does oxygen move from an alveolus to a blood capillary?
7 Why does oxygen move from an alveolus to a blood capillary? A It diffuses through because of a difference in concentration. B It is forced through the wall of the alveolus by air pressure. C It passes through because carbon dioxide is coming out. D It is pulled in by movement of blood in the capillary.
Mark scheme: A
Q8 · When a plant organ grows towards a stimulus, its response is described as ‘positive’
8 When a plant organ grows towards a stimulus, its response is described as ‘positive’. When it grows away from a stimulus, its response is described as ‘negative’. A plant root is placed horizontally in the dark. Which response would it show? A negative geotropism B negative phototropism C positive geotropism D positive phototropism
Mark scheme: C
Q9 · The diagram shows a sperm and an egg
9 The diagram shows a sperm and an egg. Which diagram shows fertilisation? A B C D
Mark scheme: A
Q10 · Cystic fibrosis is an inherited disease
10 Cystic fibrosis is an inherited disease. Only people who are homozygous recessive, ff, have this disease. Which cross could not give rise to a child suffering from cystic fibrosis? A ff × ff B Ff × ff C Ff × Ff D FF × ff
Mark scheme: D
Q11 · The diagram shows the male reproductive system of a human
11 The diagram shows the male reproductive system of a human. Which labelled part is found only in a male? D A C B
Mark scheme: B
Q12 · Which statements about X chromosomes are correct?
12 Which statements about X chromosomes are correct? present in present in body cells in body cells of carry genes males females A v Jv v B v x v Cc v x x D x v x
Mark scheme: A
Q13 · In an ecosystem, how do producers get most of their energy?
13 In an ecosystem, how do producers get most of their energy? A absorbing sunlight B eating other organisms C feeding on dead matter D using nutrients recycled by decay
Mark scheme: A
Q14 · Water can be separated from copper sulfate solution using the apparatus shown
14 Water can be separated from copper sulfate solution using the apparatus shown. copper sulfate solution water What is the name of the process? A chromatography B crystallisation C distillation D filtration
Mark scheme: C
Q15 · Which process can be used to produce sodium and chlorine from the compound sodium…
15 Which process can be used to produce sodium and chlorine from the compound sodium chloride? A cracking B distillation C electrolysis D filtration
Mark scheme: C
Q16 · Dye X is a mixture of different coloured substances
16 Dye X is a mixture of different coloured substances. Chromatography is used to compare X with three other mixtures, P, Q and R. The results are shown in the diagram. X P Q R Which other mixtures contain the dye X? A P only B R only C P and Q only D P, Q and R
Mark scheme: A
Q17 · Sodium chloride (salt) has an ionic structure
17 Sodium chloride (salt) has an ionic structure. Which compound could be sodium chloride? melting point boiling point electrical conductivity / °C / °C A –114 –85 conducts when dissolved in water B 98 880 conducts when solid C 801 1413 conducts when dissolved in water D 1610 2230 conducts when solid
Mark scheme: C
Q18 · Which statement describes the particles in a gas?
18 Which statement describes the particles in a gas? A As the particles move quicker the pressure of the gas decreases. B The movement of the particles is unaffected by temperature. C The particles are in random motion. D The particles are ordered.
Mark scheme: C
Q19 · Metal X is extracted from its oxide by heating with carbon
19 Metal X is extracted from its oxide by heating with carbon. The oxide of X reacts with hydrochloric acid. Which row shows the type of oxide and the type of reaction that occurs to the oxide when it is heated with carbon? type of oxide type of reaction A acidic oxidation B acidic reduction C basic oxidation D basic reduction
Mark scheme: D
Q20 · When a match is struck, heat and light energy are produced
20 When a match is struck, heat and light energy are produced. Which row describes the type of change and the type of reaction taking place? type of change type of reaction A chemical endothermic B chemical exothermic C physical endothermic D physical exothermic
Mark scheme: B
Q21 · Which statement about the trends in the Periodic Table is correct?
21 Which statement about the trends in the Periodic Table is correct? A Elements are arranged in order of nucleon number. B Elements on the left hand side form acidic oxides. C The melting point of the Group I elements increases down the group. D The proton number increases from left to right across the table.
Mark scheme: D
Q22 · The structures of compounds X and Y are shown
22 The structures of compounds X and Y are shown. H H H H H H H H C C C C H H H C C C C H H H H C C C C H H H H H H H compound X compound Y What are the correct formulae for these two compounds? compound X compound Y A C6H14 C6H10 B C6H14 C6H12 C C6H12 C6H10 D C6H12 C6H12
Mark scheme: C
Q23 · The diagram shows an experiment on a liquid hydrocarbon
23 The diagram shows an experiment on a liquid hydrocarbon. liquid hydrocarbon on mineral wool catalyst ethene heat water Which change takes place? A combustion B cracking C fractional distillation D polymerisation
Mark scheme: B
Q24 · The first row of the transition elements is shown
24 The first row of the transition elements is shown. Sc Ti V Cr Mn Fe Co Ni Cu Zn Which statement about transition metals is not correct? A They are often used as catalysts. B They form colourless compounds. C They have high densities. D They have high melting points.
Mark scheme: B
Q25 · Some uses of alloys are shown
25 Some uses of alloys are shown. solder coins tools Which statement about alloys is correct? A They are always stronger than the metals from which they are made. B They are made from metals because metals are poor electrical conductors. C They contain mixtures of compounds that contain metals. D They have different properties to the metals from which they are made.
Mark scheme: D
Q26 · The diagram shows waste organic material decaying
26 The diagram shows waste organic material decaying. tap methane gas decaying waste organic material What is formed when the gas, methane, is burned? A carbon dioxide and water B carbon dioxide only C carbon monoxide D water only
Mark scheme: A
Q27 · In which pair are both molecules unsaturated?
27 In which pair are both molecules unsaturated? H O H A H C C H C O H H O H H H H H H H B H C C C C C H H H H H H H C H C C H H C H H H H H H H H D H C C C H C H H H H
Mark scheme: B
Q28 · The diagram shows the speed / time graph for a car
28 The diagram shows the speed / time graph for a car. During which period is the car moving at constant speed? speed 0 0 time A B C D
Mark scheme: B
Q29 · Which energy resource does not provide energy originally derived from the Sun?
29 Which energy resource does not provide energy originally derived from the Sun? A coal B geothermal C tides D waves
Mark scheme: B
Q30 · Three forces act on a block
30 Three forces act on a block. 9 N 15 N 9 N What is the resultant force and what is its direction? A 3 N to the right B 6 N to the left C 15 N to the left D 18 N to the right
Mark scheme: A
Q31 · A flask contains a hot liquid
31 A flask contains a hot liquid. The flask has double walls with a vacuum between them. The vacuum reduces loss of thermal energy from the hot liquid. Which types of thermal energy transfer cannot occur through the vacuum? A conduction and convection only B conduction and radiation only C convection and radiation only D conduction, convection and radiation
Mark scheme: A
Q32 · A ray of light travels in glass towards a glass / air boundary
32 A ray of light travels in glass towards a glass / air boundary. The critical angle for glass is 42°. Which diagram shows what happens to the ray? A B air air glass glass 45° 45° light ray light ray C D air air glass glass 45° 45° light ray light ray
Mark scheme: C
Q33 · Which waves are longitudinal?
33 Which waves are longitudinal? A light waves from a lamp B sound waves from a piano C ultraviolet waves from the Sun D X-rays from a security scanner
Mark scheme: B
Q34 · Music is produced by the loudspeaker of a radio
34 Music is produced by the loudspeaker of a radio. Which property of the sound waves from the loudspeaker increases when the music is made louder? A amplitude B frequency C speed D wavelength
Mark scheme: A
Q35 · Which type of waves are used for intruder alarms?
35 Which type of waves are used for intruder alarms? A γ-rays B infra-red waves C ultraviolet waves D X-rays
Mark scheme: B
Q36 · Two rods, X and Y, look the same
36 Two rods, X and Y, look the same. P magnet rod X N S Q T rod Y U The N pole of a magnet is brought close, in turn, to P, Q, T and U. The results of these four actions are shown in the table. end tested result P attraction Q attraction T attraction U repulsion Which of the rods is a permanent magnet, with a pole at each end? A both of the rods B neither of the rods C rod X only D rod Y only
Mark scheme: D
Q37 · In the circuit all the lamps are lit
37 In the circuit all the lamps are lit. 1 2 3 Lamp 2 is removed. What happens to each of the other lamps? lamp 1 lamp 3 A goes out goes out B goes out stays lit C stays lit goes out D stays lit stays lit
Mark scheme: D
Q38 · A wire carries an electric current
38 A wire carries an electric current. The wire is placed between the poles of a magnet. This causes a force that pushes the wire upwards. force on wire S N current into page The poles of the magnet and the direction of the current are both reversed. Which arrow now shows the direction of the force on the wire? A N D B S C current out of page
Mark scheme: A
Q39 · The current in a resistor is 0.50 A and the potential difference across the resistor is…
39 The current in a resistor is 0.50 A and the potential difference across the resistor is 4.6 V. What is the resistance of the resistor? A 0.11 Ω B 2.3 Ω C 5.1 Ω D 9.2 Ω
Mark scheme: D
Q40 · During a fire in a laboratory storeroom, some radioactive material is spilt
40 During a fire in a laboratory storeroom, some radioactive material is spilt. A firefighter detects radiation through the lead-lined walls of the storeroom. The radiation is emitted by the radioactive material. lead-lined storeroom firefighter detector radioactive material Which type of radiation from the radioactive material is detected? A α-particles B β-particles C γ-rays D X-rays
Mark scheme: C
What was in this paper
The subtopics covered by these 40 questions, and how many questions each got. Open one in a new tab to see every Cambridge question on it.
2Sexual reproduction in humans2Air quality and climate1Alkenes1Alloys and their properties1Arrangement of elements1Chromatography1Chromosomes and genes1Circulatory systems1Coordination and response1Digestive system1Electrical circuits1Electrical quantities1Electrolysis1Electromagnetic effects1Electromagnetic spectrum1Energy flow1Energy, work and power1Extraction of metals1Forces1Formulas and terminology1Fuels1Gas exchange in humans1General properties of waves1Heart1Ions and ionic bonds1Light1Monohybrid inheritance1Motion1Photosynthesis1Physical and chemical changes1Radioactivity1Separation and purification1Simple phenomena of magnetism1Solids, liquids and gases1Sound1Transfer of thermal energy1Transition elements1What you needed in this session
Cambridge’s own grade thresholds for 2014 Oct/Nov, Paper 1 · Variant 2. A higher threshold means an easier paper — the bar moves with how the cohort did.