IGCSE Sciences - Co-Ordinated (0654) — October–November 2023, Paper 11
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →1 Which characteristic of a living organism releases energy for growth? A excretion B reproduction C respiration D sensitivity
Answer this question and get it marked →2 A student draws a diagram of a chicken’s egg and includes the magnification, m, of the drawing. The student writes m = 2. The image length on the diagram is 140 mm. What is the…
Answer this question and get it marked →3 Which colour does Benedict’s solution change to when heated with a reducing sugar? A blue B blue-black C orange D purple 3
Answer this question and get it marked →4 Which graph shows the effect of temperature on enzyme activity? A B enzyme enzyme activity activity temperature temperature C D enzyme enzyme activity activity temperature…
Answer this question and get it marked →5 Which conditions will result in the highest rate of photosynthesis? carbon dioxide light intensity concentration A high high B high low C low high D low low
Answer this question and get it marked →6 Which row about food groups is correct? food group main function food source examples A carbohydrate provide energy bread, pasta, rice B fat tissue growth and repair bread,…
Answer this question and get it marked →7 Which label shows the position of the xylem in the cross-section of the root of a dicotyledonous plant? B A C D
Answer this question and get it marked →8 The apparatus shown is set up and left for 10 minutes. The insects are able to move around in the test-tube but the wire mesh prevents them from falling into the sodium…
Answer this question and get it marked →9 One response to a frightening situation is an increase in heart rate caused by the release of adrenaline. Which statement about adrenaline is correct? A It is an enzyme produced…
Answer this question and get it marked →10 Which part of the male reproductive system is correctly matched to its function? part function A prostate gland transfers sperm to the urethra B scrotum holds the testes…
Answer this question and get it marked →11 Continuous variation is defined as a ......1...... of phenotypes ......2...... . Which words correctly complete gaps 1 and 2? 1 2 A limited number between two extremes B…
Answer this question and get it marked →12 In a food chain, what do all living organisms get from their food? A a supply of water B oxygen for respiration C protection from disease D the energy they need 6
Answer this question and get it marked →13 Forests are cut down and burnt in deforestation programmes. As a result of this, which gas in the atmosphere increases in concentration? A carbon dioxide B hydrogen C nitrogen…
Answer this question and get it marked →14 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. X P Q R Which mixtures…
Answer this question and get it marked →15 What do the chemical symbols N2 and Ni represent? N2 Ni A a compound a compound B a compound an element C an element a compound D an element an element 7
Answer this question and get it marked →16 The nucleon number of a hydrogen atom is 1. What is present inside the nucleus of this atom? A one proton and one electron B one proton and one neutron C one proton only D one…
Answer this question and get it marked →17 The diagram represents an ionic compound formed from three types of atom. key oxygen sodium sulfur What is the chemical formula for this compound? A Na2S4O B NaO4S2 C Na2SO4 D…
Answer this question and get it marked →18 The diagram shows the electrolysis of dilute sulfuric acid using inert electrodes. dilute sulfuric acid – + 6 V d.c. Which substance is produced by electrolysis at the negative…
Answer this question and get it marked →19 When petrol burns in a car engine, carbon monoxide, CO, and nitrogen monoxide, NO, are produced. These gases pass through a catalytic converter where carbon monoxide reacts…
Answer this question and get it marked →20 Four different oxides are listed. 1 calcium oxide 2 lithium oxide 3 nitrogen oxide 4 phosphorus oxide Which oxides are acidic oxides? A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4
Answer this question and get it marked →21 Substance X is mixed with aqueous sodium hydroxide. A green precipitate is produced. Which metal ion is present in X? A Cu2+ B Fe2+ C Fe3+ D Zn2+
Answer this question and get it marked →22 Potassium is in Group I of the Periodic Table. Which statement about potassium is correct? A It is a relatively hard metal. B It is less dense than lithium. C It has a higher…
Answer this question and get it marked →23 What is a use for argon? A as a catalyst B in alloys C in lamps D neutralising chemical waste
Answer this question and get it marked →24 Which metal is extracted from its ore by electrolysis? A aluminium B copper C gold D iron
Answer this question and get it marked →25 Which gas is present in clean air? A carbon dioxide B carbon monoxide C nitrogen dioxide D sulfur dioxide
Answer this question and get it marked →26 Which statement about petroleum is correct? A It contains mostly alkene molecules. B It is a mixture of hydrocarbons. C It is separated into fractions by cracking. D Its main…
Answer this question and get it marked →27 Which statement about poly(ethene) is correct? A It always contains less than 12 carbon atoms. B It is formed from ethane. C It is formed from ethene. D It occurs naturally. 10
Answer this question and get it marked →28 The speed–time graph represents part of a car journey. 18 speed m/s 10 0 0 5 time / s How far does the car travel in the part of the journey shown? A 20 m B 45 m C 70 m D 90 m
Answer this question and get it marked →29 The mass of an empty measuring cylinder is 15 g. Liquid is poured into it and the total mass is now 95 g. The reading on the measuring cylinder is shown. cm3 measuring cylinder…
Answer this question and get it marked →30 The diagram shows a child of weight 240 N sitting on a see-saw (teeter-totter) at a distance of 1.6 m from the pivot. 1.6 m child pivot 240 N What is the moment of the weight…
Answer this question and get it marked →31 Which two energy sources are both non-renewable? A oil and geothermal resources B oil and natural gas C tides and geothermal resources D tides and wind
Answer this question and get it marked →32 Someone wearing wet clothes can feel cold even on a warm day. Why do they feel cold? A Water gives out heat as it evaporates. B Water takes in heat as it evaporates. C Water…
Answer this question and get it marked →33 How is thermal energy transferred from the Sun through the vacuum of space? A by conduction and convection B by convection and radiation C by convection only D by radiation…
Answer this question and get it marked →34 A ray of light enters a parallel-sided glass block. At which labelled point does the ray leave the block? A B C D glass block ray of light
Answer this question and get it marked →35 Which change to a sound wave makes the sound louder? A decreasing the amplitude B decreasing the wavelength C increasing the amplitude D increasing the wavelength 13
Answer this question and get it marked →36 Three charged balls P, Q and R are suspended by insulating threads. Ball P is negatively charged. Ball Q is brought close to ball P. The balls move away from each other.…
Answer this question and get it marked →37 Which two electrical quantities are measured in the same unit? A current and potential difference (p.d.) B current and electromotive force (e.m.f.) C potential difference…
Answer this question and get it marked →38 A battery is connected in a circuit to a 3.0 resistor, a 6.0 resistor and two ammeters P and Q. A Q P 3.0 Ω A 6.0 Ω What is the combined resistance of the two resistors and…
Answer this question and get it marked →39 The current in an electric kettle used to boil water is 9.0 A. What is the most appropriate rating of fuse to use with this kettle? A 1A B 3A C 8A D 13 A
Answer this question and get it marked →40 A nuclide of hydrogen is represented by 13 H. Which row shows the number of protons and the number of neutrons in this nuclide? protons neutrons A 1 2 B 1 3 C 2 1 D 3 1 15
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