Download [PDF] April 2018 CAIE P1 Mark Schemes 1113 Science Cambridge Lower Secondary Checkpoint

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[PDF] April 2018 CAIE P1 Mark Schemes 1113 Science Cambridge Lower Secondary Checkpoint.pdf | Plain Text

This document consists of 12 printed pages. IB18 05_1113_01/2RP © UCLES 2017 [Turn over Cambridge International Examinations Cambridge Secondary 1 Checkpoint SCIENCE 1113/01 Paper 1 April 2018 MARK SCHEME Maximum Mark: 50 Published This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Markers were instructed to award marks. It does not indicate the details of the discussions that took place at an Markers’ meeting before marking began, which would have considered the acceptability of alternative answers. Mark schemes should be read in conjunction with the question paper and the End of Series Report. Cambridge will not enter into discussions about these mark schemes.

1113/01 Checkpoint Secondary 1 Science – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 2 of 12 Annotations and abbreviations / OR alternate responses for the same marking point ( ) the words or units in brackets do not need to be stated Accept an acceptable response Do not accept indicates an incorrect response that would contradict another otherwise correct alternative Ignore indicates an irrelevant answer that is not creditworthy, however, full marks can still be achieved even with the answers that are ignored ecf error carried forward, marks are awarded if an incorrect response has been carried forward from earlier working, provided the subsequent working is correct ora or reverse argument note provides extra information when necessary

1113/01 Checkpoint Secondary 1 Science – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 3 of 12 Question Answer Marks Further Information 1 cell function type of cell absorbs water and mineral salts contracts to cause movement transports oxygen around the body uses light energy to make food 4each correct line = 1 mark Note if 2 lines from one ‘function box’ or 2 lines to one ‘cell type box’ then award no marks for the 2 lines even if one is correct.

1113/01 Checkpoint Secondary 1 Science – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 4 of 12 Question Answer Marks Further Information 2 also called heat energy (also called radiant energy) energy of moving objects energy released by vibrating objects stored energychemical kinetic (light) sound thermal a fire a boy talking (the Sun) a girl running food description type of energyexample 4 first two columns four correct matching = 2 marks two or three correct matching = 1 mark one correct match = 0 marks last two columns four correct matching = 2 marks two or three correct matching = 1 mark one correct match = 0 marks

1113/01 Checkpoint Secondary 1 Science – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 5 of 12 Question Answer Marks Further Information 3(a) A 1more than one answer = 0 marks 3(b)(i) 3 1more than one answer = 0 marks Accept scratched by copper coin 3(b)(ii) 6 1more than one answer = 0 marks Accept scratched by steel file 3(c) igneous (rock) 1Accept magmatic (rock) Accept pumice / basalt / granite / obsidian Ignore intrusive or extrusive Ignore magma Question Answer Marks Further Information 4 A = trachea B = bronchus C = diaphragm 3

1113/01 Checkpoint Secondary 1 Science – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 6 of 12 Question Answer Marks Further Information 5(a) The reaction between an acid and an alkali is called neutralisation . 1 5(b) The reaction between iron and copper sulfate to form iron sulfate and copper is called displacement . 1 5(c) This is because the reaction is endothermic . 1 Question Answer Marks Further Information 6(a) A red B no light 2each correct colour = 1 mark Accept black / no colour 6(b) A blue B blue 2each correct colour = 1 mark

1113/01 Checkpoint Secondary 1 Science – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 7 of 12 Question Answer Marks Further Information 7(a)(i) as the mass increases the heart rate decreases / negative correlation between body mass and heart rate 1Accept ora 7(a)(ii) any one from monkey (1) its heart rate is too high for its mass (1) or cat (1) its heart rate is too low for its mass (1) 2the reason is dependent on the correct animal the answer must refer to both mass and heart rate Accept reverse argument 7(a)(iii) use of a line graph / bar chart / bar graph 1Accept scatter graph 7(b) any one from (idea that) a chicken is a bird / chicken is not a mammal you would expect the chicken to have a smaller mass than the rabbit given its heart rate you would expect chicken’s heart rate to be between 150 and 205 bpm given its mass 1 Accept recognise that it has a different metabolism or physiology

1113/01 Checkpoint Secondary 1 Science – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 8 of 12 Question Answer Marks Further Information 8(a) (idea of) to check whether it is correct 1 8(b) (idea of) adding litmus or pH indicator or pH solution or pH paper or Universal Indicator (solution) correct colour of named indicator in acid – dependent on name of correct indicator 2 (Litmus) turns red (pH / Universal) turns red or orange or yellow Accept other named indicators with correct colour in acid

1113/01 Checkpoint Secondary 1 Science – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 9 of 12 Question Answer Marks Further Information 9(a)(i) 3 (g) 1 9(a)(ii) mass of each ball is small / not very accurate to measure small mass / to increase the accuracy / reduces error / makes results more reliable 1Accept so all balls have the same mass / so it is fair 9(b) The volume of water in the measuring cylinder is 21 cm 3. The volume of the water and 10 balls in the measuring cylinder is 36 cm 3. The difference in volume between these two readings is 15 cm 3. The volume of one ball is 1.5 cm 3. 2four readings correct = 2 marks two or three readings correct = 1 mark one reading correct = 0 marks Accept ecf for the difference in volume between the candidates two readings e.g. if readings are 20 and 37 then difference is 17 and volume of 1 ball is 1.7 9(c) 2 (g / cm 3) 1Accept ecf from (a) and (b) for mass and volume measurements

1113/01 Checkpoint Secondary 1 Science – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 10 of 12 Question Answer Marks Further Information 10(a)(i) natural selection 1Accept evolution 10(a)(ii) (Charles) Darwin 1 10(b) species A = akiapolaau species D = Nihoa finch 2 Question Answer Marks Further Information 11(a) 13 1 11(b) Rutherford 1 11(c) 3 1Accept 13 / III / 3 rd group 11(d) (good) conductor of electricity 1Accept ductile / flexible / malleable / low density 11(e) aluminium oxide 1

1113/01 Checkpoint Secondary 1 Science – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 11 of 12 Question Answer Marks Further Information 12 thermal energy lost from surface of skin by .......................................................................... . ....................................................................................... . thermal energy lost by air movements bythermal energy gained from rock by .......................................................................................... . radiation conduction convection 2three correct = 2 marks one or two correct = 1 mark Question Answer Marks Further Information 13 water carbon dioxide 2each correct answer = 1 mark either order

1113/01 Checkpoint Secondary 1 Science – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 12 of 12 Question Answer Marks Further Information 14 any two from light source / lamp the same type of water plant size of the water plant temperature time taken (for experiment) 2 Accept light intensity / distance from beaker or light Accept same number of leaves / same mass of water plant Accept the amount of carbon dioxide / concentration of carbon dioxide / mass of carbon dioxide Accept volume of water / amount of water / mass of water / level of water