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This document consists of 10 printed pages. IB17 10_0846_01/4RP © UCLES 2017 [Turn over Cambridge International Examinations Cambridge Primary Checkpoint SCIENCE 0846/01 Paper 1 October 2017 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.

0846/01 Checkpoint Primary Science – Mark Scheme October 2017 PUBLISHED © UCLES 2017 Page 2 of 13 Annotations and abbreviations / OR alternate responses for the same marking point ( ) the words or units in brackets do not need to 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

0846/01 Checkpoint Primary Science – Mark Scheme October 2017 PUBLISHED © UCLES 2017 Page 3 of 13 Question Answer Marks Further Information 1 plant / producer Sun / light / sunlight 2 Ignore named plants Question Answer Marks Further Information 2 Force is measured in newtons . Mass is measured in kilograms . 2Accept N Do not accept n Accept any suitable measurement of mass e.g. grams, kg, g Question Answer Marks Further Information 3 iron steel 2Accept nickel and cobalt Question Answer Marks Further Information 4 long neck / long legs to reach food / to reach leaves / to reach the top of the tree 2each correct answer = 1 mark Ignore other features e.g. camouflage

0846/01 Checkpoint Primary Science – Mark Scheme October 2017 PUBLISHED © UCLES 2017 Page 4 of 13 Question Answer Marks Further Information 5 germinationpollination fertilisation seed production 2four correct = 2 marks two or three correct = 1 mark one correct = 0 marks Question Answer Marks Further Information 6(a) substance state at –10°C state at 50°C state at 150°C water solid liquid gas salt solid solid solid wax solid liquid liquid oxygen gas gas gas nitrogen gas gas gas 3each correct answer = 1 mark Accept steam / water vapour Accept nitrogen vapour 6(b) 0 1unit not needed 6(c) freezing 1

0846/01 Checkpoint Primary Science – Mark Scheme October 2017 PUBLISHED © UCLES 2017 Page 5 of 13 Question Answer Marks Further Information 7(a) Jupiter Mars Neptune Saturn Uranus 1more than one answer circled = 0 marks 7(b) 0 1 2 3 4 1more than one answer circled = 0 marks

0846/01 Checkpoint Primary Science – Mark Scheme October 2017 PUBLISHED © UCLES 2017 Page 6 of 13 Question Answer Marks Further Information 8(a) longer / deeper (into soil) / more branches 1Ignore just grows 8(b) any two from larger / bigger increase in number / more of them become green 1two answers required for 1 mark Ignore leaves grow 8(c) any one from to spread the leaves out (to collect light) to reach the sunlight / so they can absorb more sunlight to transport water / minerals / nutrients to the leaves to support the plant or leaves 1 Ignore just to get the nutrients / water

0846/01 Checkpoint Primary Science – Mark Scheme October 2017 PUBLISHED © UCLES 2017 Page 7 of 13 Question Answer Marks Further Information 9(a) does it conduct electricity? 1Accept group A conduct electricity / group B does not conduct electricity 9(b) solid, liquid or gas (at room temperature) 1Accept group C are solids / group D are liquids and gases Question Answer Marks Further Information 10 uterus (womb) – idea of holding or protecting the fetus / baby liver – makes bile / makes digestive juices / helps (small intestine) digest food / removes toxins, poisons or alcohol / breaks down harmful substances / removes harmful substances 2one function for each organ = 1 mark

0846/01 Checkpoint Primary Science – Mark Scheme October 2017 PUBLISHED © UCLES 2017 Page 8 of 13 Question Answer Marks Further Information 11(a) any one from hunting / killing for medicine clearing land / deforestation / habitat destruction 1 11(b) any two from no hunting allowed / hunting can be controlled / elephants are kept safe / hunting can be made illegal / laws made to stop hunting education / use of campaigns medicine available / vets in the park elephants can breed more easily / are bred 2each correct answer = 1 mark Accept poaching for hunting Question Answer Marks Further Information 12(a) hits the drum with less force 1 12(b) The less loud the sound the smaller the vibrations. 1 12(c) sound (level) meter / decibel meter 1

0846/01 Checkpoint Primary Science – Mark Scheme October 2017 PUBLISHED © UCLES 2017 Page 9 of 13 Question Answer Marks Further Information 13(a) beats per minute beats pulse minute beats pulse moment bits per minute bits per moment 1more than one answer circled = 0 marks 13(b) His resting pulse rate is 65 bpm. His highest pulse rate is 92 bpm. His average (mean) pulse rate is 80 bpm. 2three correct = 2 marks one or two correct = 1 mark

0846/01 Checkpoint Primary Science – Mark Scheme October 2017 PUBLISHED © UCLES 2017 Page 10 of 13 Question Answer Marks Further Information 14 12d f r s 34 is i iise e e e a c t tol l s v v n ng g 4each correct answer = 1 mark answers in the grid take precedence over answer in the clues Accept minor spelling errors e.g. dessolves for dissolves Do not accept if it is an incorrect word e.g. filterate for filtering Question Answer Marks Further Information 15 2three bulbs with correct symbols = 1 mark two cells in series with or without the line between them, correct symbols and all connected together without gaps in wires = 1 mark

0846/01 Checkpoint Primary Science – Mark Scheme October 2017 PUBLISHED © UCLES 2017 Page 11 of 13 Question Answer Marks Further Information 16(a) thermometer 1 16(b) 0 20 40 024 time in minutes temperature in °C 6810 60 80 100 120 3 Accept a tolerance of ½ a small square four or five points plotted correctly = 2 marks two or three points plotted correctly = 1 mark one point plotted correctly = 0 marks points joined by straight lines = 1 mark Accept ecf of the line using plotted points 16(c) boiling / changing to a gas / changing to a vapour 1 Accept evaporation 16(d) 3.5 – 3.8 (minutes) 1 Accept 3 mins 36 secs – 3 mins 48 secs

0846/01 Checkpoint Primary Science – Mark Scheme October 2017 PUBLISHED © UCLES 2017 Page 12 of 13 Question Answer Marks Further Information 17(a) letter S in bottom right hand box stick S 1Accept any indication of the correct answer e.g. tick() or cross () more than one box with letter S = 0 marks 17(b) meter ruler / ruler / measuring tape 1Ignore chalk Do not accept scale 17(c) light shines on the ground light changes direction light is reflected light is blocked  1more than one box ticked = 0 marks 17(d) answer observation prediction question 1more than 1 circled = 0 marks

0846/01 Checkpoint Primary Science – Mark Scheme October 2017 PUBLISHED © UCLES 2017 Page 13 of 13 17(e) the light is coming from a different direction Yo u a r e moving the stick. You are making the stick shorter. The light is coming from a different direction. The light is closer to the stick. 1more than 1 circled = 0 marks