Cambridge International Examinations Cambridge Primary Checkpoint 0846/02 SCIENCE Paper 2 April 2017 MARK SCHEME Maximum Mark: 50 IMPORTANT NOTICE Mark Schemes have been issued on the basis of one copy per Assistant examiner and two copies per Team Leader. 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 a 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 Principal Examiner Report for Teachers. Cambridge will not enter into discussions about these mark schemes. This document consists of 13 printed pages and 1 blank page. IB17 05_0846_02/5RP © UCLES 2017 [Turn over 0846/02 Primary Checkpoint Science – Mark Scheme PUBLISHED Question Answer 1(a) April 2017 Marks Further Information 1 Accept both of these diagrams answered Accept any indication of either plant part any incorrect answer circled = 0 marks or 1(b) flower leaf petal root 1 more than one answer circled = 0 marks Accept any indication of the correct answer © UCLES 2017 Page 2 of 14 0846/02 Primary Checkpoint Science – Mark Scheme PUBLISHED Question 2(a) Answer April 2017 Marks true 1 false Further Information both required for 1 mark Accept T = true Accept F = false 2(b) true 1 false both required for 1 mark Accept T = true Accept F = false 2(c) true 1 false both required for 1 mark Accept T = true Accept F = false Question Answer Marks Further Information 3(a) use an (electro)magnet 1 Accept steel is magnetic / steel is attracted to a magnet 3(b) steel is attracted to a magnet 2 each correct answer = 1 mark aluminium is not attracted to a magnet Accept only steel is magnetic = 2 marks Do not accept all metals are magnetic © UCLES 2017 Page 3 of 14 0846/02 Primary Checkpoint Science – Mark Scheme PUBLISHED Question Answer 4(a) method of dispersal April 2017 Marks seed 2 Further Information three correct = 2 marks two correct = 1 mark one correct = 0 marks more than one line drawn from a method of dispersal = 0 marks for that method animal coconut wind sycamore seed water sticky burr 4(b) explosion / explosive 1 Accept description of explosion / selfdispersal 4(c) (idea of) strawberry/ seed(s) eaten 1 both ideas of eating and passing out waste must be mentioned and (seed) passes out in the waste / spit seeds out © UCLES 2017 Page 4 of 14 0846/02 Primary Checkpoint Science – Mark Scheme PUBLISHED Question 5(a) Answer April 2017 Marks boiling water can be reversed by cooling the steam / idea that condensation is the reverse of evaporation or boiling Further Information 2 (idea that cooked) rice cannot be changed back (into uncooked rice) 5(b) 2 any two from Ignore gas / vapour water vapour or steam condenses / condensation happens Accept touches a cold surface cools Question 6(a) Answer 1 2 3 4 Marks 5 6 1 Further Information more than one answer circled = 0 marks Accept any indication of the correct answer 6(b) A B C D E F 1 both circled for 1 mark Accept any indication of the correct answer © UCLES 2017 Page 5 of 14 0846/02 Primary Checkpoint Science – Mark Scheme PUBLISHED Question Answer April 2017 Marks 1 7(a) anther and filament Further Information more than one answer circled = 0 marks Accept any indication of the correct answer anther and ovary ovary and filament stigma and ovule stigma and style 7(b) The ovum of the female flower is fertilised by the pollen from the male flower. 1 7(c) seed(s) 1 Question Answer Marks Ignore anther / grain(s) Further Information 8(a) evaporation 1 Accept boiling 8(b) liquid (to) solid 1 both correct in the correct order = 1 mark Ignore water to ice © UCLES 2017 Page 6 of 14 0846/02 Primary Checkpoint Science – Mark Scheme PUBLISHED Question Answer 9 Mark This part of the body starts the digestion of protein. It also contains acid. This part of the body absorbs the digested food into the blood. April 2017 3 Further Information each correct label = 1 mark This part of the body is where food enters. It contains the tongue. Question 10(a) Answer Marks vibrations 1 Further Information Accept vibrates / vibrating Ignore moves / movement / shakes 10(b) sound level meter 10(c) decibels meterbels soundbels unibels 1 Accept sound meter / decibel meter 1 more than one answer circled = 0 marks Accept any indication of the correct answer © UCLES 2017 Page 7 of 14 0846/02 Primary Checkpoint Science – Mark Scheme PUBLISHED Question Answer April 2017 Marks Further Information 11(a) water 1 Accept H2O 11(b) evaporated / changed into a gas / changed into a vapour 1 Do not accept steam is made / water has boiled 11(c) magnesium sulfate 1 Ignore salt / magnesium / sulfate / solid / crystals / solute / residue © UCLES 2017 Page 8 of 14 0846/02 Primary Checkpoint Science – Mark Scheme PUBLISHED Question Answer April 2017 Marks 2 12(a) or or Further Information three correct = 2 marks one or two correct = 1 mark or switch, cell and lamp symbols in any order and any orientation Do not accept battery symbol for cell symbol 1 12(b) The lamp can be anywhere in the circuit. The lamp must be next to the cell. The lamp must be next to the other lamp. The lamp must be next to the switch. © UCLES 2017 Page 9 of 14 more than one tick = 0 marks 0846/02 Primary Checkpoint Science – Mark Scheme PUBLISHED Question 13(a) Answer April 2017 Marks 2 any two from Further Information each correct answer = 1 mark Ignore any answer about light or air type of plant size of plant number of plants / the number of seeds Ignore same water / enough water amount of water / volume of water amount of soil / compost / fertilizer / minerals (type of) soil / compost / fertilizer / minerals temperature / amount of warmth Ignore same weather amount of time / time Ignore same time of day size of pot / space (for roots) Accept same pot Accept keep in same place 13(b) amount of light / in the light or in the dark / light level / intensity of the light / number of the lamps 1 Ignore just light 13(c) any one from 1 Ignore answers about seeds the height / length / size / mass / number (of the plant or stem or leaves or roots) the colour (of the plant or leaves) © UCLES 2017 Page 10 of 14 0846/02 Primary Checkpoint Science – Mark Scheme PUBLISHED Question Answer 14(a) Marks 1 light turned off Rajiv 14(b) April 2017 arrow from anywhere on the monitor to eye with arrow head towards the eye Ignore extra arrows drawn from the monitor if the arrows are pointing away from the monitor computer monitor on light turned on Further Information 1 arrow from bulb to eye with arrow head towards the eye Ignore arrows to the top of the head that will not pass through the eye Rajiv © UCLES 2017 computer monitor off Page 11 of 14 0846/02 Primary Checkpoint Science – Mark Scheme PUBLISHED Question 15 Answer April 2017 Mark 2 sieve the mixture Further Information each correct answer = 1 mark Ignore pick the copper out (as copper is in lumps)/ use a magnet / add water / filter / stir lumps will not go through the sieve / powder or salt and steel goes through the sieve Do not accept funnel Question 16(a) Answer Marks ruler / rule / tape measure 16(b) 4.8 cm Further Information 1 Accept metre stick 1 more than one answer circled = 0 marks Accept any indication of the correct answer 5.0 cm 5.1 cm 5.3 cm 6.4 cm 16(c) 2 (no) 0 marks for no each correct answer = 1 mark (idea that) 3.2 cm is a shorter distance / the distance is shorter Accept it only moves 3.2 cm (idea that) stronger magnet would give a longer distance Accept it should travel more than 5 (cm) Accept reverse arguments © UCLES 2017 Page 12 of 14 0846/02 Primary Checkpoint Science – Mark Scheme PUBLISHED Question 17(a) April 2017 Answer Marks for a fair test / volume of water may change the time taken for all the water to evaporate 1 Further Information Accept to make it fair Do not accept accurate / reliable 17(b) idea of a prediction e.g. as temperature increases the time will decrease / higher the temperature the faster the rate of evaporation Question 18 Answer animal 1 Marks 1 Further Information more than one answer circled = 0 marks grass plankton plant tree Accept any indication of the correct answer © UCLES 2017 Page 13 of 14 0846/02 © UCLES 2017 Primary Checkpoint Science – Mark Scheme PUBLISHED Page 14 of 14 April 2017