[PDF] Cambridge Primary Checkpoint - Science (0846) April 2017 Paper 2 MS.pdf | Plain Text

This document consists of 13 printed pages and 1 blank page. IB17 05_0846_02/5RP © UCLES 2017 [Turn over Cambridge International Examinations Cambridge Primary Checkpoint SCIENCE 0846/02 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.

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 2 of 14 Question Answer Marks Further Information 1(a) or 1 Accept both of these diagrams answered Accept any indication of either plant part any incorrect answer circled = 0 marks 1(b) flower leaf petal root 1 more than one answer circled = 0 marks Accept any indication of the correct answer

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 3 of 14 Question Answer Marks Further Information 2(a) true false 1 both required for 1 mark Accept T = true Accept F = false 2(b) true false 1 both required for 1 mark Accept T = true Accept F = false 2(c) true false 1 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 aluminium is not attracted to a magnet 2 each correct answer = 1 mark Accept only steel is magnetic = 2 marks Do not accept all metals are magnetic

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 4 of 14 Question Answer Marks Further Information 4(a) coconut animal sycamore seed wind sticky burr water method of dispersal seed 2 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 4(b) explosion / explosive 1 Accept description of explosion / self- dispersal 4(c) (idea of) strawberry/ seed(s) eaten and (seed) passes out in the waste / spit seeds out 1 both ideas of eating and passing out waste must be mentioned

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 5 of 14 Question Answer Marks Further Information 5(a) boiling water can be reversed by cooling the steam / idea that condensation is the reverse of evaporation or boiling (idea that cooked) rice cannot be changed back (into uncooked rice) 2 5(b) any two from water vapour or steam condenses / condensation happens cools 2 Ignore gas / vapour Accept touches a cold surface Question Answer Marks Further Information 6(a) 1 2 3 4 5 6 1 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

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 6 of 14 Question Answer Marks Further Information 7(a) anther and filament anther and ovary ovary and filament stigma and ovule stigma and style 1 more than one answer circled = 0 marks Accept any indication of the correct answer 7(b) The ovum of the female flower is fertilised by the pollen from the male flower. 1 Ignore anther / grain(s) 7(c) seed(s) 1 Question Answer Marks 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

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 7 of 14 Question Answer Mark Further Information 9 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. This part of the body is where food enters. It contains the tongue. 3 each correct label = 1 mark Question Answer Marks Further Information 10(a) vibrations 1 Accept vibrates / vibrating Ignore moves / movement / shakes 10(b) sound level meter 1 Accept sound meter / decibel meter 10(c) decibels meterbels soundbels unibels 1 more than one answer circled = 0 marks Accept any indication of the correct answer

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 8 of 14 Question Answer Marks Further Information 11(a) water 1 Accept H 2O 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

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 9 of 14 Question Answer Marks Further Information 12(a) or or or 2 three correct = 2 marks one or two correct = 1 mark switch, cell and lamp symbols in any order and any orientation Do not accept battery symbol for cell symbol 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. 1 more than one tick = 0 marks

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 10 of 14 Question Answer Marks Further Information 13(a) any two from   type of plant size of plant number of plants / the number of seeds amount of water / volume of water amount of soil / compost / fertilizer / minerals (type of) soil / compost / fertilizer / minerals temperature / amount of warmth amount of time / time size of pot / space (for roots) 2 each correct answer = 1 mark Ignore any answer about light or air Ignore same water / enough water Ignore same weather Ignore same time of day 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   the height / length / size / mass / number (of the plant or stem or leaves or roots)     the colour (of the plant or leaves) 1 Ignore answers about seeds

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 11 of 14 Question Answer Marks Further Information 14(a) compute r monitor on Rajiv light turned off 1 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 14(b) compute r monitor off Rajiv light turned on 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

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 12 of 14 Question Answer Mark Further Information 15 sieve the mixture lumps will not go through the sieve / powder or salt and steel goes through the sieve 2 each correct answer = 1 mark Ignore pick the copper out (as copper is in lumps)/ use a magnet / add water / filter / stir Do not accept funnel Question Answer Marks Further Information 16(a) ruler / rule / tape measure 1 Accept metre stick 16(b) 4.8 cm 5.0 cm 5.1 cm 5.3 cm 6.4 cm 1 more than one answer circled = 0 marks Accept any indication of the correct answer 16(c) (no) (idea that) 3.2 cm is a shorter distance / the distance is shorter (idea that) stronger magnet would give a longer distance 2 0 marks for no each correct answer = 1 mark Accept it only moves 3.2 cm Accept it should travel more than 5 (cm) Accept reverse arguments

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 13 of 14 Question Answer Marks Further Information 17(a) for a fair test / volume of water may change the time taken for all the water to evaporate 1 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 1 Question Answer Marks Further Information 18 animal grass plankton plant tree 1 more than one answer circled = 0 marks Accept any indication of the correct answer

0846/02 Primary Checkpoint Science – Mark Scheme April 2017 PUBLISHED © UCLES 2017 Page 14 of 14