Download [PDF] April 2018 CAIE P1 Mark Schemes 0846 Science Cambridge Primary Checkpoint

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[PDF] April 2018 CAIE P1 Mark Schemes 0846 Science Cambridge Primary Checkpoint.pdf | Plain Text

This document consists of 16 printed pages. IB18 05_0846_01/5RP © UCLES 2017 [Turn over Cambridge International Examinations Cambridge Primary Checkpoint SCIENCE 0846/01 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 t he 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 alternativ e 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 – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 2 of 16 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

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 3 of 16 Question Answ er Marks Further Information 1 solid added to water does the solid dissolve? iron (no) salt yes sand no silver no sugar yes 2 four correct = 2 marks two or three correct = 1 mark one correct = 0 marks Question Answ er Marks Further Information 2 Mass is measured in kilograms / kg / Kg . Force is measured in newtons / N . Weight is measured in newtons / N . 2 three correct = 2 marks one or two correct = 1 ma rk Do not accept n for newtons

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 4 of 16 Question Answ er Marks Further Information 3 Food chains start with a producer . An animal that eats plants is called a consumer / herbivore . An animal that eats another animal is called a consumer / predator / ca rnivore . 3 each correct sentence = 1 mark Ignore plant for producer Question Answ er Marks Further Information 4(a) The drum makes a higher pitch sound when the skin is (idea of) tighter / stretched / pulled . 1 answer must be comparative 4(b) The drum makes a louder sound when (idea of) hit harder. 1 answer must be comparative

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 5 of 16 Question Answ er Marks Further Information 5(a) condensation evaporation filtration magnetic attraction  1 more than one tick = 0 marks 5(b) condensation evaporation  filtration magnetic attraction 1 more than one tick = 0 marks 5(c) condensation evaporation filtration  magnetic attraction 1 more than one tick = 0 marks

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 6 of 16 5(d) condensation evaporation  filtration  magnetic attraction 1 two correct ticks = 1 mark one tick or m ore than two tick s = 0 marks Question Answ er Marks Further Information 6(a) A B C D E F 1 more than one answer circled = 0 marks 6(b) A B C D E F 1 more than one answer circled = 0 marks 6(c) A B C D E F or A B C D E F or A B C D E F 1 Accept B (instead of or as well as D) more than one answer circled other than B and D = 0 marks

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 7 of 16 Question Answ er Marks Further Information 7(a) cable cover is plastic . wire is metal . 1 both required for 1 mark 7(b) The cable c over is a good insulator (of electricity) . 1 Question Answ er Marks Further Information 8 conducts electricity conducts heat insoluble in water  magnetic melting point above 100 °C  non- poisonous  2 three correct = 2 m arks one or two correct = 1 mark four boxes ticked with three correct = 1 mark four (with less than three correct) , five or six ticked boxes = 0 marks

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 8 of 16 Question Answ er Marks Further Information 9(a) When he opens the door he uses a pulling f orce. When he closes the door he uses a pushing force. 1 both correct for 1 mark 9(b ) add carpet under the door make the door bigger make the door heavier put a mat in front of the door 1 more than one answer circled = 0 marks add oil to the door

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 9 of 16 Question Answ er Marks Further Information 10(a) 37 (°C) 1 10(b) 17 (°C) 1 Accept ecf b ased on incorrect answer from (a) 10(c ) boil s / turn s into steam / stays at 100 °C / stays at the same temperature 1 Accept the liquid becomes a gas / evapora tes / turns into water vapour Accept it is at boiling point / (temperature) stops going any higher 10(d ) melted 1 Accept melting / melt (s)

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 10 of 16 Question Answ er Marks Further Information 11(a) C D A B 2 four corr ect = 2 marks two or three correct =1 mark one correct = 0 marks 11(b) 8 6 spider insect 2 each correct set of vertical answer s = 1 mark ei ther order Accept 8 and 6 for number of legs = 1 mark if no other marks awarded

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 11 of 16 Question Answ er Marks Further Information 12 A flower / petal B leaf / leaves C root / roots 1 all three correct = 1 mark Question Answ er Marks Further Info rmation 13 The Earth takes one year to orbit the Sun. The Earth spins on its axis as it orbits the Sun. 2 each correct answer = 1 mark Accept 365 days

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 12 of 16 Question Answ er Marks Further Information 14 material description flammable liquid gasoline colourless gas gold green gas mercury attracted to a magnet oxygen shiny solid silver liquid 4 each correct line = 1 mark If two lines from a material then this is incorrect for this material

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 13 of 16 Question Answ er Marks Further Information 15(a) If the material is transparent I predict light will get out (of the hole) / light will pass through (the material) . 1 Accept you will be able to see the light (from the f lashlight) 15(b ) light goes into our eyes light is reflected by our eyes light goes into the flashlight light is reflected by the flashlight 1 more than one answer circled = 0 marks Question Answ er Marks Further Information 16(a) pollen (grain) 1 16(b) pollination 1 Ignore reproduction

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 14 of 16 Question Answ er Marks Further Information 17 (a) warmth / suitable temperature 1 Accept oxygen 17 (b) bar chart / (line or bar ) graph / picture / drawing / diagram / pho tograph / poster 1 17 (c) On day 4 the root and stem are the same (length ). On day 5 the stem is longer or bigger than the root / the root is shorter or smaller than the stem. 2 answer must be comparative Accept on day 4 the root is 4 ( cm ) and the stem is 4 (cm ) / root and stem are equal / root and stem are both 4 (cm) answer must be comparative Accept on day 5 the root is 5.6 ( cm) and the stem is 5.9 ( cm) / stem is 0.3 (cm) longer than the root

0846/01 Checkpoint Primary – Mark Scheme April 2018 PUBLISHED © UCLES 2018 Page 15 of 16 Question Answ er Marks Further Informa tion 18(a) In this position the magnets will repel . In this position the magnets will repel . 1 both correct for 1 mark 18(b) south 1 Accept S 18(c) aluminium comb copper pipe gold ring iron nail nickel coin steel paper clip 2 three cor rect = 2 marks two correct = 1 mark one correct = 0 marks four circled three correct = 1 mark four circled two or one correct = 0 marks five or six circled = 0 marks

0846/01 Checkpoint Primary – Mark Scheme April 2018 PRE-STANDARDISATION © UCLES 2018 Page 16 of 16 Question Answ er Marks Further Information 19 1 If any arrows drawn, they must point in the correct direction the line drawn must start at the mirror and original ray line drawn in this area