Download [PDF] October 2018 CAIE P2 Mark Schemes 0846 Science Cambridge Primary Checkpoint

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[PDF] October 2018 CAIE P2 Mark Schemes 0846 Science Cambridge Primary Checkpoint.pdf | Plain Text

This document consists of 12 printed pages. IB18 10_0846_02/3RP © UCLES 2018 [Turn over Cambridge International Examinations Cambridge Primary Checkpoint SCIENCE 0846/02 Paper 2 October 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.

0846/02 Checkpoint Primary 2 Science – Mark Scheme October 2018 PUBLISHED © UCLES 2018 Page 2 of 12 Question Answer Marks Further Information 1(a) kilograms(s)/gram(s) 1 Accept kg / g 1(b) spring mass 1 Accept any downwards pointing arrow(s) on the diagram or in the answer space any incorrect arrows = 0 marks Question Answer Marks Further Information 2(a) Sugar dissolves in water because water is a solvent . Chalk does not dissolve because it is insoluble . 2 each correct answer = 1 mark 2(b) blue 1 Ignore light / dark 2(c) salt 1 Ignore crystals

0846/02 Checkpoint Primary 2 Science – Mark Scheme October 2018 PUBLISHED © UCLES 2018 Page 3 of 12 Question Answer Marks Further Information 3(a) the colour of the litter the mass of the litter the shape of the litter the type of litter where she found the litter 1 more than one answer circled = 0 marks 3(b) (idea of) less litter / the bins contain litter / students are throwing litter into the bins 1 Accept other words for litter e.g. garbage / trash 3(c) The total for papers is 24 . The total for plastic bottles is 17 . The lowest number is for straws . 1 all three correct for 1 mark Accept 12 for straws 3(d) (idea that) they are different sizes 1 Accept different masses or weights

0846/02 Checkpoint Primary 2 Science – Mark Scheme October 2018 PUBLISHED © UCLES 2018 Page 4 of 12 Question Answer Marks Further Information 4 material property white solid carbon dioxide flammable liquid gasoline melting point of 0 C mercury colourless gas steel silver liquid water attracted to a magnet pink solid 5 each correct match = 1 mark two or more lines from a material = 0 for this material

0846/02 Checkpoint Primary 2 Science – Mark Scheme October 2018 PUBLISHED © UCLES 2018 Page 5 of 12 Question Answer Marks Further Information 5(a) (sun ) rose  aphid  beetle  bird 2 all three arrows in correct direction = 1 mark arrows must have arrow heads pointing in the correct direction (from rose to bird) all organisms in correct order = 1 mark 5(b) Beetle 1 more than one organism e.g. beetle and aphid = 0 marks Question Answer Marks Further Information 6(a) 0 1 2 3 4 1 more than one circled = 0 marks 6(b) or 1 one line must be longer than the other but they can be the any thickness 6(c) (Predict what will happen if the object is a good conductor) lamp will be bright / lamp will light up / lamp will glow . (Predict what will happen if the object is a bad conductor) lamp will be dim / lamp will not light up / lamp will not glow . 1 both correct = 1 mark Accept light or bulb for lamp Accept the lamp turns on Accept lamp or bulb will not work / the lamp does not turn on

0846/02 Checkpoint Primary 2 Science – Mark Scheme October 2018 PUBLISHED © UCLES 2018 Page 6 of 12 6(d)  1 more than one box ticked = 0 marks

0846/02 Checkpoint Primary 2 Science – Mark Scheme October 2018 PUBLISHED © UCLES 2018 Page 7 of 12 Question Answer Marks Further Information 7(a) day night W Z X Y 1 all correct = 1 mark 7(b) 1 part of the Earth must be within the guidelines and on the orbit (dotted line) Question Answer Marks Further Information 8(a) thermometer 1 Accept temperature probe 8(b) increases (idea of then) stays constant / stays the same 2 each correct answer = 1 mark Accept gets hotter / becomes hot / heats up Question Answer Marks Further Information 9 reproduction 1 more than one process = 0 marks

0846/02 Checkpoint Primary 2 Science – Mark Scheme October 2018 PUBLISHED © UCLES 2018 Page 8 of 12 Question Answer Marks Further Information 10(a) D B A C 2 four in correct boxes = 2 marks two or three in correct boxes = 1 mark one in correct box = 0 marks 10(b) All of the materials allow light to pass through. None of the materials allow light to pass through. One material is opaque.  Three materials let most light through.  Two materials are opaque. Two materials let most light through. 2 each correct answer = 1 mark two ticks = 2 marks one tick = 1 mark three ticks 2 correct = 1 mark three ticks 1 correct = 0 marks

0846/02 Checkpoint Primary 2 Science – Mark Scheme October 2018 PUBLISHED © UCLES 2018 Page 9 of 12 Question Answer Marks Further Information 11(a) pollen is collected from the male organ / is collected from the stamen / is collected from the anther 2 only award pollen mark if the context is correct e.g. pollen is made / pollen is collected / pollen is taken Accept examples when an insect is involved in moving the pollen e.g. pollen is collected by the insect = 2 marks 11(b) pollination / transfer of pollen (to female part or flower) 1 Accept pollen falls (off the insect or onto the stigma) / pollen is collected by the stigma Question Answer Marks Further Information 12(a) The water in the beaker vibrates / moves / rises / increases / splashes / bubbles / shakes . This is because the tuning fork is vibrating / shaking / moving . 2 each correct answer = 1 mark Accept other words that means there is movement 12(b) vibrate the tuning fork harder 1 Accept hit the tuning fork harder / hit the tuning fork more (than once) / add another tuning fork

0846/02 Checkpoint Primary 2 Science – Mark Scheme October 2018 PUBLISHED © UCLES 2018 Page 10 of 12 Question Answer Marks Further Information 13(a) C and D 1 13(b) E 1 13(c) C 1 13(d) A 1

0846/02 Checkpoint Primary 2 Science – Mark Scheme October 2018 PUBLISHED © UCLES 2018 Page 11 of 12 Question Answer Marks Further Information 14 light /sunlight / Sun is reflected (by the water) 2 light = 1 mark reflected = 1 mark Question Answer Marks Further Information 15(a) measuring beaker measuring cylinder measuring jug measuring scales measuring spoon 1 more than one answer circled = 0 marks 15(b) 6 (cm) 10 (cm) 4 (cm) increases / goes up / is more / taller / grows 2 four correct = 2 marks two or three correct = 1 mark one correct = 0 marks Accept error carried forward from previous two numbers i.e. the difference between these numbers 15(c) repeat / do the investigation with more seeds 1 Accept find the average / use more than one

0846/02 Checkpoint Primary 2 Science – Mark Scheme October 2018 PUBLISHED © UCLES 2018 Page 12 of 12 Question Answer Marks Further Information 16 any two from are attached to bones / to pull bones / to move the bones work in pairs / A and B work together / work together contract / contracting relax / relaxing 2 each correct statement = 1 mark Accept by the bones moving Accept antagonistic