[PDF] Cambridge Primary Checkpoint - Science (0846) October 2015 Paper 1 MS.pdf | Plain Text

This document consists of 11 printed pages and 1 blank page. IB15 10_0846_01/*RP © UCLES 2015 [Turn over Cambridge International Examinations Cambridge Primary Checkpoint SCIENCE 0846/01 Paper 1 October 2015 FINAL 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.

2 © UCLES 2015 0846/01/O/N/15 Question number 1 CPS00356 Part Mark Answer Further Information (a) 1 bird grass locust scorpion more than one word circled = 0 marks Accept any indication of the correct answer (b) 1 grass Ignore plants (c) 1 locust Ignore insects (d) 1 Producer predator prey more than one word circled = 0 marks Accept any indication of the correct answer (e) 1 arrow from tick to baboon = 1 mark any incorrect arrows = 0 marks if no arrow drawn please check the food chains at the beginning of the question Total 5 baboon tick

3 © UCLES 2015 0846/01/O/N/15 Question number 2 CPS00452 Part Mark Answer Further Information (a) 1 both correct = 1 mark Accept day and night correctly labelled Accept if they are drawn outside the circle e.g. D N (b) 1 spins the lamp on its own axis spins the ball on its own axis moves the lamp around the ball moves the ball around the lamp more than one answer circled = 0 marks Accept any indication of the correct answer Total 2 Question number 3 CPS00226 Part Mark Answer Further Information (a) 1 touch Accept feeling / feel Do not accept sensitivity / hands (b) 1 When they guess what the object is this is called a prediction . Accept any indication of the correct answer but response on answer line takes precedence (c) 1 sight Accept seeing / see / visual Ignore looking / eyes Total 3 lampball DN

4 © UCLES 2015 0846/01/O/N/15 Question number 4 CPS00406 Part Mark Answer Further Information (a) 1 more than one answer circled = 0 marks Accept any indication of the correct answer (b) 1 Key A has a higher pitch Key B has a higher pitch  Key A is louder than key B. Key B is louder than key A. more than one answer ticked = 0 marks Accept any indication of the correct answer Total 2 Question number 5 CPS00380 Part Mark Answer Further Information (a) 1 melting Accept melt / melted (b) 1 boiling / evaporation Accept boil / evaporate Ignore heating (c) 1 freezing Accept freeze Ignore solidifying (d) 1 condensation Accept condense / condensing Total 4 the loudness of a sound the mass of an objectthe weight of an objectthe speed of a sound

5 © UCLES 2015 0846/01/O/N/15 Question number 6 CPS00299 Part Mark Answer Further Information (a) 1 strong Accept insoluble in water Ignore not poisonous Do not accept attracted to a magnet not attracted to a magnet brittle (breaks easily) flexible (bends easily) poisonous soluble in water weak a good electrical conductor a poor electrical conductor (b) 1 attracted to a magnet more than one property = 0 marks (c) 1 not poisonous / insoluble in water Accept flexible (bends easily) Ignore strong Do not accept attracted to a magnet not attracted to a magnet brittle (breaks easily) poisonous soluble in water weak a good electrical conductor a poor electrical conductor (d) 1 flexible / insoluble in water Ignore strong not poisonous Do not accept attracted to a magnet not attracted to a magnet brittle (breaks easily) poisonous soluble in water weak a good electrical conductor a poor electrical conductor

6 © UCLES 2015 0846/01/O/N/15 (e) 1 a good (electrical) conductor / flexible Ignore strong Do not accept insoluble in water attracted to a magnet not attracted to a magnet brittle (breaks easily) poisonous not poisonous soluble in water weak a poor electrical conductor Total 5 Question number 7 CPS00421 Part Mark Answer Further Information (a) 2 (surface) (number of) marbles (1) 5 2 (6) 3 2 5 correct = 2 marks 4 or 3 correct = 1 mark 1 or 2 correct = 0 marks Do not accept marbles written within the table, max 1 mark if everything else correct (b) 2 The surface with the most friction is surface 2. The smoothest surface is surface 3 because it takes 2 marbles to move the block. each correct sentence = 1 mark ecf from part a Accept least / lowest / less Total 4

7 © UCLES 2015 0846/01/O/N/15 Question number 8 CPS00435 Part Mark Answer Further Information (a) 2 number of batteries number of lamps brightness of lamps (1) (2) (normal) (2) (2) bright (1) (3) dim each correct answer = 1 mark (b) 1 Do not accept if there are gaps in the circuit the circuit must be complete cell can be between the lamps as long as all in a complete circle Accept a switch as long as it is closed Ignore lines through the cell and lamps e.g. = 1 mark Total 3

8 © UCLES 2015 0846/01/O/N/15 Question number 9 CPS00306 Part Mark Answer Further Information (a) 1 1 The skull protects the brain. The ribcage protects the lungs. Accept cranium for skull Accept ribs for ribcage each correct answer = 1 mark (b) 1 it contracts / gets shorter Accept it gets fatter/ bigger Total 3 Question number 10 CPS00398 Part Mark Answer Further Information (a) 2 4 correctly circled = 2 marks 2 or 3 correctly circled = 1 mark 1 correctly circled = 0 marks all 5 circled = 1 mark 2 or 3 correctly circled and 1 incorrectly circled = 0 marks Accept any indication of the correct answer (b) 1 (idea of) run faster Accept accelerate / increase speed / increases velocity Ignore apply more force Total 3 roller-coaster sliding down the slope pedalling a bicycle up a hillwind turbine turningten-pin bowls lined up hot air balloon moving through the air

9 © UCLES 2015 0846/01/O/N/15 Question number 11 CPS00240 Part Mark Answer Further Information (a) 1 more than one answer circled = 0 marks Accept any indication of the correct answer (b) 1 thermometer Total 2 Question number 12 CPS00431 Part Mark Answer Further Information (a) 1 more than one answer circled = 0 marks Accept any indication of the correct answer (b) 1 more than one answer circled = 0 marks Accept any indication of the correct answer (c) 1 more than one answer circled = 0 marks Accept any indication of the correct answer Total 3 the object is opaque the object is transparent the object is transparent and opaque decreases increases stays the same decreases increases stays the same

10 © UCLES 2015 0846/01/O/N/15 Question number 13 CPS00368 Part Mark Answer Further Information 2 reason positive? (tick ) negative? (tick ) creates jobs  removes trees  fills in a pond  3 correct = 2 marks 1 or 2 correct = 1 mark if there is more than one tick for each row, then that row is incorrect Total 2 Question number 14 CPS00255 Part Mark Answer Further Information (a) 1 stopwatch / stop clock / timer Accept chronometer Do not accept clock / watch (b) 1 100 (cm 3) Total 2 Question number 15 CPS00354 Part Mark Answer Further Information (a) 1 carpel nectary petal sepal stigma both required for one mark if there are one, three or more circled = 0 marks Accept any indication of the correct answer (b) 1 seed(s) Accept zygote / embryo Ignore baby Total 2

11 © UCLES 2015 0846/01/O/N/15 Question number 16 CPS00109_A Part Mark Answer Further Information (a) 2 (A) C F (E) B D C F in correct order / place = 1 mark B D in correct order / place = 1 mark (b) 1 sand (c) 2 B evaporation = 1 mark F filtration = 1 mark if more than one line drawn from B = 0 marks for B if more than one line drawn from F = 0 marks for F Total 5 step process condensation dissolution evaporation filtration heat B F

12 © UCLES 2015 0846/01/O/N/15 BLANK