Download [PDF] April 2016 CAIE P1 Mark Schemes 1113 Science Cambridge Lower Secondary Checkpoint

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[PDF] April 2016 CAIE P1 Mark Schemes 1113 Science Cambridge Lower Secondary Checkpoint.pdf | Plain Text

This document consists of 8 printed pages . IB16 05_1113_01/7RP © UCLES 2016 [Turn over Cambridge International Examinations Cambridge Secondary 1 Checkpoint SCIENCE 1113/01 Paper 1 April 2016 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 2016 1113/01/A/M/16 Question number 1 CSS00504 Part CF Skill Mark Answ er Further Information (a) 7Be2 A 2 cabbages (plants) slugs (toad) snakes rooks mark each pair of boxes independently two pairs correct = 2 marks one pair correct = 1 mark (b) 7Be2 A 1 5 (c) 9Be4 K 2 example e.g. bacteria / fungi / microorganisms / microbes why decays organic or waste matter / rots organic or waste matter / breaks down organic matter / breaks down waste (matter ) / makes compost / provides minerals / provides (plant) nutrients Total 5 Question number 2 CSS00270_A Part CF Skill Mark Answ er Further Information (a) (i) 7Ce1 A 1 igneous (ii) 7Ce1 A 1 magma cooled slowly / took longer for the magma to cool Accept reverse argument if specified (b) 7Ce 1 A 1 E more than one answer = 0 mark (c) 7Ce3 K 1 fossils Total 4

3 © UCLES 2016 1113/01/A/M/16 [Turn over Question number 3 CSS00411 Part CF Skill Mark Answ er Further Information (a) 7Pb2 K 1 orbit (b) 7Pb1 K 1 24 (hours) (c) 7Pb4 K 1 The Sun is a source of light . (d) 7Pb4 K 1 A planet is seen because light is reflected by its surface . Total 4 Question number 4 CSS00313 Part CF Skill Mark Answ er Further Information (a) 8Bh12 K 1 growth of body hair / pubic hair (b) (i) 8Bh13 K 1 ovary Accept ovaries (b) (ii) 8Bh13 K 1 produce eggs / release eggs Do not accept ovule (c) (i) 8Bh13 K 1 prepare for implantation The answer must refer to a fertilised egg, foetus , zygote or embryo (c) (ii) 8Bh13 K 1 released as a period / menstruation / released as blood / passes out th rough the vagina Total 5

4 © UCLES 2016 1113/01/A/M/16 Question number 5 CSS00445 Part CF Skill Mark Answ er Further Information (a) 7Ep2 8Pm3 E 1 Increasing the number of turns of wire around the iron rod will make the electromagnet stronger / the electromagnet pick up more objects . (b) 7Ep2 8Pm3 E 1 yes (no marks) use of two pieces of data to illustrate that she is correct / more turns picks up more paper clips If no then = 0 marks for question Answer must specifically refer to turns and number of paper clips (c) 8Ec4 8Pm3 E 1 (idea of) using a wider range of the number of turns / use 1, 3, 5, turns / use the same size paper clips / repeat each one / get an average value / use smaller paper clips Total 3 Question number 6 CSS00383 Part CF Skill Mark Answ er Furth er Information (a) 9Ec2 9Cc1 E 2 left hand column = 1 mark, minus sign ( –) must be present right hand column = 1 mark . change in temperature in °C endothermic or exothermic reaction (–4) endothermic (+4) exothermic –5 endothermic (b) 9Cc5 A 3 sodium chloride water carbon dioxide one mark for each correct answer answers can be in any order Total 5

5 © UCLES 2016 1113/01/A/M/16 [Turn over Question number 7 CSS00498 Part CF Skill Mark Answ er Further Information (a) (i) 8Ec1 7Bc1 E 1 1.24 seconds (a) (ii) 8Ec1 7Bc1 E 1 0.31 seconds (a) (iii) 9Ec4 7Bc1 E 1 no because Oliver takes longer or not sure because their times are very similar NOTE the mark is for the explanation. BUT No marks for Yes (b) (i) 8Ec4 7Bc1 E 2 anomal ous = not fitting the pattern 4th trial / 0.42 seconds one mark for each correct point (b) (ii) 9Eo1 7Bc1 E 1 do more repeats / more trials Total 6

6 © UCLES 2016 1113/01/A/M/16 Question number 8 CSS00379 Part CF Skill Mark Answ er Further Information (a) (i) 9Cp1 A 1 4 (ii) 9Cp1 A 1 5 (b) 8Cp2 K 1 Be Do not accept BE or be (c) 9Cp2 A 2 Any two from different number of protons / less protons / fewer protons / has 3 protons / lower atomic number / atomic number is 3 smaller number of particles in nucleus / smalle r mass number / smaller nucleon number / 7 particles in nucleus / mass or nucleon number is 7 different number of electrons / less electrons / fewer electrons / 3 electrons / lit hium is 2,1 / different electronic structure (d) 9Cp1 K 1 Darwin Galile o Newton Rutherford two answers = 0 marks Total 6

7 © UCLES 2016 1113/01/A/M/16 [Turn over Question number 9 CSS00427 Part CF Skill Mark Answ er Further Information (a) 8Pl3 A 1 C (b) 8Pl3 K 1 i is always larger than r i is always the same as r r is always larger than i r is sometimes larger than i more than one answer circled = 0 marks Total 2 Question number 10 CSS00178_A Part CF Skill Mark Answ er Further Information 9Pf1 A 3 force/ area or 10/2 5 N/cm 2 or N per cm 2 correct numerical answer with incorrect units = 2 marks Total 3

8 © UCLES 2016 1113/01/A/M/16 Question number 11 CSS00350 Part CF Skill Mark Answ er Further Information (a) 7Bv3 A 2 Any two from 6 legs 3 body sections / has head, thorax and abdomen wings (1 pair of ) antennae must be visible features (b) (i) 9Bv4 K 1 (Charles) Darwin (ii) 9Bv4 K 2 C and D = 1 mark B = 1 mark C D (A) B Total 5 Question number 12 CSS00423 Part CF Skill Mark Answ er Further Information (a) 8Ps1 K 1 The loud speaker vibrates . (b) 8Ps1 K 1 When air p articles are close together it is called a compression . Total 2