Download [PDF] April 2020 CAIE P1 Mark Schemes 0846 Science Cambridge Primary Checkpoint

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This document has 12 pages. Blank pages are indicated. 05_084 6_01/5RP ©UCLES 2020 [Turn over Cambridge Primary Checkpoint SCIENCE 0846/01 Paper 1 April 2020 MARK SCHEME Maximum Mark: 50 Published This mark scheme is published as an aid to teachers and learners, to indicate the requirements of the examination. However, we have not been able to adjust it to reflect the full range of answers that would have been seen as a part of the normal moderation and marking process, and it does not necessarily contain all the possible alternatives that might have arisen. Cambridge will not enter into discussions about the mark scheme.

0846/01 Checkpoint Primary – Mark Scheme April 2020 PUBLISHED © UCLES 2020 Page 2 of 12 General guidelines on marking Many descriptive answers can be expressed in a variety of ways. Professional judgement can be used in these cases, providing it matches the marking points and further information in the mark scheme. Answers may have words spelt incorrectly. Credit is normally given for phonetically correct answers, unless the word has a scientifically different meaning. For example, where the answer should be antennae, credit will be given for antena but not for anthen (too close to anther). Only the science is being assessed, so answers do not need to be grammatically correct. Unless specified all marking points are independent. Annotations and abbreviations / OR alternate responses for the same m arking point ( ) brackets the words or units in brackets do not need to be stated, for example, (recycles or releases or provides) minerals = minerals scores the mark 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. Full marks can still be achieved even with answers that are ignored. Note provides extra information when necessary

0846/01 Checkpoint Primary – Mark Scheme April 2020 PUBLISHED © UCLES 2020 Page 3 of 12 Question Answer Mar ks Further Information 1 kidney brain 2 each correct answer = 1 mark Question Answer Marks Further Information 2 mixture method of separating copper powder and steel powder magnetic attraction / magnet copper powder and zinc lumps sieving sand and water filtration 3 each correct answer = 1 mark Accept picking out with tweezes or forceps Accept evaporation Question Answer Marks Further Information 3 He uses a force to push air into the balloon. The balloon changes shape . 2 each correct sentence = 1 mark Accept He uses a push to force air into the balloon.

0846/01 Checkpoint Primary – Mark Scheme April 2020 PUBLISHED © UCLES 2020 Page 4 of 12 Question Answer Marks Further Information 4 5 each correct link = 1 mark if there are two lines from the same material to a different description = 0 marks for that material Question Answer Marks Further Information 5 Hoop A is a model of the orbit . Ball B is a model of the Earth . Ball C is a model of the Sun . 2 three correct = 2 marks two correct = 1 mark one correct = 0 marks Accept Moon for ball B if ball C is the Earth Accept Earth for ball C if ball B is the moon

0846/01 Checkpoint Primary – Mark Scheme April 2020 PUBLISHED © UCLES 2020 Page 5 of 12 Question Answer Marks Further Information 6(a) plant A 1 6(b) plant C 1 Question Answer Marks Further Information 7(a) statement true false sound travels at the same speed through all materials  volume of sound is measured in decibels  1 both correct = 1 mark 7(b) statement true false the strings of a violin vibrate to make sound  hitting a drum harder makes a softer sound  1 both correct = 1 mark

0846/01 Checkpoint Primary – Mark Scheme April 2020 PUBLISHED © UCLES 2020 Page 6 of 12 Question Answer Marks Further Information 8(a) ruler / measuring tape 1 8(b) balance / scales 1 Do not accept weighing scales 8(c) any one from width volume hardness / softness strength 1 Accept density Accept diameter Question Answer Marks Further Information 9(a) Animal shadows are made when light from a source is blocked . 1 Accept stopped / obstructed 9(b) This is because the material they are made from is opaque . 1 9(c) This is because the eye of the animal shape is transparen t. 1 Accept see -through

0846/01 Checkpoint Primary – Mark Scheme April 2020 PUBLISHED © UCLES 2020 Page 7 of 12 Question Answer Marks Further Information 10 feeding predator producer 3 each correct answer = 1 mark Question Answer Marks Further Information 11 1. kilogram / kg 2. newton / N 3. newton / N 4. gravity 3 Accept gram / g Do not accept n Do not accept n four correct = 3 marks two or three correct = 2 marks one correct = 1 mark Question Answer Marks Further Information 12 (a) any one from move into the shell have slime burrow into the ground find a co ol area / move into shade / away from sunlight 1 Accept live in water 12 (b) tentacles / feelers / eyes (on stalks) / antennae / senses / taste / smell 1

0846/01 Checkpoint Primary – Mark Scheme April 2020 PUBLISHED © UCLES 2020 Page 8 of 12 Question Answer Marks Further Information 13 (a) force time in s (gentle) 1.0 1.1 1.1 (medium) 1.0 1.1 1.2 (hard) 1.0 1.1 1.2 2 correct headings with unit = 1 mark all results correct = 1 mark Accept reverse order Units should not appear in the table, only in the heading. Ignore units not in the heading. 13 (b) the time will increase 1 Accept any time greater than 1.2 13 (c) Measure the height of Carlos. Measure the mass of Ahmed. Use a forcemeter to measure the force applied.  Use more hard pushes and less gentle pushes. 1

0846/01 Checkpoint Primary – Mark Scheme April 2020 PUBLISHED © UCLES 2020 Page 9 of 12 Question Answer Marks Further Informa tion 14(a) A is a battery and B is a lamp A is a cell and B is a switch A is a switch and B is a lamp A is a cell and B is a lamp A is a battery and B is a switch 1 more than one answer circled = 0 marks 14 (b) yes lamp lights up / lamp is on / circuit is complete 1 both correct = 1 mark 14 (c) insulator / so they do not get an (electric) shock 1 Ignore for protection 14 (d) (good) conductor 1

0846/01 Checkpoint Primary – Mark Scheme April 2020 PUBLISHED © UCLES 2020 Page 10 of 12 Question Answer Marks Further Information 15 (a) turns into a gas / changes from a liquid t o a vapour 1 Accept it evaporates Do not accept it forms steam 15 (b) 7 (°C) boiling point of water is 100 (°C) 2 Accept 107 ? 100 = 7 each correct answer = 1 mark , wherever written in the answer space Question Answer Marks Further Information 16( a) temperature / rate of stirring / volume of water / size of sugar cube / mass of suga r cube / type of sugar / length of stirring 1 Accept size or shape of beaker 16 (b) 25 32 2 each correct time = 1 mark 16 (c) No because the average value is less than 55 1 Accept no because only one value was at 55 / no because two values were well below 55 Accept yes because the other two were not correct 16 (d) to check results / evaluate results / to make results more reliable / to be able to work out an avera ge 1

0846/01 Checkpoint Primary – Mark Scheme April 2020 PUBLISHED © UCLES 2020 Page 11 of 12 Question Answer Marks Further Information 17 add a book  remove a book make the light brighter make the light dimmer move the light away from the books  move the light above the books 2 each corre ct tick = 1 mark three ticks, two correct = 1 mark three ticks, one correct = 0 marks four or more ticks = 0 marks

0846/01 Checkpoint Primary – Mark Scheme April 2020 PUBLISHED © UCLES 2020 Page 12 of 12 BLANK PAGE