Gr 6 NST (English) June 2023 Possible Answers hlayiso.com

Downloaded from hlayiso.com PROVINCIAL EXAMINATION JUNE 2023 GRADE 6 MARKING GUIDELINES NATURAL SCIENCES AND TECHNOLOGY 7 pages

Downloaded from hlayiso.com MARKING GUIDELINES NATURAL SCIENCES AND TECHNOLOGY GRADE 6 ASSESSMENT FRAMEWORK SECTION A MARKS QUESTION 1: MULTIPLE-CHOICE QUESTIONS 5 QUESTION 2: MATCHING ITEMS 5 QUESTION 3: TRUE AND FALSE 5 QUESTION 4: DIAGRAM AND LABELLING 5 QUESTION 5: ONE WORD/SCIENTIFIC TERMS 10 QUESTION 6: NAME/DEFINE/LIST 30 SECTION B MARKS QUESTION 7: CASE STUDY/EXPLAIN/PREDICT/GIVE AN EXAMPLE 5 QUESTION 8: USE OF KNOWLEDGE/ARRANGE 5 QUESTION 9: COMPARE/EXPLAIN/ILLUSTRATE 7 QUESTION 10: DIFFERENTIATE 4 21 SECTION C MARKS QUESTION 11: EXPLAIN/SUGGESTION 3 QUESTION 12: DISCUSS/SUGGEST A REASON 4 QUESTION 13: DISCUSS 2 9 TOTAL 60 2

Downloaded from hlayiso.com MARKING GUIDELINES NATURAL SCIENCES AND TECHNOLOGY GRADE 6 SECTION A QUESTION 1: MULTIPLE-CHOICE QUESTIONS MARKS 1.1 A 1 1.2 A 1 1.3 D 1 1.4 B 1 1.5 C 1 [5] QUESTION 2: MATCHING ITEMS 2.1 F 1 2.2 A 1 2.3 E 1 2.4 B 1 2.5 C 1 [5] QUESTION 3: TRUE AND FALSE 3.1 True  1 3.2 True  1 3.3 True  1 3.4 False  1 3.5 False  1 [5] 3

Downloaded from hlayiso.com MARKING GUIDELINES NATURAL SCIENCES AND TECHNOLOGY GRADE 6 QUESTION 4: DIAGRAM AND LABELLING MARKS 4.1 Beaker  1 4.2 Sand and water mixture  1 4.3 Filter paper  1 4.4 Funnel  1 4.5 Purified water  1 [5] QUESTION 5: ONE WORD 5.1 Solution  1 5.2 Solute  1 5.3 Solvent  1 5.4 Insoluble  1 5.5 Saturated solution  1 [5] QUESTION 6: INVESTIGATION 6.1 Tea leaves  1 6.2 Hot water/water  1 6.3 A substance that cannot dissolve.  1 6.4 sieving/filtering/hand sorting/settling and decanting (Any 2)  2 [5] TOTAL SECTION A: 30 4

Downloaded from hlayiso.com MARKING GUIDELINES NATURAL SCIENCES AND TECHNOLOGY GRADE 6 SECTION B QUESTION 7: CASE STUDY MARKS 7.1 Start a habit of eating a healthy breakfast. Eat balanced meals rather than junk food. Drink water rather than cold drinks. Be more active, e.g. walk around the block or participate in a sport at school. ( Two marks for any suitable answer) 2 7.2 Thomas will be overweight/suffer from obesity  and he can suffer from different diseases because of his bad diet.  (Two marks for any suitable answer) 2 7.3 Diabetes/Constipation/Tooth decay/High blood pressure/Eating disorders  (Any one) 1 [5] QUESTION 8: ARRANGE IN CORRECT ORDER Step 1 – C  1 Step 2 – A  1 Step 3 – B  1 Step 4 – E  1 Step 5 – D  1 [5] QUESTION 9: COMPARING PARTICLES 9.1 Solid – Particles are packed close together/regular pattern.  Liquid – Particles are a little more spaced out. Particles can ‘pour’ i.e. can move past each other.  Gas – Particles are far apart – not a regular pattern.  3 9.2 You can smell food cooking in another room, since the steam rising from the food is a gas  that is spreading in the air around you because it has a lot of heat energy from the cooking process.  2 9.3 Gas  1 9.4  (particles should be drawn far apart) 1 [7] 5

Downloaded from hlayiso.com MARKING GUIDELINES NATURAL SCIENCES AND TECHNOLOGY GRADE 6 QUESTION 10: COMPARING AND DIFFERENTIATING MARKS 10.1 Melting: Substances melt when heat is added.  Dissolving: When the particles of one substance spread between the particles of another substance.  2 10.2 Mixtures – When two substances are put together and can easily be separated then a mixture is formed.  Solutions – When a substance dissolves into another substance then a solution is formed.  2 [4] TOTAL SECTION B: 21 6

Downloaded from hlayiso.com MARKING GUIDELINES NATURAL SCIENCES AND TECHNOLOGY GRADE 6 SECTION C QUESTION 11: EXPLAIN/SUGGEST MARKS 11.1 Carbohydrates provide energy for the body.  1 11.2 Additives are added to improve colour/flavour and to preserve the food.  1 11.3 It can make children hyperactive./Some children are allergic to these chemicals.  1 [3] QUESTION 12: PROVIDE REASONS 12.1 (a) Can be caused by insoluble substances such as oil and plastic.  (b) Can be caused by soluble substances such as soaps and fertilisers.  (c) Can be caused by germs from the toilet waste.  3 12.2 People, plants and animals need clean water to survive./Animals such as fish, need clean water as a habitat.  (Any suitable answer.) 1 [4] QUESTION 13: EXPLAIN Hotter temperatures have more energy  so particles collide into each other much quicker.  2 [2] TOTAL SECTION C: 9 TOTAL: 60 7