Grade 6 Natural Sciences and Technology (English) June 2022 Question Paper hlayiso.com

Downloaded from hlayiso.com PROVINCIAL EXAMINATION JUNE 2022 GRADE 6 NATURAL SCIENCES AND TECHNOLOGY TIME: 1½ hours MARKS: 60 12 pages DISTRICT: SCHOOL NAME: NAME AND SURNAME: CLASS (e.g. 6A): BOY GIRL SECTIONS A B C TOTAL Questions 1 2 3 4 5 6&7 8&9 Mark Allocation 5 5 5 5 10 21 9 60 Learner’s Marks P.T.O.

Downloaded from hlayiso.com NATURAL SCIENCES AND TECHNOLOGY 2 GRADE 6 INSTRUCTIONS 1. Answer ALL the questions on this paper. 2. Read the instructions of each question carefully before answering. 3. Write neatly and legibly. STRANDS NATURAL SCIENCES MATTER AND MATERIALS TECHNOLOGY SYSTEMS AND CONTROL The question paper consists of SECTION A, SECTION B AND SECTION C SECTION A: LOW SECTION B: MIDDLE SECTION C: HIGH ORDER ORDER QUESTIONS/ ORDER QUESTIONS/ QUESTIONS/COGNITIVE COGNITIVE LEVEL 1 COGNITIVE LEVEL 2, 3 & 4 LEVEL 5 & 6 Q1: Phases of matter and Q6: Saturated solutions; Q8: Rate of dissolving mixtures Mixtures and solutions Q2: Solutions as special Q7: Rate of dissolving Q9: Wetlands mixtures Q3: Mixtures, Solutions as special mixtures Q4: State of matter, Mixtures, Rate of dissolving, Soluble and insoluble substances, Water pollution Q5: Solutions and Rate of Dissolving Total – 30 Total – 21 Total – 9 P.T.O.

Downloaded from hlayiso.com NATURAL SCIENCES AND TECHNOLOGY 3 GRADE 6 SECTION A QUESTION 1: MULTIPLE-CHOICE QUESTIONS Read each question carefully. Circle the correct answer, example 1.1.6 A . 1.1 Water vapour is an example of which state of matter? A Solid B Liquid C Gas D Liquid and gas (1) 1.2 Which of the following characteristics does NOT represent the arrangement of a SOLID particle? A The particles are arranged in a regular pattern. B The particles are far apart. C Spaces between the particles are very small. D The particles stay in a fixed pattern. (1) 1.3 What do we call the process of liquid water changing into ice? A Evaporation B Condensation C Melting D Freezing (1) 1.4 Which of the following is NOT a mixture of a SOLID and a SOLID? A Salt and sand B Oil and water C Tea leaves and sugar D Peanuts and beans (1) 1.5 Which method of separation is best to use to separate tea and tea leaves? A Hand sorting B Sieving C Filtering D Settling (1) [5] P.T.O.

Downloaded from hlayiso.com NATURAL SCIENCES AND TECHNOLOGY 4 GRADE 6 QUESTION 2: MATCHING ITEMS Match COLUMN A with COLUMN B by writing the correct letter in the answer table below. COLUMN A COLUMN B 2.1 Sugar A The liquid in which something is dissolved 2.2 Insoluble B When two or more substances are combined 2.3 Solvent C Something that cannot dissolve 2.4 Solvent mixture D Soluble 2.5 Saturated E When a dissolved substance changes into solid crystals again 2.6 Crystallisation F When a solution can no longer dissolve any more solute 2.1 2.2 2.3 2.4 2.5 2.6 D [5] QUESTION 3: TRUE AND FALSE Indicate whether the following sentences are TRUE or FALSE in the spaces provided. 3.1 Sand and water is a mixture of two solids. (1) 3.2 A sieve allows small particles to pass through but catches the bigger particles. (1) 3.3 Salt and sugar can be separated by hand sorting. (1) 3.4 Substances that dissolve in a liquid is called a solution. (1) 3.5 Sand and water is an example of a solution. (1) [5] P.T.O.

Downloaded from hlayiso.com NATURAL SCIENCES AND TECHNOLOGY 5 GRADE 6 QUESTION 4: STATE OF MATTER AND RATE OF DISSOLVING Provide the scientific name/term for each of the following statements in the spaces provided. STATEMENT ANSWER 4.1 The liquid in which a substance dissolves 4.2 How fast or slow something happens 4.3 To allow a substance mixed with a liquid to settle at the bottom 4.4 Anything that has mass and takes up space 4.5 Changing from a liquid to a gas (5) QUESTION 5: SOLUTIONS AND RATE OF DISSOLVING Below is a solution of copper sulphate and water. Use the picture to answer the following questions. A B C 5.1 Define the term solution. (2) 5.2 Label parts A, B and C A B C (3) P.T.O.

Downloaded from hlayiso.com NATURAL SCIENCES AND TECHNOLOGY 6 GRADE 6 5.3 Name the solute in the solution. (1) 5.4 Name the solvent in the solution. (1) 5.5 How would you separate the solution? (1) 5.6 There are three factors that affect the time it takes for a solute to dissolve in a solvent. State any TWO. 5.6.1 (1) 5.6.2 (1) [10] TOTAL SECTION A: 30 P.T.O.

Downloaded from hlayiso.com NATURAL SCIENCES AND TECHNOLOGY 7 GRADE 6 SECTION B: UNDERSTANDING AND APPLYING SCIENCE AND TECHNOLOGY QUESTION 6 6.1 Read the case study below and answer the following questions. Sipho wanted to investigate how long it took to reach a saturated solution with: 1. Salt 2. Chocolate 3. Flour 4. Sugar 5. Oil He planned to add a teaspoon at a time to a cup of water, stir the solution and then see whether he needed to add more solute. 6.1.1 How would he know when the solution is saturated? (1) 6.1.2 Sipho decided to heat the water of each beaker. Why do you think he did this? (1) 6.1.3 Which substances will not work for Sipho’s experiment? Indicate why it will not work. (1) 6.2 In the space below, illustrate and label a mixture of water and oil. (2) P.T.O.

Downloaded from hlayiso.com NATURAL SCIENCES AND TECHNOLOGY 8 GRADE 6 6.3 Differentiate between sieving and decanting. Sieving - (1) Decanting - (1) 6.4 Comparing mixtures Compare the mixtures of sugar and water, and oil and water by completing the table below. Mixtures Phases of matter Soluble or Is the mixture a (Solid, Liquid, Insoluble? solution? Gas) (Yes/No) Sugar ____________ (1) and and ____________ (1) ____________ (1) Water liquid Oil ____________ (1) and and ____________ (1) ____________ (1) Water ____________ (1) (7) [14] P.T.O.

Downloaded from hlayiso.com NATURAL SCIENCES AND TECHNOLOGY 9 GRADE 6 QUESTION 7: RATE OF DISSOLVING Grade 6 learners from Mzimhlophe Primary School conducted an experiment where they investigate the influence of stirring a salt and water solution on the rate of dissolving. They used two jars which contained 125 ml of water each. A teaspoon of salt was added to each jar. One jar will be stirred, while the other will not be stirred. Stirring rod Beaker Salt particles Solution with no stirring Solution with stirring 7.1 Predict would happen when a teaspoon of salt is added to each jar, and you stir only one of the solutions. (1) 7.2 Identify TWO factors which remained the same for both jars. 7.2.1 (1) 7.2.2 (1) 7.3 Identify ONE factor that was different in the experiment. (1) P.T.O.

Downloaded from hlayiso.com NATURAL SCIENCES AND TECHNOLOGY 10 GRADE 6 7.4 Study the table below which tells us about the rate of dissolving when a solution is stirred and not stirred. Answer the questions that follow. Without stirring Stirring the mixture the mixture Time taken to dissolve (seconds) 60 15 7.4.1 Use a pencil to construct a bar graph using the information from the table above. Use the grid below. (2) 60 50 Time (seconds) 40 30 20 10 0 Stirring Without Stirring Factor 7.4.2 What was the conclusion for this experiment? (1) [7] TOTAL SECTION B: 21 P.T.O.

Downloaded from hlayiso.com NATURAL SCIENCES AND TECHNOLOGY 11 GRADE 6 SECTION C: ANALYSING AND EVALUATING RATE OF DISSOLVING, AND WETLANDS QUESTION 8 Study the graph below which tells us about the rate of dissolving different substances at different times. Answer the questions that follow. Rate of Dissolving 400 350 Time in Seconds (s) 300 250 200 150 100 50 0 11 cup cupSugar sugar 11teaspoon Teaspoon fine Fine salt Salt 11teaspoon Teaspoonrough Roughsalt Salt 11 Panado Panado Tablet tablet Substances Substances 8.1 In your opinion, which substance dissolved the fastest? (1) 8.2 Give ONE reason why there is a big difference in the time taken to dissolve fine salt and rough salt. (1) 8.3 Considering how long the Panado tablet took to dissolve, explain what you could do to dissolve the Panado tablet faster. (2) 8.4 Why do you think the sugar took the longest to dissolve? (1) [5] P.T.O.

Downloaded from hlayiso.com QUESTION 9 9.1 Propose TWO reasons why you feel wetlands are important. (2) 9.2 Briefly discuss how wetlands are destroyed. (2) [4] TOTAL SECTION C: 9 TOTAL: 60 END