GENERAL EDUCATION AND TRAINING
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1 GENERAL EDUCATION AND TRAINING NATURAL SCIENCES GRADE 9 JUNE 2015 MARKS: 80 DURATION: 2 HOURS
2 INSTRUCTIONS: 1. The question paper consists of 9 pages including the cover page. 2. Answer ALL the questions. 3. Number the answers correctly following the numbering system used in this question paper. 4. Use the attached Periodic Table of elements to answer some of the questions. 5. Write neatly and legibly. Page 2 of 9 NS Gr9 QP June 2015
3 SECTION A QUESTION 1 Four possible options are given for each question but only ONE is correct. Choose the correct answer by ONLY writing the letter; A, B, C or D next to the number of the question; e.g C 1.1 An onion cell under a microscope will not contain a because photosynthesis does not take part in that part of the plant. A. cell wall B. chloroplast C. cytoplasm D. mitochondrion (2) 1.2 The part of the cell that acts like the brain of the cell and also holds a genetic code of the organism is the A. cell membrane B. nucleus C. chloroplast D. ribosome (2) 1.3 Organisms such as bacteria consist of a single cell and are known as A. multicellular B. unicellular C. microcellular D. macro cellular (2) 1.4 The cell membrane or plasma membrane is a thin semipermeable layer of protein and fat that surrounds the cell and A. it controls what enters and leaves the cell B. it allows everything to enter and leave the cell C. it separates the contents of the cell Page 3 of 9 NS Gr9 QP June 2015
4 D. it keeps a balance within a cell (2) 1.5 Cells combine to form tissues, tissues combine to form an organ, organs work together to form a system and systems make up A. a unit B. an organelle C. a process D. an organism. (2) QUESTION 2 Write TRUE OR FALSE to answer the following questions. (10) 2.1 Respiration takes place in the mitochondrion. (1) 2.2 Capillaries carry blood to and from the body cells. (1) 2.3 An embryo is an organism in its early stages of development, before it has reached a distinctively recognizable form. (1) 2.4 When an acid reacts with oxygen the products are generally a salt + water. (1) 2.5 Rusting is a reaction in which iron reacts with any metal and water at surface of the iron. (1) (5) Page 4 of 9 NS Gr9 QP June 2015
5 SECTION B LIFE AND LIVING QUESTION 3 Study the diagram and answer the questions that follow. 3.1 Label the parts numbered A, B and C in the diagram. (3) 3.2 In which part does absorption take place? (1) 3.3 Mention ONE division of the small intestines? (1) 3.4 Discuss the difference between mechanical and chemical digestion. (2) 3.5 What is anorexia nervosa? (2) (9) QUESTION Answer the following on systems What are the TWO organs involved in the circulatory system? (2) Mention TWO substances transported by the circulatory system. (2) Oxygenated blood returns to the heart through the pulmonary vein / pulmonary artery.( Choose the correct answer) (1) Veins have valves that allow blood to flow in the correct direction. What happens if the blood starts to flow in the wrong direction? (2) Where does the diffusion of gases (oxygen and carbon dioxide) take place? (1) Page 5 of 9 NS Gr9 QP June 2015
6 Mention at least TWO important functions of the skeleton. (2) Discuss how movement takes place in human beings. (2) What causes rickets? (2) 4.3 What are the wastes excreted by the following organs? Skin (1) Lungs (1) QUESTION 5 (16) 5.1 What is the importance of the nervous system? (2) 5.2 Mention TWO human sense organs? (2) 5.3 What is the period of gestation in human beings? (1) 5.4 What is the difference between a baby and a foetus? (2) 5.5 Mention ONE use of contraceptives? (2) SECTION C QUESTION Balance the following equations KClO 3 KCl + O 2 (2) NaCl + F 2 NaF + Cl 2 (2) 6.2 Use the table to answer the questions that follow. (9) Compound Name Number of oxygen atoms O (1) (1) 2CaCO (2) (2) Page 6 of 9 NS Gr9 QP June 2015
7 6.3 Sulfur dioxide reacts with oxygen according to the following equation In what group is sulphur on the Periodic Table? (1) What are the reactants of the reaction? (2) Is the reaction above balanced? Explain your answer. (2) QUESTION 7 Use the following diagram to answer the following questions. (15) 7.1 What is the ph for bicarbonate of soda solution? (1) 7.2 Which fruit juice is a base? (2) 7.3 Is liquid drain cleaner a strong or a weak base? (2) 7.5 Which substance has the lowest ph? (1) 7.6 What does ph stand for? (2) (8) Page 7 of 9 NS Gr9 QP June 2015
8 QUESTION 8 The shown diagram shows how hydrogen can be prepared in the laboratory using dilute hydrochloric acid and zinc granules. 8.1 Why is hydrogen collected by downward displacement? (2) 8.2 Give the general word equation for this chemical reaction. (4) 8.3 Complete the reaction: HCl + Zn + (2) (8) GRAND TOTAL 80 Page 8 of 9 NS Gr9 QP June 2015
9 ANNEXURE 1 Page 9 of 9 NS Gr9 QP June 2015
10 ALGEMENE ONDERWYS EN OPLEIDING NATUURWETENSKAPPE GRAAD 9 MEMORANDUM JUNIE 2015 PUNTE: 80 TYDSDUUR: 2 UUR
11 AFDELING A VRAAG B (2) 1.2 B (2) 1.3 B (2) 1.4 A (2) 1.5 D (2) (10) VRAAG Waar (1) 2.2 Waar (1) 2.3 Waar (1) 2.4 Onwaar (1) 2.5 Onwaar (1) (5) AFDELING B VRAAG A Lewer B Slukderm (esophagus) C Maag (3) 3.2 In die dunderm (1) 3.3 Jejunum Duodenum Ileum (Enige een) (1) 3.4 Meganiese vertering is die fisiese afbreek van voedsel teenoor chemiese vertering en die afbreek van voedsel deur die gebruik van spysverteringsappe (2) 3.5 Eet afwyking wat eindig in minder eet of self-onthouding van voedsel. (2) (9) QUESTION 4 Bladsy 2 van 5 Gr 9 Junie 2015 NS Memo
12 Hart en longe. (2) Glukose Voedingswaarde water afval produkte suurstof en koolstofdioksied (Enige twee) (2) Longslagaar. (1) Die kleppe sal sluit en nie die bloed in die regte rigting laat vloei nie. (2) In die alveolus (1) Om die interne organe te beskerm Om beweging toe te laat Om vorm aan die liggaam te gee Om minerale te berg (Enige relevante twee) (2) Die spier trek saam en ontspan om beweging toe te laat. Die spiere reageer in teenoorgestelde rigtings, wanneer een ontspan, trek die ander een saam. (2) Tekort aan Vitamiene D en kalsium (2) Vel - sweet (1) Longe - Koolstof dioksied en water (Gee n punt vir enige een van die twee) (1) (16) Bladsy 3 van 5 Gr 9 Junie 2015 NS Memo
13 VRAAG Om die liggaam in kennis te stel wat in die liggaam gebeur. (2) Om die liggaam in staat te stel om op impulse te reageer. (Enige een) 5.2 Oë Neus Vel Ore Tong (Enige twee) (2) 5.3 Nege maande (1) 5.4 n Fetus is n herkenbare dier (annamalia) voor geboorte en n baba is n dier (annamalia) (1) 5.5 Om swangerskap te voorkom Om SOS e te voorkom (Enige een). (2) (9) VRAAG Balanseer die volgende verbindings KClO 3 2KCl + 3O 2 (2) NaCl + F 2 2NaF + Cl 2 (2) Suurstof (1) Twee (2) (1) Kalsium karbonate (2) Ses (6) (2) Groep 16 of 6 (1) Swaeldioksied en suurstof (2) Ja, dit het n gelyke getal atome links en regs. (2) (15) Bladsy 4 van 5 Gr 9 Junie 2015 NS Memo
14 VRAAG ph van 9 (1) 7.2 Geen (2) 7.3 Sterk basis (2) 7.5 Battery suur (1) 7.6 krag van Waterstof (2) (8) VRAAG Dit is ligter as lug en kan maklik weggedra word. (2) 8.2 Suur + Metaal Sout + Waterstof gas (4) 8.3 Voltooi die reaksie: HCl + Zn ZnCl 2 + H 2 (2) (8) GROOTTOTAAL 80 Bladsy 5 van 5 Gr 9 Junie 2015 NS Memo
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