Exam - Stage 4 Name: 1. What is the difference between an inductive and deductive investigation? Inductive: Deductive: (2 marks) 2. Identify which of the following is an important safety rule in science. A When smelling chemicals, place your nose carefully over the container. B Dispose of all materials in the rubbish bin. C When reading the volume of a liquid, always read the bottom of the meniscus. D Point test tubes away from your eyes and away from your fellow students. (1 mark) 3. Some important steps in using a Bunsen burner are listed below but the sequence is incorrect. 1. Light a match and hold it over the barrel. 2. Adjust the flame by moving the collar until the airhole is open. 3. Connect the rubber hose to the gas tap. 4. Turn on the gas tap and a yellow flame will appear. 5. Close the airhole of the Bunsen burner collar. The correct sequence is A 3, 5, 4, 1, 2. B 3, 5, 1, 4, 2. C 5, 3, 4, 1, 2. D 1, 3, 5, 4, 2. (1 mark) 4. Equipment used for measuring the volume of liquids includes A - conical flask, beaker, measuring cylinder. B - measuring cylinder, crucible, beaker. C – watch glass, filter funnel, conical flask. D - evaporating basin, test tube, beaker. (1 mark) 5. A thermometer scale is shown below. The temperature indicated is A 26.0 °C. B 24.4 °C. C 24.2 °C. D 24.5 °C. (1 mark) 6. Four students each measured the temperature in the same classroom using a thermometer. Their results were: (a) Construct a bar graph of these results. (b) Propose some possible reasons for the differences between measurements. Cells Quiz 1. To view tiny living things that are too small to see with the naked eye you would use a __________________ 2. Which of the following is smallest? (Circle the correct answer) A – Animal Cell B – Plant Cell C – Virus D – Bacteria 3. Which word is used to describe living things that are made up of only one cell? (Circle the correct answer) A – Monocellular B – Singucellular C – Unicellular D – Multicellular 4. Which of the following is a function of the cell membrane? A – Controlling the entry and exit of materials B – Storing water C – Supporting the cell 5. Which organelles are found in only plant cells? A – Chloroplasts B – Mitochondria C – Nucleus 6. Is the following cell and animal or plant cell? (Record your answer next to the diagram) 7. Is the following an animal or plant cell? (Record your answer next to the diagram)