Pfs 102 R Ass 04

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1 PFC 102 R Assignment 04 Unique Assignment Number: 851007 2 Table of Contents Page no 1. QUESTION ONE 1.1 Describe what is meant by a scientific theory. 1.2 Explain with an example how we can accept that a scientific theory is a valid explanation of natural phenomena. 1.3 Explain why we should not teach speculative theories, such as the theory of evolution, as scientifically proven facts. 2. QUESTION TWO 2.1 Explain why children should learn natural sciences. 3. QUESTION THREE 3.1 Identify: 3.1.1 three scientific skills and 3.1.2 three scientific attitudes children should learn. 4. QUESTION FOUR 4.1 Scientific understanding can only develop if the learners engage in meaningful activities. Substantiate this statement. 4.2 Explain how scientific attitudes are best taught. 5. QUESTION FIVE 5.1 Explain why science lessons are ideal for fostering environmental awareness. 5.2 Identify one environmental problem in your area which can be meaningfully integrated into a primary school science lesson. 5.3 Practical lesson 6. SOURCES CONSULTED 3 3 3 3-4 4 4 4 4-5 5 5 5-9 10 3 1. QUESTION ONE 1.1 Scientific theories are not facts, but explanations or interpretations of empirical data. A scientific theory is a set of properly argued conclusions drawn from observed and / or quantified data. These conclusions are usually a matter of the most probable theory, based on the data available. Scientific theories are scientists “means of trying observed facts together, and the best theories are those which achieve this objective with the least number of inconsistencies”. (Gitt 1997:23). An example of a scientific theory is The Kinetic molecular theory (it is an explanation of the fact that substances expand or contract when heated or cooled). 1.2 A theory can be accepted as valid if it can be experimentally verified and / or applied technologically. For
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