g) Polyester is a natural fibre. Rayon is made from cellulose obtained from wood pulp. (ii) Synthetic fibres do not melt on heating. Synthetic Fibres : nylon, polyester. 7. (i) The fabric terry wool is obtained by mixing terylene and wool. True. True) (e) Weaving yarn makes a piece of fabric. D-opacity. (ii) Synthetic fibres: Nylon, polyester. True or False State whether the given statements are true or false. True or False: Polyester was the first synthetic fiber. Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute. Question 1 Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute. Also, write false statements in their correct form. 6. (b) Spinning is a process of making fibres. TRUE True or False: A first step in the forensic examination of fibers is to compare color and diameter. Check the below NCERT MCQ Questions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics with Answers Pdf free download. Answer ... State whether the following statements are True or False: Question 1. (iii) It is risky to wear synthetic clothes while working in the kitchen. (False) 3.Question. Answer: a) True b) False c) False d) True e) True f) False g) False. Q. Rayon synthesised for the first time in England. Answer. b) Spinning is a process of making fibres. Artificial silk is another name for silk. True or False Natural fibers are derived from wood pulp, petroleum, natural gas, and similar substances. True or False PLA fibers are similar to cotton in appearance. Soln: i) True ii) False- Synthetic fibres … 3. Polyester fibres are used for making hand knit sweaters. 5. 2. (a) True (b) False; The process of making yarn from fibres is called spinning. Question 2 State whether the following statements are true or false: a) Yarn is made from fibres. We have provided Synthetic Fibres and Plastics Class 8 Science MCQs Questions with Answers to help students understand the concept very well. False. State whether the following statements are true or false: (a) Yarn is made from fibres. True. Explanation: a)& b) Process of making yarn from fibres is called spinning. (a) Plant fibers are obtained from cotton and jute. Answer : (i) Natural fibres: Wool, silk, cotton, jute. IV. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. (c) False; Jute fibre is obtained from the stem of jute plant. (False) (g) Polyester is a natural fiber. True. Answer. f) Silk fibre is obtained from the stem of the plant. Question 2. Which of the following fibre is natural polymer: (a) rayon (b) cotton (c) polyester (d) polythene. 4.Question. Answer. Answer: Natural Fibres : wool, cotton, silk, jute. Nylon was made in 1931. 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