Plastics are non bio … (a) Acrylic (b) Nylon (c) Polyester (d) Rayon Wool is a natural fibre obtained from the body of many animals. (a) Cotton (b) Nylon (c)Jute (d)Wool Answer. The fibres in this category may be classified into the following sub groups. Chapter 3. Synthetic Fibres & Plastics. A. Jute fibre is obtained from jute plant by the following steps: Retting: Jute fibre is obtained from the stalks of the jute plant. Explain why some fibres are called synthetic. Multiple Choice Questions (MCQs) Which of the following is not a man-made material? Cellulose is the basic component of: The cuticle. 2. (b) Nylon Is a synthetic fibre. 3. Synthetic Fibres and Plastics Class 8 Science Chapter 3 as per NCERT Book used in CBSE and other Schools. 2. Give examples which indicate that nylon fibres are very strong. Class 8 Synthetic Fibres Plastics Question answers. Which of the following properties should not be examined when comparing two synthetic fibers? a. Cellulose is a polymer that is made up of a large number of small glucose molecules joined one after the other. Students can get how to tackle different questions easily by solving the Extra Questions for Class 8 Science Question bank on a regular basis. 5._____is a kind of fibre that resembles wool. Question-answers (Fibre to Fabric) Multiple Choice Questions 1. Answer the following questions in short: 1. Which of the following is used for making gunny bags? Synthetic fibres do not absorb_____. Man made fibres are considered under two main headings. Explain why plastic containers are favoured for storing food. The natural fibres which are obtained from these animals are utilised for the production of wool. Students who are in Class 8 or preparing for any exam which is based on Class 8 Science can refer NCERT Science Book for their preparation. NCERT Exemplar Class 8 Science Chapter 3 Synthetic Fibres and Plastics. Explain the difference between thermoplastic and thermosetting plastics. Natural Polymer Fibres. 2. Polyester and nylon are the examples of synthetic fibre… Play this game to review Science. Here we have given NCERT Exemplar Class 8 Science Chapter 3 Synthetic Fibres and Plastics. Different types of synthetic fibres like, Rayon fibres, Nylon fibres, Polyester fibres and Acrylic fibres … After harvesting, the stalks of jute plants are bundled together and soaked in water for about 20 days. None of the answers are correct; there's no real difference between synthetic and natural fibers. In which […] NCERT Book for Class 8 Science Chapter 3 Synthetic Fibers and Plastics is available for reading or download on this page. 2. 1 Pick the synthetic fibre out of the following. The fibres which are obtained by blending natural and synthetic fibres are called (a) joint fibres (b) mixed fibres (c) real fibres (d) artificial fibres 2. The portion of the hair containing its scales is: Synthetic Fibres and Plastics Class 8 Extra Questions and Answers Science Chapter 3 PDF are solved by experts and will guide students in the right direction. The monomers involved in the synthesis of proteins are: Wood. Amino Acids. 4._____is called an artificial silk. Which of the following statements is/are false ? Natural fibres – fibre forming material is of the natural origin. 5. c. The small molecules that join together to form a polymer are … (a) Cotton (b) Jute (c) Wool (d) Polyster 3. b. 4. Polymers are micro sized molecules. 3._____plastics do not become soft on heating and cannot be reshaped. Digital NCERT Books Class 8 Science pdf are always handy to use when you do not … Explain why the following … The lesson covers the complete explanation of class 8 Chapter 3 Synthetic Fibres and Plastics.Topics covered are Introduction to fibres, kinds of fibres. C. Write 'T' for True or 'F' for False for the following sentences :-1. 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