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NCERT Solutions for Class 8 Science Chapter 3: Synthetic Fibres and Plastic

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In this chapter, we will learn about man-made or synthetic fibres. We will discuss different types of synthetic fibres and their properties, their usage and their characteristics. The chapter gives special emphasis on plastics. We would read about the usage of plastics and their feasibility in everyday life use. We would also discuss the effects that plastic has on the environment. The chapter concludes by explaining how to curb the harmful effects of plastics and the 5 R’s principle.

  • Man-made fibres are called synthetic fibres.
  • The formation of synthetic fibre is made up of small units.
  • These units combined to form polymers.
  • There are different types of synthetic fibres, namely rayon, nylon, polyester, acrylic, etc.
  • All these fibres have different properties, textures, and different chemical formations.
  • They are also used for different purposes, as specified in the chapter.
  • The chapter also discusses the characteristics of synthetic fibres and their respective costs.
  • Plastics are also polymers.
  • There are different types of plastics according to their arrangements.
  • We also learn about thermoplastics and thermosetting plastics in this chapter.
  • Plastics' durable and flexible nature makes it a very attractive material for the production of various products.
  • The chapter goes on to illustrate the various characteristics of plastic.
  • The chapter concludes by telling us about the environmental concerns associated with plastics.
  • Plastics are non-biodegradable, which makes their disposal very difficult.
  • We also learn about the 5 R’s principle – reduce, reuse, recycle, recover and refuse.

 

 

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Also See    
NCERT Solutions for Class 8 Science Chapter 1:Crop Production and Management NCERT Solutions for Class 8 Science Chapter 2: Microorganisms - Friend and Foe NCERT Solutions for Class 8 Science Chapter 4: Materials - Metals and Non-Metals
NCERT Solutions for Class 8 Science Chapter 5: Coal and Petroleum NCERT Solutions for Class 8 Science Chapter 6: Combustion and Flame NCERT Solutions for Class 8 Science Chapter 7: Conservation of Plants and Animals
NCERT Solutions for Class 8 Science Chapter 8: Cell – Structure and Functions NCERT Solutions for Class 8 Science Chapter 9: Reproduction in Animals NCERT Solutions for Class 8 Science Chapter 10: Reaching the Age of Adolescence
NCERT Solutions for Class 8 Science Chapter 11: Force and Pressure NCERT Solutions for Class 8 Science Chapter 12: Friction NCERT Solutions for Class 8 Science Chapter 13: Sound
NCERT Solutions for Class 8 Science Chapter 14: Chemical Effects of Electric Current NCERT Solutions for Class 8 Science Chapter 15: Some Natural Phenomena NCERT Solutions for Class 8 Science Chapter 16: Light
NCERT Solutions for Class 8 Science Chapter 17: Stars and the Solar System NCERT Solutions for Class 8 Science Chapter 18: Pollution of Air and Water  

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