CBSE Class 8 Science – Synthetic Fibres and Plastics

Chapter Overview

This chapter explores synthetic fibres and plastics, which are man-made materials produced through chemical processes. It covers the development, manufacturing, and diverse applications of these materials, as well as their advantages, disadvantages, and environmental impacts.

Important Keywords

• Synthetic Fibres: Man-made fibres produced from chemical compounds.
• Plastics: Synthetic materials made from polymers that can be molded into various shapes.
• Polymerization: A chemical process that creates polymers by bonding monomers.
• Thermoplastics: Plastics that soften on heating and harden on cooling.
• Thermosetting Plastics: Plastics that set permanently after being heated.
• Polyester: A common synthetic fibre used in fabrics.
• Nylon: A synthetic polymer used in fibres and plastics.
• Environmental Impact: The effect of production, use, and disposal of synthetic materials on the environment.