Class 8 Science – Chapter 3
Synthetic Fibres and Plastics
Step 1: Introduction & Basic Concepts

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What are Fibres?

Fibres are thin, hair-like strands that are used to make fabrics. Examples: cotton, wool, silk, nylon.

Types of Fibres

• Natural Fibres – Obtained from plants or animals (cotton, wool, silk)
• Synthetic Fibres – Man-made fibres prepared from chemicals

What are Synthetic Fibres?

Synthetic fibres are fibres made by humans using chemical substances. These fibres are prepared from petrochemicals.

Examples of Synthetic Fibres

• Nylon
• Polyester
• Acrylic

Why Synthetic Fibres are Popular?

• Strong and durable
• Easy to wash and dry
• Wrinkle-resistant
• Less expensive

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⭐ Synthetic fibres are widely used in our daily life