Topic Details (Notes format)

Synthetic Fibres and Plastics

Subject: General Science

Book: NCERT Science Class 8

Synthetic fibres are man-made fibres created from chemicals. Examples include **nylon, polyester, and acrylic**.
- **Types of Synthetic Fibres**:
- **Rayon**: Artificial silk, used in shirts and sarees.
- **Nylon**: Strong and elastic, used in ropes and seat belts.
- **Polyester**: Wrinkle-resistant, used in clothes.
- **Acrylic**: Warm, used in sweaters.
- **Plastics and Their Uses**:
- Plastics like polythene and PVC are used in packaging and pipes.
- **Environmental Issues**:
- Plastic pollution is harmful as plastics are **non-biodegradable**.
- Recycling and proper disposal are necessary.

**Possible Exam Questions:**
1. What are synthetic fibres? How do they differ from natural fibres?
2. Discuss the advantages and disadvantages of plastic use.
3. Why is nylon considered a strong synthetic fibre?
4. How does plastic pollution affect the environment?
5. What are biodegradable and non-biodegradable materials? Explain with examples.