Materials: Metals and Non-Metals Definition, Types, Examples & Uses

Materials: Metals and Non-Metals

Subject: General Science

Book: NCERT Science Class 8

Materials are classified into metals and non-metals based on their properties.
- **Metals**:
- Good conductors of heat and electricity.
- Malleable (can be beaten into sheets) and ductile (can be drawn into wires).
- Example: Iron, Copper, Aluminium.
- **Non-Metals**:
- Brittle, poor conductors.
- Example: Sulfur, Carbon.
- **Uses**:
- Metals are used in making vehicles, bridges.
- Non-metals like oxygen are used in respiration.

**Possible Exam Questions:**
1. Compare the properties of metals and non-metals.
2. Why is copper used in electrical wiring?
3. How do metals react with water, acids, and oxygen?
4. What are the industrial uses of non-metals?
5. Discuss the role of metals in human health.