The given materials can be differentiated on the basis of lustre, hardness, softness, roughness or smoothness.
Lustre | Hardness | Softness | Roughness | Smoothness | |
Chalk | ✔ | ✔ | |||
Iron nail | ✔ | ✔ | ✔ | ||
Wood | ✔ | ✔ | |||
Aluminium | ✔ | ✔ | ✔ | ||
Candle | ✔ | ✔ | ✔ | ||
Cotton | ✔ | ✔ |
The given materials can be differentiated on the basis of lustre, hardness, softness, roughness or smoothness.
Lustre | Hardness | Softness | Roughness | Smoothness | |
Chalk | ✔ | ✔ | |||
Iron nail | ✔ | ✔ | ✔ | ||
Wood | ✔ | ✔ | |||
Aluminium | ✔ | ✔ | ✔ | ||
Candle | ✔ | ✔ | ✔ | ||
Cotton | ✔ | ✔ |
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