Question

How do we classify materials based on their hardness? Explain. [2 MARKS]

Answer 1

Classification: 1 Mark each

Materials can be classified into two based on their hardness - hard materials and soft materials.

Materials that can be compressed or scratched easily are called soft materials.
Example: Cotton, Sponge.
Materials that are difficult to compress are called hard.
Example: Iron and most of the other metals.