Question
How do we classify materials based on their hardness? Explain. [2 MARKS]
Answer: Option A
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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.
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