Question

State some properties on the basis of which materials can be grouped. Mention two
ways in which grouping of materials is useful to us.

Answer 1

Answer:

Explanation:Materials are grouped together on the basis of similarities and differences in their properties. Things are grouped together for convenience and to study their properties.

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Answer 2

Answer:

Objects are grouped on the basis of properties like lustre, hard/softness, transparency, solubility, floatation, attraction towards magnet, conduction of heat and conduction of electricity. Property - Lustre: Materials can be grouped as lustrous and non-lustrous on the basis of lustre/shine possessed by them.

Materials are grouped together on the basis of similarities and differences in their properties. Materials are grouped together for convenience and to study their properties. Grouping materials saves our time, energy and makes our work easier.

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