Question

7. (A). Give any two reasons of classifying materials into different group.​

Answer 1

We classify the objects because it gives us the following advantages: 1 The classification of objects into groups make it easier to locate them and work with them. 2 If we know the properties of any one member of the group, we can get an idea of the properties of the other members of this group.

Answer 2

Answer:

1. Some materials are translucent.

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

Explanation:

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