Question

Q38. Why do we need to group materials? Give one reason.

Answer 1

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 of material saves our time , energy and makes our study easier .

Answer 2

Answer:

We want to organization substances in order that we are able to type out most of the exclusive substances and observe approximately their houses.

Explanation:

The grouping or the category of substances makes the observe less difficult and additionally saves our time and power. Periodic desk is an excellent instance of this grouping. Different factors are saved in rows and columns on the premise in their chemical houses and behaviour.

Grouping the gadgets enables us to set up them in a scientific manner. The gadgets whilst grouped are clean to handle. When grouped, it is straightforward to recognize the houses of an item clearly.

substances are grouped collectively on the premise of similarities and variations of their houses . substances are grouped collectively for comfort and to observe their houses. grouping of cloth saves our time , power and makes our observe less difficult .

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