Classification of matter


 
 
Concept Explanation
 

Classification of matter

Classification of matter: Anything that we can see or touch is called an object. All objects differ in shape, size, colour and other aspects also. Grouping different objects on the basis of certain similarities and dissimilarities is called classification. For example : all kind sof toiletries are placed together at one place.These are further sorted out and grouped.For exmple : toothpastes are placed together at one place and soaps at another.

Importance of classification: Classification has the following advantages:

  • 1.    It helps in systematic study of objects.
  • 2.    It helps in identifying and locating things.
  • 3.    It helps to study the properties of objects of one category and also observe pattern in these properties.
  • Sample Questions
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    Question : 1

    The materials are grouped into various categories on the basis of

    • I.  similarities and differences in their properties.
    • II.  nature, size, shape and colour.
    • III.  solubility, use, transparency and hardness.

    Choose the correct option

    Right Option : D
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    Question : 2

    As of the 1990s, scientists have proved the existence of how many states of matter?

    Right Option : D
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    Explanation
    Question : 3

    Find odd one out.

    Right Option : D
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    Explanation
     
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