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  • 19 August 2018

    NCERT STD 6 SCIENCE CHAPTER 4 ONLINE MCQ QUIZ 25 MARKS

    Solid Liquid & Gas

    solid liquid and gas
    Fig:States of Matter
    Solid: Solid has definite shape and definite volume. Examples: Stones, wood, plastic, common salt, steel, ice, glass, etc.
    Liquid: Liquid has indefinite shape but definite volume. Examples: Water, milk, oil, etc.
    Gas: Gas has indefinite shape and indefinite volume. Examples: Oxygen, nitrogen, carbon dioxide, etc.

    Other Criteria For Sorting Materials:

    https://i.pinimg.com/originals/56/59/1d/56591d11fd2d556f61e75d9d116a6623.jpg

    Appearance: Different materials look different from each other. The appearance depends on colour, hardness, texture, and lustre.
    Hardness: hardness is another property of materials. Some materials are very hard while some are very soft.
    Hard: Material which are difficult to compress are called hard, e.g. diamond, stone, wood, steel, etc. Diamond is the hardest natural substance.
    Soft: Materials which can be compressed easily are called soft, e.g. chalk, cotton, rubber, etc.
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