NCERT Solutions for Class 9 Science Unit 1
Matter in Our Surroundings Class 9
Unit 1 Matter in Our Surroundings Exercise Solutions
Anything that has both mass and volume is called matter. For example - me, you, chair, table, computer, mouse, keyboard, dog, cat, cow, ram, pen, pencil, tree, plant, building, stone, brick, mountain, river, etc.
Early Indian philosopher categorized matter in five types and called them panch-tatwa (Five-elements) - Vayu (Air), Jal (Water), Agni (Fire), Prithvi (Earth) and Aakash (Sky).
According to science matters are divided according to their physical and chemical properties.
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