Notes Class 9 Science Chapter 1 Matter in Our Surroundings
Notes For All Chapters Science Class 9 CBSE 1. Introduction Everything in the universe is made of matter. Matter: Anything that has mass and occupies space (volume). Examples: Air, water, food, stones, clouds, plants, animals, etc. Early Indian philosophers classified matter into five elements (Panch Tatva): Air, Earth, Fire, Sky, and Water. Modern classification: Based […]