042 Lecture 1: Class 9th Science Chpter 1 Matter In Our Surroundings notes 2023
Document Summary
Key concepts : [ *rating as per the significance of concept: particle nature of matter, states of matter, interchange in states of matter, evaporation & boiling, kelvin , celsius scale. Elementary idea of three physical states of matter . Conceptual levels of comprehension on the basis of feedback taken from the students. [ refer ncert text book activities 1. 1 to 1. 8 ] Anything that occupies space and has mass and is felt by senses is called matter. Matter is the form of five basic elements the panch tatva air , earth ,fire , sky and water. Particles are held together by forces of attraction. Q. 2 what happens if you put copper sulphate crystals in water: states of matter. [ refer ncert text book activities 1. 9 to 1. 11 ] Neither fixed shape definite volume . volume. nor fixed volume. Inter particle distances are smallest. are larger. are largest. Density is least and not diffuse. solids and diffuse. diffuse.
