Class 9 Matter In Our Surroundings Important Questions

Matter In Our Surroundings Important Questions Why do we see water droplets collected on the outer surface of a container containing ice cold water? Explain why temperature remains constant during interconversion of states of matter? Why do people sprinkle water on the roof after a hot sunny day? Why is ice at 273 K more […]

Class 9 Matter In Our Surroundings Notes

Matter In Our Surroundings Notes Physical Nature of Matter:- Matter is made up of particles. Particles of matter are very small that we can’t see by our naked eyes. Characteristics of Particles of Matter:- Particles of matter have space between them. Particles of matter are continuously moving. Particles of matter attract each other. We can […]