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short note on chapter 1 chemistry class 9

chapter-1                

Matter in our surrounding

Matter- The substance that occupies the volume and mass is called matter.
States of matter-
1. Solid
2. Liquid
3. Gas
4. Plasma
5. Bose Einstein condensate
Charactersitcs of perticles of matter-
1. Particles of matter are in the state of continoues moment.
2. Particles of matter are attract each other.
 etc.
Change of states of matter-
Solid to liquid-         Fusion
Liquid to solid-       Freezing
Liquid to gas –       vapourisation
Gas to liquid-        condensation
Gas to solid-          solidification
Solid to gas-           sublimation












Conversion of temperature-)



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