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NCERT class 9th Science Chemistry Chapter number 1 Matter in our surrounding short notes £8.93   Add to cart
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NCERT class 9th Science Chemistry Chapter number 1 Matter in our surrounding short notes
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In this document there is the short notes of class 9th Science Chemistry Chapter number 1 Matter in our surrounding from NCERT books.

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  • October 4, 2024
  • 12
  • 2024/2025
  • Lecture notes
  • Irfan sir
  • All classes

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  • class 9th science chemistry chapter 1 notes
  • class notes of class 9th ncert science

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  • Science Chemistry
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MATTER IN OUR SURROUNDING


NCERT
th
Class 9


Chapter – 1


MATTER IN OUR
SURROUNDINGS

, MATTER IN OUR SURROUNDING


Matter - Anything that has mass and occupies space
is called matter.
Physical nature of matter :-
Matter is made up of particles – Matter is made up of
small particles called atom. Atom cannot
be seen by naked eyes.
Characteristics of matter :-
1. Particle of matter have space between them :-
particle of matter have space between them we
can understand that when we dissolve the sugar
in the water the water level will not increase and
not decrease sugar dissolves in water completely
so, particle of matter have space between them.
2. Particle of matter are in constant motion :-
particle of matter are in constant motion we can
understand that from perfume. When we use
perfume the perfume smell reaches several
meters away because perfume has more kinetic
energy so it flows from one place to another
place so particle of matter are in constant motion.
3. Particle of matter attract each other :- particle of
matter attract each other they have forces of

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