Question

Extra questions of matter in our surroundings

Answer 1

buildings water chair books everything is matter




......matter is a molecular mass made up of small cells known as atomic mass




hope it helps

Answer 2

ques :- name two process which provide the best evidence for the motion of particles in matter ?
ans :- (1) diffusion
(2) Brownian motion

ques :- what is the scientific name of particles which make up matter ?
ans:- Atom or molecules

ques :- describe in your own words what happens to the particles when salt dissolve in water ?
ans:- when salt is added to water and stirred that we solve particles break off from each solid salt and fill up the space is available between the particles of water and mix with them

ques :- why do gases have neither a fixed shape nor a fixed volume ?
ans :- a gas does not have a fixed shape or fixed volume because the particles of gases do not have fixed position nor a fixed space between them

ques :- give two reason to justify that :
(1) water is a liquid at room temperature ?
ans :- because water has a fixed volume but not a fixed shape .

(2) an iron almirah is a solid ?
ans:- because iron has a fixed shape and it has a fixed volume .