Particle Model of Matter

poisonous

harmless

non-toxic

useful

no new substances are formed

arrangement of particles is changed

motion of particles is changed

all of them

melting point

boiling point

freezing point

evaporation

Democritus

Aristotle

Robert brown

John Dalton

Democritus

Aristotle

Robert brown

Albert Einstein

arrangement of small particles

freedom of motion of small particles

freedom of motion of big particles

both a and b

solid

liquid

gas

molten

solid

liquid

gas

air

osmosis

diffusion

Brownian motion

parallel motion