Science 1st Year
2019
Unit 1
States of matter
We learned
that before!!!
Matter is made of
particles
The different states of
matter are due to the
different arrangements
of particles
Solids
The solid particles hold each other very tightly
There´s a strong force of attraction
Solids have a
definite
shape and
volume
Liquid
In liquid state, the particles are packer closely together
The particles are much farther apart than
the than the particles of solids
The force of
attraction in
liquids is
weaker than
it is in solids
Liquids have a
definite
volume but
they do not
have a definite
shape
Gases
The particles of matter are very far away from each
other
Gases can fill
the entire
space or
volume of a
container
Let´s contruct some models…