1. If something 'smelly' is spilt, the smell
spreads around the room due to
movement. This spreading is from where there are
of 'smell' particles to where there are only a
of them in the
of the air.
2. This process is called
and is slow because the particles are always
each other
3. This process can also happen even
in
but cannot happen in
!
4. When a gas changes to a liquid it is called
and the particles come much
together.
5. If a solid changes to a liquid it is called
and the particles become
to move.
6. The process of
is when a liquid changes to solid and the particles come
together.
7. The opposite of condensation is called
. When this same process happens rapidly and at a fixed temperature it is called
and the particles move much
apart.
Quiz
7Gwf3 Questions on PARTICLE MODELS of GASES, LIQUIDS & SOLIDS - Doc Brown worksheet for QCA
7G KS3 science-chemistry