Diffusion
Diffusion is the _____________ of particles in a fluid from one region to
another. It occurs because of two properties of fluids: the particles have
___________ between them and are able to _________ ___________.
If we start off with two types of fluid which are separated, and then
___________ the barrier which is separating them then
_________________ will occur. The particles from both regions will
_________ _________ and move in the spaces between other particles. The
particles of each fluid will continue to mix until they are ______________
distributed. Diffusion ___________ happen in solids because their particles
can’t move around.
diffusion
move about
remove
spaces
movement
spread out
evenly
can’t
In the boxes below, draw the arrangement of particles at each of the three
stages of diffusion.
1) The two types of
2) The barrier is
3) The particles are
particle are
removed and the
evenly distributed
separated by a
particles have begun
barrier.
to mix.