solvent:
the liquid in which a substance dissolves
solute:
a substance that dissolves in a liquid
solution:
mixture of a solute and a solvent
concentrated solution
contains a lot of solute in a small amount of solvent
dilute solution
contains a small amount of solute in a lot of solvent
saturated solution
is one in which no more solute will dissolve
crystallisation
the formation of crystals when a hot saturated solution is cooled