2.Solution: a mixture in which substances are completely blended so that the properties are the same throughout and the substances stay blended.
3.Suspension: a mixture of substances that separate upon standing.
4.Colloid: particles ( or droplets ) large enough to block out light spread throughout another substance.
5.Emulsion: a liquid spread through another liquid.
6.Aerosol: liquid dropsor solid particles spread through a gas.
7.Gel: a solid spread through a liquid.
8.Foam: a gas spread through a liquid or solid.