Heterogeneous mixtures can be of two kinds: One is suspensions and the other is colloidal dispersions. They have been explained as following: • Suspensions: Suspensions contain large particles (over 1000 nm long) of insoluble solid or liquid suspended in (scattered throughout) a liquid. In time, the particles settle out. Solid particles suspended in a liquid can be separated from the liquid by using the technique of filtration through filter paper and by centrifugation. For example, in blood, the red and white blood cells are suspension in the plasma. If a sample of blood is left for a time, the cells settle out. The separation is accelerated by centrifuging the sample. Colloids: Colloids are heterogeneous mixtures whose particles are larger than the molecules and ions that form solutions, but smaller than the particles that form suspensions (between 1 nm and 1000 nm long). Gelatin and water for example form a colloid. Particles of gelatin are dispersed (spread) through the water. The two components cannot be separated by simply filtration through filter paper. Colloids are also called colloidal dispersions and colloidal suspensions. The solid (gelatin) is the disperse phase, and the liquid (water) is the dispersion phase or dispersion medium. Other examples of colloids include aerosol spray cans, milk, mayonnaise etc.
Here is a list of 5 heterogenous mixtures: 1.Blueberries with strawberries 2.pencils with pens 3.sand and pebbles 4.tree bark and brick 5.nails and hammers
Each of these are heterogenous mixtures because, even if they are mixtures, you can see each substance. Of course, they don't have to be solids, they can also be liquids and gasses, but solids are easier. :) hope I helped!
