Upon standing the solids start to settle to the bottom of the container. In water suspensions the average suspended particle is larger than 100nm, whereas in a solution all particles are less than 1nm. ... Emulsions are immiscible (incapable of mixing) colloidal suspensions of one liquid in another liquid.

What does not settle out on standing?

A colloid is a heterogeneous mixture in which the dispersed particles are intermediate in size between those of a solution and a suspension. Because the dispersed particles of a colloid are not as large as those of a suspension, they do not settle out upon standing. ...

Does the components of a colloid settle at the bottom?

A colloid is a mixture that has particles ranging between 1 and 1000 nanometers in diameter, yet are still able to remain evenly distributed throughout the solution. These are also known as colloidal dispersions because the substances remain dispersed and do not settle to the bottom of the container.