In chemistry, a suspension is defined as a heterogeneous mixture in which particle size of one or more components is greater than 1000 nm. When mud is dissolved in water and stirred vigorously, particles of mud are distributed evenly in water. After some time, the particles of this solution settle underwater due to the influence of gravity. This solution is an example of Suspension (see picture below). Contrary to True Solution, particles of suspension are big enough to be seen with a naked eye.