Here's why:

* Suspension: A suspension is a heterogeneous mixture where particles of one substance are dispersed throughout another substance but not dissolved. The dispersed particles are larger than those in a solution and are visible to the naked eye.

Let's look at a few examples:

* Milk: Tiny fat globules are suspended in water.

* Muddy water: Soil particles are suspended in water.

* Oil and water: Oil droplets are suspended in water (they don't mix).

Important Note: It's important to differentiate between a suspension and a colloid. A colloid is also a heterogeneous mixture, but the dispersed particles are smaller and do not settle out as quickly as in a suspension. Examples of colloids include milk, fog, and paint.