1. Mixtures:
* Sand and water: While sand and water can be mixed, the sand particles don't dissolve. They settle to the bottom, making it a heterogeneous mixture.
* Oil and water: Oil and water don't mix, creating two distinct layers. This is a heterogeneous mixture.
* Air: Air is a mixture of gases, not a solution. The gases don't dissolve into each other.
2. Suspensions:
* Muddy water: Mud particles are suspended in water, but they can settle out over time. They are not dissolved.
* Milk: Milk contains fat droplets that are dispersed throughout the water, but they don't dissolve.
3. Colloids:
* Milk (again): Milk is considered a colloid because the fat particles are very small and dispersed evenly, but they aren't truly dissolved.
* Fog: Fog is a colloid of tiny water droplets suspended in air.
* Paint: Paint contains pigments (solids) dispersed in a liquid, but they aren't dissolved.
Key Characteristics of Non-Solutions:
* Components are not evenly distributed: You can usually see or identify the different components of a non-solution.
* Components can be separated: The components of non-solutions can often be separated by simple physical means like filtering, decanting, or evaporation.
* Components don't form new substances: Non-solutions don't create new chemical compounds through dissolving.
Remember: A solution is a homogeneous mixture where one substance (the solute) dissolves completely into another substance (the solvent). The result is a single, uniform phase.