Here's why:

* Heterogeneous means "different" or "not uniform".

* In a heterogeneous mixture, the different components can be easily distinguished. The particles are not evenly distributed or chemically bonded.

Examples of heterogeneous mixtures:

* Sand and water: The sand particles settle to the bottom, and the water is clear.

* Oil and water: Oil floats on top of water, forming distinct layers.

* A salad: You can see the different ingredients like lettuce, tomatoes, and cucumbers.

Let me know if you'd like to know more about mixtures!