* Homogeneous mixture: A mixture where the components are evenly distributed throughout. You can't see the individual parts.

* Heterogeneous mixture: A mixture where the components are not evenly distributed. You can see the individual parts.

Explanation:

* Salt dissolves completely in water when heated. This means the salt particles become evenly dispersed throughout the water.

* You can't see the individual salt particles anymore – they are dissolved.

* The solution appears clear and uniform.

Important Note: Even though salt dissolves in water, it doesn't disappear. The salt and water are still separate substances, just mixed together in a homogeneous way. You can recover the salt by evaporating the water.