Here's a breakdown:

* Solute: The substance being dissolved (e.g., sugar, salt)

* Solvent: The substance doing the dissolving (e.g., water)

* Solution: The homogeneous mixture formed by the solute and solvent

Key characteristics of a concentrated solution:

* High solute concentration: There's a lot of solute packed into the solution.

* Less solvent relative to solute: The amount of solvent compared to the amount of solute is relatively small.

* Appearance: The solution might appear darker, thicker, or more intense in color depending on the solute.

Example: A concentrated sugar solution would have a lot of sugar dissolved in a small amount of water. This would make the solution very sweet and potentially thick.