Both substances mix evenly. Both substances can evaporate. One substance dissolves into another. One substance can be separated from the other.
I gave my students this multiple choice question: Sarah's class is learning about mixtures and solutions. Her teacher writes four statements on the board. Which statement best describes a mixture?

Only one answer is correct among these 4 choices:
- Both substances mix evenly.
- Both substances can evaporate.
- One substance dissolves into another.
- One substance can be separated from the other.

Could you tell me which one is correct?

One substance can be separated from the other.