The mixture changes color. The water becomes cloudy. The oil dissolves in the water. The oil and water remain separate.
I gave my students this multiple choice question: What happens when oil and water are mixed?

Only one answer is correct among these 4 choices:
- The mixture changes color.
- The water becomes cloudy.
- The oil dissolves in the water.
- The oil and water remain separate.

Could you tell me which one is correct?

The oil and water remain separate.