The Sun is far away. The Sun makes heat. The ice cube is a solid. The ice cube looks clear.
I gave my students this multiple choice question: An ice cube placed in sunlight melts quickly. Which BEST explains this event?

Only one answer is correct among these 4 choices:
- The Sun is far away.
- The Sun makes heat.
- The ice cube is a solid.
- The ice cube looks clear.

Could you tell me which one is correct?

The Sun makes heat.