Earth rotates on its axis. The stars orbit each other. Earth revolves around the Sun. The stars rotate with the Moon.
I gave my students this multiple choice question: Which of the following statements best explains why stars appear to move across Earth's sky each night?

Only one answer is correct among these 4 choices:
- Earth rotates on its axis.
- The stars orbit each other.
- Earth revolves around the Sun.
- The stars rotate with the Moon.

Could you tell me which one is correct?

Earth rotates on its axis.