* The Sun: The Sun doesn't actually move. It's Earth that's rotating on its axis. As Earth turns, different parts of the planet face the Sun, making it appear to rise in the east and set in the west.
* The Moon: The Moon also doesn't rise on its own. It's held in orbit around Earth. As Earth rotates, we see the Moon rise and set just like the Sun because it's in the sky during our day. The Moon's appearance changes over time due to its position relative to the Sun and Earth.
In short:
* The Sun appears to rise and set because of Earth's rotation.
* The Moon appears to rise and set because of Earth's rotation and its position relative to the Sun.
