* Earth's Rotation: The Earth spins on its axis, completing one rotation every 24 hours. This rotation is what causes day and night. As we rotate, the sun appears to move across the sky from east to west.
* Our Perspective: From our perspective on Earth, it feels like we're standing still while the sun is moving. However, it's actually the Earth that's moving.
Imagine this: If you're on a merry-go-round, and you look at a fixed point outside, it seems like the point is moving in a circle around you. Similarly, as the Earth spins, the sun appears to move across our sky.
Key point: The sun is stationary (relative to our solar system), and it's the Earth's rotation that makes it appear as if the sun is following us.