The seasons change as the earth orbits around the sun.
When one side of the world is having daytime, the other side is having nighttime.
The earth orbits around the sun.
The sun appears to rise in the east and set in the west.
Completed in a year
The earth spins at a constant speed, always in the same direction.
completed in 24 hours
The sun appears higher in the sky during summer because we are tilted towards the sun.
We don't feel the earth spin because it spins smoothly, never changing pace.
Places near the equator (the center of the earth) don't have much change in season because those places are always close to the sun.