sunset happens as Earth turns away from the sun
each season lasts about 3 months
the part of Earth tilted toward the sun is having summer
Earth spins on its axis
season change as Earth orbits around the sun
the part of Earth tilted away from the sun is having winter
completed in a year
one side of Earth has daytime, the other has nighttime
sunrise happens as Earth turns toward the sun
sun appears to rise in the east and set in the west
areas near the equator don't have much change of season
completed in 24 hours
