Seasons

Seasons occur because Earth tilts as it orbits the Sun. This tilt causes different parts of the planet to receive varying amounts of sunlight throughout the year. When the Northern Hemisphere tilts toward the Sun, it experiences summer with longer days and warmer temperatures; when it tilts away, it experiences winter with shorter days and colder weather. The Southern Hemisphere experiences opposite seasons at the same time. Spring and autumn happen during transitional periods when the tilt shifts, leading to moderate temperatures and changing daylight hours. This tilt and orbit combination creates the cycle of seasons we observe annually.