Four Seasons

The four seasons—spring, summer, fall, and winter—are caused by Earth's tilt and its orbit around the Sun. As Earth orbits, different parts receive varying amounts of sunlight, leading to changes in temperature and weather. When the North or South Pole tilts toward the Sun, that hemisphere experiences summer; when tilted away, it experiences winter. Between these extremes are spring and fall, with moderate temperatures. These seasonal shifts affect climate, plant growth, and daily life, creating predictable cycles throughout the year.