Seasons occur due to Earth's axial tilt (23.5 degrees) and its orbit around the Sun. As Earth revolves, different regions receive varying amounts of sunlight at different times of the year. This variation causes changes in temperature, daylight, and weather patterns, leading to the four distinct seasons: spring, summer, autumn, and winter.
4 Suggestions
The Tilt of the Earth
The Earth tilts at an angle of almost 23.5° with respect to its orbital plane (the path taken around the sun). The difference amount of sunlight received by different parts of the Earth at different times of the year because of this tilting.
2. Earth's Orbit round the Sun
As the Earth moves once yearly around the Sun, its tilt remains fixed with respect to the stars and thus one hemisphere would be tilted toward the Sun while the other is tilted away; it also alters intensity-dial activity and time available for sunlight in the hemispheres.
3. How It Causes Seasons
Summer: A hemisphere tilted at the sunlight starts receiving more direct sunlight for more hours of the day, and thus a warm season occurs in that hemisphere. Winter: During this period, a hemisphere is tilted away from sunlight resulting in receiving less light hours and hence cooler temperatures. Spring and Autumn (fall): During these times there is an almost equal division of sun ray incidence to both hemispheres which brings in moderate season temperatures with nearly equal lengths of day and night.
Important Dates in the Year: Summer Solstice(Around June 21): The tilt of Northern Hemisphere is at its greatest towards Sun, hence, marking the longest day that year for that hemisphere. Winter Solstice(Around December 21): The tilt of Northern Hemisphere is at its greatest away from the Sun, hence, marking the shortest day that year. Vernal (Spring) Equinox(Around March 21) and Autumnal Equinox(Around September 21): The sunlight is for equal hours not so equal in both hemispheres.
5.
When it is summer in the Northern Hemisphere, it is winter in the Southern Hemisphere and vice versa. This is due to the fact that the tilt of the Earth affects one hemisphere differently than the other one.
Seasons are due to
1 .Earth's axial tilt -Tilt angle and tilt direction
2.Earth's orbital path - Elliptical orbit and elliptical speed
As the earth orbits the sun,its axial tilt causes the amount of sunlight reaching the surface to change resulting in following seasons -spring ,summer,autumn,winter
The southern hemisphere experiences opposite seasons due to its reversed axial tilt
1 .Earth's axial tilt -Tilt angle and tilt direction
2.Earth's orbital path - Elliptical orbit and elliptical speed
As the earth orbits the sun,its axial tilt causes the amount of sunlight reaching the surface to change resulting in following seasons -spring ,summer,autumn,winter
The southern hemisphere experiences opposite seasons due to its reversed axial tilt
We experience different seasons throughout the year due to the tilt of the Earth's axis and its orbit around the Sun. As the Earth orbits the Sun, the tilt causes different parts of the planet to receive varying amounts of sunlight at different times of the year. This results in seasonal changes in temperature and daylight. When one hemisphere is tilted toward the Sun, it experiences summer, while the opposite hemisphere, tilted away, experiences winter. Spring and autumn occur when the tilt is less pronounced, resulting in roughly equal amounts of sunlight in both hemispheres.