Sunlight and Earth's SeasonThe energy from the Sun is causing many different aspects in Earth, for instance seasons. There are many different kinds of seasons in Earth, which is caused by the Sun's energy. But that is not the only thing that is creating seasons. The axil tilt of the Earth is another concept that is related to the seasons. Earth is tilted at an angle of 23.5°, which make a direct and indirect distribution of Sun's energy. The region around the equator get the direct energy from the Sun and region around the pole get the indirect distribution of energy from the Sun. The temperature will change as the latitude of the Earth change. There are three regions from pole to the equator and they are called, polar, temperate, and tropic. Each region have different climate and weather and it will be discussed later in this page.
The rotation and the revolution of the Earth cause solstice. Rotation is a spinning of Earth on its axis and revolution is the movement of one body in space around another. Solstice will also be explained later. |
Latitude Zones |
From 66.5° north the NorthPole and from 66.5° south to the South Pole are the polar zones, which are generally cold. From 23.5° north to 66.5° north and from 23.5° south to 66.5° south are the temperate zones, which generally have four seasons. Between the latitudes of 23.5° south and 23.5° north is the tropic zone, where Earth is generally warm. There are four seasons in temperate zone because the Sun's distribution of energy will change as the Earth rotate and revolve around the Sun.
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Solstice |
Day and night is also made by the rotation and the tilt of the Earth. Solstice is when the Sun is directly overhead at latitude 23.5° north or south. The summer and winter solstice is happening by the different amount of the Sun’s energy to the Hemispheres. When the Northern Hemisphere is tilted towards the Sun, it is a summer solstice. It will receive the longest amount of daylight. When the Northern Hemisphere is tilted away from the Sun, it will be a winter solstice, where daylight hours are shortest. Lastly, when the two hemispheres of the Earth tilt towards the Sun, it will be an equinox. When this happens, the lengths of daylight and darkness will be equal.
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