The Sun is the core factor or identity that has made the living possible on this planet earth. Read the following short essay on Sun for students, with outline, images. This essay is written in short simple words, that is quite helpful for children and students.
Short Essay on Sun | Structure, Importance of Sun Essay for Students
Sun is the star which produce heat and light energy. The Sun’s gravity holds the solar system together by keeping planets in their orbits around it. The Sun is the center of Solar System. So, Sun is most important or significant body in solar system.
Structure of Sun: Sun is made up of gases. The Sun consists of three main parts: core, radiative zone and convective zone. In simple words, we can say that the Sun is made up of three layers. The inner most layer or core is responsible for nuclear fusion which emits heat and light. This light reaches the upper layers of the Sun. The radiative zone is located above the core and convective zone is just below it.
Sun is located in Milky Way (Milky Way Galaxy), which is about 26,000 light years from Earth and we can see it during the day. Other solar system bodies like sun are Mercury, Venus, Earth, Mars, Jupiter and Saturn etc.
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The composition of Sun:
The Sun is made up of following gases in percentage.
- Hydrogen (73%)
- Helium (25%)
- Oxygen, carbon, neon and iron together in the remaining 2%
- Age of Sun: The age of the Sun is estimated to be about 4.5 billion years which is equal to the age of earth.
- Mass of Sun: Sun’s mass is 2.0 x 10 30 kg which is 333000 times of earth’s mass and 333000 times of moon’s mass.
- Diameter of Sun: The diameter of the Sun is 1.39 million kilometer at its equator and 1.91 million kilometer at its poles.
Importance of Sun
The sun is the star which produces heat and light energy. So, it has very important role in our life. We can’t live without sunlight for more than a few minutes. Sun emits different types of radiations which are required for photosynthesis to take place in plants. Plants are source of food for animals and human beings. Sun is source of light energy.
The purpose of the Sun is to give heat and light energy. The Sun’s gravity holds the solar system together by keeping planets in their orbits around it. The Sun is the center of Solar System.
Sun gives heat and light energy where as the Moon gives only light energy. Sun is nothing but a source of heat and light, without sun life on earth wouldn’t be possible. Moon gives light during night. Sun is a star and moon is a satellite of the earth. Moon doesn’t have its own light but reflects light from Sun.
FAQs
1. Why sun is called GURU?
Hindus and Buddhists believe that sun is the giver of life. Sun is source of all energy on earth, without sun there would be no life on the Earth. It is not only the source of energy but also helps us in keeping our life on track.
2. Why sun is great?
Sun gives us heat and light energy. We can’t live without sunlight for more than a few minutes. Sun emits different types of radiations which are required for photosynthesis to take place in plants. It has very important role in our life.
Light energy produced inside the sun due to nuclear fusion of hydrogen and helium reaches the upper layers of the Sun. When this light is not absorbed by anything it travels earth and reaches our eyes as sunlight.
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3. Is it true that the Sun gives us life?
Yes, sun gives us heat and light energy. We can’t live without sunlight for more than a few minutes. Sun emits different types of radiations which are required for photosynthesis to take place in plants. It has very important role in our life.