Do you know that the sun got its name from the Roman God ‘Sol’? Things that are related to the sun are called ‘solar’ such as the solar system and solar energy. Some people also say that it is named after the Greek God ‘Helios’.
Many scientists and astronomers talk about the sun. You must have read about it in books and science magazines also. Aren’t you curious to deeply understand this ‘yellow dwarf star’? Let us understand the sun with 6 amazing questions.

1. Why is the sun the centre of the solar system?
   The sun is the biggest part of our solar system. Its diameter is 1.4 million km. It holds 99.8 percent mass of the whole solar family. With its huge gravitational force, it pulls all planets, stars, the moon, asteroids, and meteoroids towards it. They all revolve around the sun.

2. What is the sun made of?
   The sun is made of 2 hot gases- Helium and Hydrogen. Around 4.6 billion years ago, a big cloud of gas and dust formed the sun. It was called the solar nebula.

3. Why is the sun called a star?
   The sun produces lots of heat and light. Hot gases create high energy in the sun. That’s why it’s called a star.

4. How is the temperature of the sun?
   The temperature of the sun is very hot like a burning fire. It can reach up to 15 million °C in the centre of the sun’s core.

5. Where is the sun located?
   The sun is very far from the earth, about 150 million km. It is located in the Milky Way galaxy.

6. Why is the sun important?
   We cannot live without the sun. It gives us heat and light. Plants need sunlight to grow. Humans and animals need plants to survive. The sun changes seasons and causes rain. It produces energy and electricity. Without the sun, we will slowly die. The solar system will stop working.

The sun is a source of Vitamin D. Play in the sun to make your bones strong.
Did these questions and answers ring a bell? Isn’t it similar to your Class 6 Social Science topic -The Sun?

Correct!

You can also use the given diagram to easily remember this topic in Class 6 Social Science NCERT book.

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