Is the sun a big ball of fire?
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Sun is a star not a ball
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NO. Sun is a star.
The Sun does not "burn", like we think of logs in a fire or paper burning. The Sun glows because it is a very big ball of gas, and a process called nuclear fusion is taking place in its core.
It is a large ball of very hot gas in a (plasma) state. The air we breathe and the helium in a balloon are both gases. It is over 5,500 °C at the surface, and much hotter at the center, about 15 million °C. The Sun is made of mostly hydrogen (70%) and helium (28%).
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