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Everyone should know how to light a candle with a match, but it is inconceivable to light a candle without the match touching the wick. Speaking of which, I found this phenomenon accidental. Once, I lit a candle and then burned the orange peel. The lit candle was blown out by a gust of wind, so I struck a match and the candle spontaneously ignited when it was 6 cm away from the wick. I think it's strange. After returning to school, I asked my tutor that he was doing such a small experiment today so that I could observe and listen carefully.

The experiment began. The teacher first took out a match from the matchbox. The sand and matches burned, and then the candles were lit. After burning for a while, the candle was blown out. I saw a wisp of smoke coming out of the wick. I think it's strange. Why does a good teacher blow out the fire? Before I could react, I saw the teacher take out a match from the matchbox with lightning speed and strike it quickly. The burning match is about 6 cm away from the wick, and the dancing flame rotates with the smoke. Suddenly, the flame roared like a meteor and jumped into the arms of Mother Candle. The candle burst into flames and danced with the breeze. The experiment succeeded. I have done this experiment over and over again, and I still don't know why. The teacher pretended to be mysterious, just invited the students to try one by one, and didn't explain what was going on so late. When the students almost finished, the teacher finally cracked it. It turns out that there is no fire source on the surface after the candle is blown out, but actually combustible gas flows through the candle. The second time, we ignited the combustible gas about 6cm away from the candle, which ignited the wick, thus forming this phenomenon.

I like scientific composition.

What makes 2 1 century so prosperous? It is science! Our life is inseparable from the word "science". If you think that science is just beating and doing experiments, you are all wet. There are too many sciences in our life, from the space shuttle flying in the sky to why birds can fly freely. It can be said that it is everywhere.

What is the significance of science to mankind? What will happen if human beings leave science? Give a few examples and you will understand: scientist Edison invented the electric light so that people can see the light all the time; Physicist Newton discovered gravity, which made us understand why we can't fly ... There are too many such examples, which have given great help to mankind. These things belong to science, but no matter how great these people and things are, they are just a drop of water in the vast sea of science. If we leave this ocean of science, human history will go back tens of millions of years, in other words, science has promoted human history!