Current location - Education and Training Encyclopedia - Graduation thesis - I want an essay on science and technology.
I want an essay on science and technology.
Why does white vinegar show words?

I only know that white vinegar is an essential seasoning for cooking, but I don't know that it has the function of displaying words. But why can white vinegar show words? I have conducted in-depth research and experiments on this problem. Is it possible that white vinegar has something to do with its materials?

According to the online statement, I found half a candle, an A4 paper, a lighter, a writing brush and white vinegar. First, I poured white vinegar into a bowl and dipped it in a brush to write. Then I put the paper away so as not to be thrown away. Secondly, I put away the candles and lighters, and the preparations are over. I started the experiment. In the first step, I said that my brush was dipped in white vinegar and I wrote the words "Lilin Middle School". At first there was a watermark, but at last nothing was visible. How can I read the written words? In the second step, after I lit the candle with a lighter, I dropped some wax oil on the plastic mat, so it was fixed. Then I baked the paper with white vinegar. Slowly, words began to appear on the paper, but they were blank just now. What's going on here? Is it really related to the material I think white vinegar is made of?

Looking up information on the internet, I found that white vinegar can write on the egg shell, and the words written on the egg white will also appear. White vinegar can also show blood, remove acne, whiten skin and freshen air. But I also found that not only white vinegar can display words, but also milk can. They are all special substances that can display characters like marks at high temperature. Smart people use white vinegar to send messages to each other without trace or being discovered by the enemy in the war. My hypothesis has been confirmed.

With the rapid development of science and technology, the pace of our life is also accelerating. Generally speaking, people think that science is far away from us. For example, Shenzhou VII is something that ordinary people can't do, but there are many things around us that can be explained by science, just like this experiment. If we ask questions and do experiments, how do I know that white vinegar can show words?

The best way to learn science is to ask questions, make assumptions and then do experiments. Only in this way can we uncover the mystery of one thing after another. Only by learning science, loving science, knowing science and understanding science can we master more knowledge and better supplement our knowledge to more knowledge.

From an early age, we should form the habit of asking more questions. I believe there will be countless "Qian Xuesen", "Newton" and "Watt" in the future. We should also strive to be one of those 10,000 people, learn this interesting subject well, enrich our common sense of life at the same time, and make us more confident in the unknown study.