5 beautiful and concise manuscripts of scientific knowledge

Once there is a demand for technology in society, this demand will promote the development of science in more than ten universities. Here, share some handwritten newspapers about scientific knowledge for your reference.

Scientific knowledge manuscript 1

Science is a bridge for mankind to move towards a new era, and only with science can there be present household equipment. It is precisely because of science that the reform and opening up will succeed and the people will live in peace and contentment. With science, laughter is everywhere. I used to think it was useless to study science. I just need to learn Chinese. There will be development in the future. Until one day, a trivial little experiment changed my mind.

That was when I was in the third grade. It happened to be Sunday. I feel bored because I have finished my homework. So I went to play with Sally in the fourth grade. As it happens, he is also free. So he suggested playing table tennis. As soon as I heard it, I clapped my hands and shouted' Yes, yes'! So he gave me a table tennis board. Then he took me to the table tennis table in his backyard. He said to me, "Get ready, I'll serve." Then I heard a bang and the ball flew towards me like a rocket. I was in a hurry, but fortunately I was at a loss to pick it up and hit it back. However, after all, I just learned table tennis. Before long, the ball landed and I was going to pick it up. My foot slipped. I squashed the table tennis on the spot. I slowly picked up the table tennis and said to Sally apologetically, "I'm sorry, I crushed your ball." . "Sally watched the ball for a while and suddenly brought a pot of hot water and told me to put the table tennis in it. A miracle happened! Flat ping-pong balls gradually become round in hot water. I should be surprised. At this time, Sally said with a smile: "This is called' thermal expansion and cold contraction', and table tennis expands after being heated. Flat table tennis will become round. This phenomenon will be learned in your fourth grade. "After listening to this, I thought of my previous views on science class, that is, from that moment on, I should study science class rationally, and I couldn't help feeling silly.

There is science everywhere in life, and you can only find it by paying attention to it!

Scientific knowledge manuscript II

Science is everywhere. In fact, even table tennis hides scientific knowledge. Come and see if you don't believe me!

Today, when Mr. Zhuo came to class, he said mysteriously and put his hand into his wallet: "Students, Mr. Zhuo will give you a magic trick today!" " "Everyone doesn't know what medicine is sold in Mr. Zhuo's gourd, so most people's eyes are on Mr. Zhuo's purse. Who knows, she took out a bumpy ping-pong ball from her purse and kindly said to us, "Who can change this ping-pong ball back to its original appearance?" "The words sound just fell and everyone was talking and talking.

"Teacher, you can inflate the ball," said a classmate.

"If the teacher inflates, he will have to make holes. What if the gas leaks out? " Another classmate asked.

"The teacher can squeeze the dent of table tennis with the handle of the table tennis bat," I said eagerly.

"That's very difficult! What if it explodes? ……"

After some arguments, we finally chose the method of soaking in water. At first, I saw Teacher Zhuo bring a basin of cold water and a basin of hot water. Teacher Zhuo put the table tennis in cold water first, but it seemed to be asleep and motionless. Then Mr. Zhuo put the ball in hot water again. The table tennis seemed to be burnt and expanded in a second. "ah!" The students cried in surprise.

"Know why this is? Let's unveil this mysterious veil! " Teacher Zhuo said with a smile, "because there is a small separator in the air of table tennis, it will decompose quickly when it meets hot air." The more points, the more table tennis will expand. "

Wow! It turns out that a small table tennis is also learned! In fact, scientific knowledge is around us, so students should observe more!

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