Personal experience of 2022 science open class 1
Science is profound and requires us to keep trying and exploring. Even if something scares us, don't back down. As long as we face up to the difficulties, we will find more mysteries of science and enter the magical world of science.
The parents of a classmate in my class work in the Institute of Zoology. They invited me to experience the making of bullfrog bone specimens with several classmates and learn about the bone structure and characteristics of bullfrog. At that time, I agreed without careful consideration. It wasn't until a dead bullfrog with limp body and bulging eyes was placed on the experimental platform in front of me that I was shocked: we were going to dissect the body that frightened us and didn't want to touch it or even look at it again.
We looked at each other, and no one meant to do it. The students whose parents work here took the lead in putting on gloves and casually said to us, "Why are you still staring?" Put on gloves and prepare for autopsy! This is how my parents work every day, and scientific research is to try and explore in person! "It suddenly occurred to me that if we dare not attack anyone like this, what can we learn? Aren't we here to study scientific research? Several classmates and I began to hesitate whether to wear gloves. I don't know if gloves are difficult to wear or afraid. Five minutes later, we were all just playing with gloves. The student who had already started dissection couldn't stand it anymore and shouted at us, "Hey! Hurry up! What is there to be afraid of? If scientists, like you, dare not even touch a bullfrog, how can we talk about the development and progress of science and technology? "
Yes, if researchers are like us. ...
I finally got up the courage, took three deep breaths in a row, and with a nervous expression, I began to dissect with trembling hands. Huh? No blood? I can't help asking that classmate. She told me that the body was cooked for the convenience of autopsy. Gradually, I relaxed and began to learn to decompose bullfrogs bit by bit. Ask that classmate if you don't understand any questions, and learn a lot about bullfrogs. Especially through "zero distance" contact, I witnessed and felt the bullfrog as a hard skeleton and a developed and powerful hind limb of amphibians.
Science needs us to try bravely and do it ourselves, so that we can really have our own experience, learn more and deeper scientific knowledge, and even make our own new discoveries, so as to go deep into the scientific world. Only when you are close, can you feel, learn knowledge, grasp the essence and understand the truth.
Personal experience of 2022 science open class II
As soon as class started this afternoon, the teacher smiled and said to us, "Today we are going to do an experiment." Students are like monks in Zhang Er-they are all at a loss and don't know what medicine the teacher is selling. There is a big question mark on each of us. Then, we stared at a pair of curious eyes and began to watch the teacher do magic.
First, the teacher carefully picked up an egg from the lecture table. It's white and fat, so cute. Then the teacher took a bottle with half a bottle of water and put it on the table. Then, the teacher put the egg into the water again. The egg sank to the bottom. When it hits the bottom of the bottle, it makes a "dong" sound, like a diver. Then the egg shook a few times and stopped moving. Then the teacher asked, "Who can make the eggs float?" The teacher asked Tian Yue to answer. Tian Yue said, "Put the egg gently on the water, and it won't sink." The teacher did as she said. The teacher first took the eggs out of the water and put them on the water. Unfortunately, as soon as the teacher released his hand, he sank to the bottom of the water. We shouted "Ah" and were disappointed. This method is useless, and other students raise their hands again. I'm in a hurry, but I don't remember how to make eggs float from the water. The teacher asked Li Runze to answer it again. Li Runze in our class just likes to think. He stood up unhurriedly and said, "Just add some salt to the bottle." Those students who once held hands collapsed on the table like deflated balls.
At this time, the teacher took out her secret weapon-salt. She scooped up a spoonful of salt and poured it into water. Like an atomic bomb, salt fell to the bottom of the bottle and immediately a "white smoke" rose. The egg seems to be infected by its power and shakes a few times. At first, we thought it would float, but it didn't move as if it were drunk. It turned out that it fell asleep again. Teacher Wang added another spoonful of salt to the room, the same as last time, but a little floating. The teacher added a third spoon and a fourth spoon to it. The teacher took another pen to stir the salt, and the egg turned, like a propeller of an airplane, like a ballerina wearing red dancing shoes, and like a tornado, and kept spinning. Gradually, the water became clear and the egg showed its "little bald head". Like an island that has been sleeping for tens of thousands of years, it finally floated up. The students were in high spirits, cheering and clapping. Then, the teacher pressed the egg into the water with his forefinger. As soon as the teacher let go, the egg jumped out of the water like a spring, a pole vault and an inflatable ball. As soon as the "bald" egg touches the water, it seems a little uncomfortable. It sinks into the water first and then floats to the surface.
Why does salt float in water? Because the water is added with salt, the buoyancy increases and the eggs can float.
It suddenly dawned on me that science is everywhere. As long as you explore and discover with your eyes, you can find it.
Personal experience of "open science course" in 2022 3
This semester, we added natural science courses. Mother said, "Science is hard to come by." Dad said: "science is very difficult, you have to work hard!" " "What they said makes me nervous. Is science really that difficult?
Rinrin Bell, the students cheered "Science class!" I'm both looking forward to and nervous. The science teacher came with a happy smile on her face. The teacher said, "My name is Wang. From now on, everyone will call me Miss Wang." He went on to say, "Our first class is to plant red mung beans." The teacher told us that each of us gave out seven red mung bean seeds. The teacher said: "soak the red mung bean seeds for 3-5 hours first, then put them in the soil and water them when the soil is dry." When I got home, I did what the teacher taught me. On the third day, I really grew red beans and mung bean sprouts. I am very happy.
In the second science class, Teacher Wang took us to observe what was on the big tree. I saw birds playing happily in the trees and thin branches dancing in the wind. How beautiful!
Now I love science class, because science class is very interesting. It taught me a lot.
Personal experience of 2022 "Open Science Course" 4
"Science" is a very profound thing. It is like an ocean countless times larger than the universe. We are like one of thousands of creatures in the ocean. We explore every day and find that this is more conducive to our human knowledge, especially those pioneers in the field of knowledge-scientists. It is constantly updating our environment, so that we can have a better life.
In 2 1 century, science will become human life. If you don't know science, you can't survive in this society. If you have a scientific seed and cultivate it carefully, it will take root and sprout with time and bear countless fruits. The "Nobel Prize" is to reward those scientists who use their wisdom and hard work to cultivate fruitful results for the benefit of mankind, so that they can become our pride and become an example for us to learn. At the same time, encourage them to make more outstanding contributions to us and even to all mankind. 466 scientists from more than 20 countries won the Nobel Prize. When they walk to the podium of the Nobel Prize, they represent that they have great wealth created by science. It also represents their contribution to mankind. We should cheer for these people and cheer for them to change the world with science.
The power of science is infinite, and it will bring you unexpected wealth. Therefore, we should love science from childhood, but if we don't dig deep into the mystery of science and practice it, we will never get the happiness of science. Some people only know one thing and don't know another. How can they succeed if they only understand the surface and don't explore deeply? So be brave in trying and innovating. Used to overthrow the previous words and conclusions. And what you end up with is your own results.
How far is the Nobel Prize in Science from us? Needless to say, as long as you sow the seeds of science from an early age and study hard, it will be around us.
Personal Experience of 2022 "Open Science Course" 5
High-tech trends swept our home, first electronic building blocks, and then mysterious birthday gifts. Great! Just to my taste.
I like science since I was a child. It is said that boys study science and girls study literature, but I know nothing about literature and I am more interested in science than anyone else. Ha ha! God help me! Aunt gave me such a good gift, of course I want to accept it. As soon as I brought something, I was excited to play, but as soon as I opened the instructions, I was dumbfounded: "Nima! Why are they all in English? Unreasonable. It clearly says Made in China! "
Looking forward to, finally looking forward to the Chinese manual. I looked at the instructions happily and couldn't wait to start at once. After reading the instructions carefully, I looked at the mainframe. Turn on the switch, only hear "weird" music, and the game begins. I put on my headphones and put the metal clip on my earlobe. I saw the red, orange and green lights on the host computer, which were very beautiful. My face, frightened by the sudden light, was lit up. However, I calmed down and prepared for the challenge.
I put a small blue ball on the mouth of the fan and pressed the start button. The fan moved back and forth between the big disks and finally stopped in front of me. But I haven't raised the ball with my mind yet! It can't wait to move on its own, then it reaches the highest level, and then it drops to the lowest level. Like a running puppy, it just ran out of the house and was dragged home by its owner. After a while, I can control the ball freely. Now you can show your talent. I picked up a slender tube, ready to put the ball in, and then bounced the ball into the opposite "basket" with my mind. I stared at the ball and thought, "fly over, fly over." "But the ball and I are more energetic, as if to say," I don't go over, I don't go over, see what you can do to me? "After a long time, the ball seems tired, just listen to me and fly into the basket. Ha! I won the war.
What? You asked me where I bought it? I told you, someone gave it to me. I don't know. What's your name? All in English. I can't understand it. Check it yourself.
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