Comments on the third season of open science course (10)

Comments on the third season of open science course (total 10)

The "third season science open class" is coming again! How to write the third season science open class? The following is my thoughts on the third quarter open science class (10) for your reference. Welcome to collect and share!

Comments on the Third Season Open Course of Science 1 Science comes from life, and there is also a shadow of science in life. Even the courses in science classes have something to do with everything.

Let's take a look at it with me first: the familiar velcro, that is, the hook, was invented by an engineer after a long period of research after he found and observed Bidens bipinnata after walking with his dog.

We learned in science class that magnets attract the opposite sex, do you remember? It seems useless, but when she was in the sixth grade, a big sister in Wujiashan, Wuhan, used this principle and tried again and again to design a portable anti-slip soap, which won the national patent.

Some students complain that studying science is not practical. I thought so before, but after reading this girl's story, I found that the wonderful use of science is not limited to a certain place. It can reach many places from one knowledge point. Even just to make jelly, you can think about whether the agar used for homemade jelly is animal or plant. There is always science in life.

In the future, science may be more widely used, from rocket planes to smart chairs, bit by bit, everywhere. So study hard, study hard. You may be among the scientific and technological innovators in the new era!

I have made many scientific discoveries since I was a child, but I was impressed only once.

I did an electromagnet experiment in that science class and it was very successful. This experiment needs to prepare a battery, a wire that can be electrified inside but will not get an electric shock outside, the longer the better, a big nail, the thicker the better, and a few small nails, and then I began to do the experiment.

A few days before the experiment, we had a science class. At the end of the science class, the teacher said that we would do an experiment in the next class, which was about electromagnets. We are all very excited because we are very interested. The teacher told us what materials to prepare, and let us prepare the materials in advance.

In science class, I take things out. The teacher asked us to open the book first to see how it works, and then demonstrated it ourselves. After I read it, I followed it. Sure enough, others succeeded. The teacher asked us to try how to attract more nails. We tried many times and finally came to the conclusion that the more battery sections, the longer the wire and the greater the suction. I am very happy after knowing the answer.

The scientific experiment I did this time is very interesting. This made me understand the truth of electromagnet. I like this scientific experiment very much.

Reflections on the third season open science class 3 I will never forget that science class, and I will never forget my personal experience in class.

That science class was about "drilling for fire". The teacher asked everyone to understand these contents, and I raised my hand proudly.

Unexpectedly, this time the teacher suddenly changed his strategy and said happily, "Great, let's ask Mr. Zhang to tell you something!" "

"ah? ! "I didn't react at once. "How did that happen? It's amazing of you to test us in this way! Let me be really embarrassed! "

But there's nothing I can do. Amid applause, I had to bite the bullet and walk onto the stage.

I don't know what to say because I haven't prepared in advance. I used to yearn for the job of teacher, and I always felt that the teacher was so arrogant. If I really stand on the podium like a teacher and look at the curious eyes of those students, even if I am knowledgeable, I will forget everything.

I thought to myself, "Just say yes and don't lose face!"

So, I began to follow the ideas in the book, carefully imitate the teacher's methods and teaching methods, get rid of adult things, and give classes to my classmates in my own language. But at first, I was so nervous that I didn't even ask my classmates, so I said the answer myself and made everyone laugh. Even the teacher couldn't help reminding me: "Zhang Cheng, ask your classmates, don't always say it yourself." After listening to this "technical guidance", my face turned red. ...

After my "struggling", I finally got the praise of teachers and classmates. I let out a long sigh and walked back.

With this experience, I suddenly feel that the teacher is right: only when I become a teacher can I realize my own shortcomings. I will study hard in the future, otherwise, when I become a teacher in the future, my students will laugh their heads off.

Comments on "The Open Class of the Third Season of Science" Part IV The Science and Technology Festival of our school has opened again! The project of this science and technology festival competition is "Water Building". Today, Teacher Yang solemnly said to everyone, "In this class, we will select contestants. You go to pour water in groups and prepare paper cups on the table. "

The game has started. According to teacher Yang's request, I first put the bottom six paper cups on the washbasin. At this time, I found the cup floating on the water, always swinging from side to side. Is there any good way to keep the cup from shaking? Suddenly, I saw my classmate pour water into six cups. Soon, a miracle happened in the cup! I saw the glass standing steadily. I quickly followed his example and poured some water into the cup so that my cup wouldn't shake. Then, I stacked the cups layer by layer. Just when I was proud, I heard a bang and all the cups fell. I failed, very disappointed! At this time, the teacher gave the order to "stop" and all the students stopped. Then the teacher announced to us the contestants who participated in the "Water Building" this time.

"Water architecture" not only exercised our children's practical ability, but also tapped our wisdom! Even added infinite fun to our after-school life. We are gradually moving towards the door of science, and hope that next year's science and technology festival will be more exciting!

Comment 5 of the third season open science class "Come on, it will be crushed soon!" Our class gave a cheer. It turned out that the students in the composition class were playing the game of pinching eggs. Very interesting!

The rules of the game are: you must put the egg in the palm of your hand and pinch it with your whole hand. You can't let the egg touch anything hard, and you can't pinch it with two fingers. This game seems simple, but it is actually a big "roadblock". Do not believe you see our class "Hercules" to it. A round egg is in the hands of the "Hercules" in our class. I thought to myself: Isn't this egg just like hitting a stone? It must be broken. But the result made us dumbfounded. When our "Hercules" was flushed and panting, the eggs were intact, and "Hercules" just walked off the stage with his head drooping like a defeated rooster.

The second classmate went up. He concentrated his strength on his hands and squeezed them, but the eggs were still as hard as diamonds. When the students put the intact eggs on the table, the eggs seemed to provoke us: "Hum, can't you beat me?" You're still a little green! "

I rolled up my sleeves and volunteered to play. I kept rubbing my hands to increase my strength, but my heart was like carrying fifteen buckets-so anxious. I'll put the egg in my palm first, surround my fingers evenly and hold it hard. Suddenly I felt a hot face, and the veins stood out on my hands exploded, and the whole person was shaking, but the egg was still safe. At this moment, the teacher smiled: "What can we do?" ? Because the stress around the egg is even, and the forces can cancel each other out, so you can't crush it. "

It turns out that there are such amazing scientific phenomena in life. I think as long as I try my best to discover and practice in the future, I will certainly gain something.

Comments on the Open Course of Science in the Third Season 6 Zhao Ceng compared science to a door, and people who walk through this door will not return empty-handed. Yes, when I approach literature, I approach a colorful world.

Approaching science, I heard the sigh of the Chinese Millennium.

You like to sit in front of a sunny desk with a book of poems in your hand, so that the smell of sunshine and humor fills your nose. Approaching the ancient rhyme of China's poems, I deeply appreciate the feelings of Confucius' deceased, Li Qingzhao's frown only leads to inner anxiety, Mr. Wu Liu's carefree attitude of "drunkenness is not about wine", and Su Shi's lofty aspirations of "holding a bow like looking at the moon" ... Thousands of years of sighs, some deep and some high, can be heard as long as you walk into literature.

Approaching science, I touched the immortal soul.

Cao Xueqin approached literature all his life and drifted from place to place, eventually casting a enchanting dream of a red chamber; Gorky approached literature and made a masterpiece of life trilogy; Ostrovsky approached literature, bravely resisted diseases and demons, and forged steel legends. Approaching literature, another batch of immortal souls were born under their immortal souls, which gave me the courage to persist and taught me the true meaning of life. Approaching literature, those immortal souls hit my heart again and again. Alessa taught me to be self-reliant in adversity and face the difficulties of life bravely; Paul told me to have dedication and iron will; Jane Eyre told me that I am persistent and single-minded in the morning and have self-esteem as a human being. Approaching literature, I seem to see Nora's departure, Anna lying on the track, Maslova's consciousness, Eugénie's contribution ... The glamorous literary image in the book and the immortal soul that has survived for many years are nothing more than the bright light that I grew up in Lusheng, illuminating my way forward.

Approaching science, I enjoyed the baptism of my mind again and again.

In the dead of night, I spread out paper and ink under the desk lamp and wrote at my desk in the thick tea fragrance. Let a wisp of sadness and dribbling touch flow from the pen tip. I approached my own literature, washed away the filth of my heart and scars with words, and got a bright and crystal heart and a pair of eyes that are good at discovering. Literature is a thousand-year-old wine. I drank myself as drunk as a fiddler, approached literature and savored the subtle taste of the wine, which was smoky and fragrant.

Thanks to science, I grew up with you. Time flies, my love for literature has not diminished at all. Walking into science, I walked into a colorful world and approached a beautiful life.

Some people think that science is far from our life. In fact, life is not only around us, but also closely related to our life. I'm going to do the simplest experiment today-soybean germination.

Soybean sprouts look very simple, and I didn't know this seemingly simple experiment was actually very complicated until I did it. I'll get some soybeans first. They are round. The color of soybeans seems to be khaki, a little close to skin color, and it seems a little yellow. There are some wrinkles on the surface, such as water ripples, and wrinkles on the old man's face. It turns out that soybeans are like this and have so many characteristics. It is really insightful to observe soybeans at such a close distance for the first time!

I found a transparent cup, put the soybeans in it and added water. I waited quietly. About half an hour passed, and I began to get impatient. Is the skin of soybean really that hard to fall off? After waiting so long, nothing happened. Just thinking about it, I don't know how long it will take, so I can't help but turn my eyes to the cup. "I finally skinned it." My frowning brows slowly spread out. How many! Soybeans become bigger and fuller than when they started. Many soybeans have a small crack, and there is a fragrance in the cup. The beans have become smoother and rounder. I wish it could grow up quickly!

It takes time to soak bean sprouts, so I endured it for two days. I ran to the cup and saw sharp and short white buds on the head of soybeans, which was very attractive. Four days later, palmers began to become curly, curved, playful and cute.

Over time, in my expectant eyes, the bud is still a little long and thick, and the sprouted bean skin has begun to rot. It took off its ugly rhubarb pajamas, revealing a layer of green and smooth body, and fat soybean sprouts finally appeared in front of me. I am very satisfied with the result of my experiment. Although it took patience and careful observation, I finally succeeded, which is my happiest thing.

In fact, science is all around us. As long as we observe and think carefully, we will find many scientific secrets, so I will study harder now. Only when I have profound knowledge can I solve more scientific mysteries.

Comment 8 on the third season science open class I saw science, in the yellowed pages of ancient books: I saw science. I waved my hand to say hello to science. What responded to me was the loud noise like a mountain call and tsunami, and the voice of the soul of the whole world. ...

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I have been fascinated by Newton's apples and Galileo's telescopes since I was a child. The ancients always looked at all ordinary things with a philosophical eye. This surprised me, and I am eager to understand this vision. One day, I happened to see ants gathered around a small mound. I remember my mother said it was going to rain when the ants moved. I suddenly jumped up, opened my arms and shouted, "It's going to rain! Ants have moved! " When I learned that this law is a kind of "science" in the legend, my tender heart couldn't help trembling, and I couldn't help crying, "Hello, science!" "

Later, I took a science class and participated in a small invention class. When the current first passed through my fingertips, I seemed to feel the heartbeat of science. It was a continuous, smooth and gentle movement, like the old man's deep complaint and the tiger's snoring in his sleep, with great potential. Electricity, from battery to motor to fan, force, from fan to air to car, if you just look at the car, you can never see the way out. You can do it with your hands. A few simple wires can make the flow route of current clear, which is the secret of scientific practice. Only then did I realize that the science observed in the past was just the tip of the iceberg, and I couldn't help but re-examine this familiar and strange friend: "Hello, science!" " "

Now, after countless explorations, I understand that science has already entered thousands of households and spread all over the universe. Throughout the ages, scientists who have been worshipped by countless people have also moved from simple scientific principles to complex scientific machinery step by step, from one-sided scientific theories to a broad scientific world. Nowadays, billions of people are striding forward along the road of science, looking for a fulcrum that can "shake the earth"!

Science, did you see it? How persistent human beings are in your pursuit and how difficult it is to explore you! With the progress of the times, the exploration team will inject fresh blood, constantly refresh their understanding of you, unveil your countless veils, and call you with earth-shattering voices:

"Hello, Science!"

Comments on the third season open science class 9 science will add colorful light to the plain and colorless white paper; Science will turn yellow leaves into beautiful and vivid butterflies; Science will make useless garbage more pleasing to the eye; Science will make our life better.

Once, when my mother wanted to throw the milk box into the trash can, I remembered the "turning waste into treasure" in the science book, so I quickly said to my mother, "Wait a minute, mom, the milk box is not useless, it can be turned into a beautiful and clean small trash can!" My mother smiled, put the milk box in front of me and said softly, "OK! Then use your hard hands and smart brain to turn it into a trash can! " I listened and started working at once. First of all, I carefully pierced a hole in the "ear" of the milk box with scissors, and then put it on with a rope, so that the trash can can be lifted; Finally, draw many beautiful patterns on the milk box, and a milk box will turn waste into treasure and become a trash can that everyone needs! Whenever I throw garbage, I will know that science has created a better life for us!

I remember once on the eve of Teachers' Day, some bottles at home were thrown into the utility room. When I saw it, my eyes lit up and I kept thinking about the way the teacher taught us to make plastic flowers in science class. I happily ran in and picked up the bottle, found the tools I needed, and couldn't wait to get it: first cut off the bottle cap and make it into a flower core; Then, cut the bottle into strips regularly, and the "petals" will be fine; Finally, stick them into the shape of roses with double-sided tape, and then paint them with beautiful colors, and a delicate and charming rose will be beautifully displayed in front of you. I gave this handmade "flower" to my teacher as a teacher's day gift, and the teacher's eyes showed appreciation. Every time I think about it, I will understand that science has given us beauty and made our life better.

If there is no science in the world, the sky will be eclipsed and never blue; If there is no science in the world, the grass will no longer be strong and become yellow; If there is no science in the world, the stream will no longer be clear and reflect the blue sky and white clouds; If there is no science in the world ... science creates blue sky, science creates talents and science creates a better life!

Comments on the third season open science class 10 I remember last summer vacation, my father and I visited the Shanghai Science and Technology Cultural Center. After this trip, I realized that science is of great significance to our lives.

When we came to the first room, we were stunned by the sight inside. The golden faucet is hanging in the air. How amazing! The water from the faucet is as clear as the clear lake, and clearer than this! Then we turned to the planetarium. Before I came to the telescope, I squatted down and looked at things in space. The scene inside is amazing, which makes me extremely excited and happy. How I want to take this wonderful scene and take it as a souvenir!

When we came to the second room, it was also my favorite room, because there were my favorite robots there. The robot here is not the remote control robot we played when we were young, but one of our scientific masterpieces-automatic robot.

They will chat with us, play and tell you jokes. Even some robots have become waiters. They will automatically bring you a cup of coffee or a cup of juice. When you drink it, he will open his mouth and smile at you, and then go back by himself. Look! They are so cute! But when we went to the next room, we suddenly heard a lot of rock music and looked up at the sign of "robot concert" in the room. Wow! When you walk into the room, you really understand how amazing science is. On the stage, several robots are beating their heavy bodies to match the rhythm of rock music. Although the dance was not so good, the room was full of happy laughter and fierce applause!

Finally, we came to the 3D cinema Ice Age. When we first entered, the waiter at the door strangely gave everyone a transparent blindfold. We sat in the audience and saw that everyone was wearing that transparent blindfold, and we exclaimed while watching it. I thought: what is amazing? So exaggerated! Dad tapped me on the head and said to me, you little fool, they acted as if they were here. Very interesting. Try it on! I put on an eye patch. Wow, it's so realistic. How can it be so real? I couldn't help exclaiming, which attracted the attention of others. I hung my head shyly. At this point, I just want to shout: science, you are really something, you are the beginning of our human development! In fact, science itself is very colorful. As long as we explore and study, we will find the mystery!