My sister and I competed to spin eggs. I took a boiled egg and my sister took a raw egg. The game has already started, but I spin faster than my sister. At first, I thought my sister was not as good as me, so I changed an egg with my sister and found that my sister turned faster than me. Hey, what happened?
I ran to ask my mother, and my mother said to me, "Maybe Tong Tong's technology has improved." But I was not satisfied with my mother's answer, so I began to find the answer myself. I checked the encyclopedia of life, but there is nothing in the encyclopedia of life. I looked online again, but I still couldn't find it. I'm as anxious as a cat on hot bricks. I searched again, and the sweat on my head gradually increased. I looked around and finally found it. The result is:
If the egg is in a liquid state (raw egg), the yolk will vibrate, so that the center of gravity is not at one point, resulting in deflection and slow rotation. If it is a cooked egg, the center of gravity is fixed (its yolk and egg white have been steamed to a certain position), so it can rotate quickly, so the cooked egg rotates faster than the raw egg.
I suddenly understood, I told my mother this harvest, and my mother praised me for being suspicious and inquiring.
There is science everywhere in life. As long as you know how to discover, know how to find roots and know how to ask questions, you will find something.
I found a world in my pillow.
I have had stiff neck since I was a child. I often get up in the morning with my neck crooked and cry for my mother. Mother naturally rubbed me carefully, but it was not a long-term solution after all.
The pillows sold in the market don't suit me, so my mother decided to make them herself. Cotton is the best material, but it is too soft and hard, so my mother picks it up one by one and puts it in a pillow bag when it feels right. Two days later, I gratefully took this flower pillow from my mother. It is light, but it is heavy. I put my head in the middle of the flower pillow and put my head in. Cottonseed touched my head gently. I feel very comfortable, just like lying on the beach in the middle of the night, looking at the stars all over the sky, breathing fresh air and breathing the fragrance of my mother.
But when summer comes, cotton will smell musty when it is soaked with sweat. So, I simply put the pillow aside and slept with my head up. Naturally, my neck is crooked again, and my mother has something on her mind again.
No choice but to ask someone to bring back a big bag of mung bean shells from other places. My mother sewed a new pillow with it. This pillow is much better than cotton. I sleep on it, as long as I move it gently, there will be a rustling sound, like a nursery rhyme without lyrics, spreading in the quiet night sky, making even the night elves stop. Of course, I slept soundly. Later, I learned that these mung bean shells cost my father nearly half a month's salary, perhaps because I like this mung bean pillow so much that I will hold it when doing business. Finally, one day, the pillow towel was broken, and when I saw the mung bean shell floating to the ground, my tears suddenly fell down: this is the second pillow my mother made for me! & ltBR & gt I went to junior high school. My mother gave me a new pillow on the day I left home. The new pillow has medicinal taste and secretes human spleen. Mom said that dad bought it specially in Nantong. Every night at school, I hold a medicine pillow, listen to the sound of Chinese herbal medicine and enjoy the most wonderful music in the world. Every time I close my eyes, it's like holding my parents in one hand and coming to the deciduous forest to see the golden land and full of warmth.
As time goes on, I gradually understand that there is an unchanging world in this ever-changing pillow, and in this world, there is an emotion that continues all the time. Perhaps, the story about this world is not wonderful, but it will accompany me all my life. ...
Fan: I think playing chess is like life.
I have learned to play chess since the fourth grade. Over the years, I have gradually discovered that this small chessboard also reflects a huge life.
Two people play chess, and the bold one plays chess aggressively. At the beginning, they made an all-round attack and went forward bravely, with the tendency of "swallowing Wan Li"; Timid people are more important than defense, step by step, indecisive, for fear of losing the game because of unexpected events, and will adhere to the principle of "no one will attack me and I will not attack"; Steady people are thoughtful, resolute and seemingly calm, but they have already taken it to heart; Frivolous people are impatient and rash, eager for success, playing chess regardless of the consequences, and finally lose the overall situation because of one look; The scheming master deliberately lost to his opponent in the first game, increasing his pride, destroying his defensive heart, and spying on his opponent's routine to find countermeasures, saying that "the gentleman gave way to the first game" can really be described as fame and fortune, and then avoiding others' strengths, attacking their weaknesses, setting traps everywhere, please enter the urn until the opponent loses one game in a row and kneels down; Arrogant people tend to look down on their opponents, put on a "self-centered" and domineering posture, and opponents tend to be "shocked". Although this kind of person is psychologically good, it is difficult to win without real talent and knowledge ... People's different personalities and different mentalities are vividly displayed in this Chu-He Han boundary.
The quietness of the chess game is like a pool of spring water, which is stagnant, but once it is turned into action, there will be smoke everywhere, killing everywhere, killing and injuring countless people on both sides, and the momentum is no less than the battlefield where smoke is rolling.
Diamond cut diamond is indeed a happy event. The two sides sat down and fought for 300 rounds. They were killed in the dark, but they were still tied up. Both sides are inevitably upset, occasionally losing Jingzhou, and opponents seize the opportunity to pursue. It seems that failure is a foregone conclusion and there is no hope of victory. Suddenly, their eyes lit up, their backs turned to the horse and they went straight to Huanglong. The opponent was unprepared and ended in failure. At this time, I feel particularly carefree and unforgettable. ...
In fact, life is a chess game, life is an opponent, and it is not easy to give up. Only by learning from experience, summing up lessons and constantly improving ourselves can we win. I have always thought that it is worthwhile to discover the mystery of this life in this small land.
Therefore, life is like chess rather than chess.
I found the sunset so beautiful.
A ray of afterglow of the sunset shines obliquely on the wall, everything looks so quiet, and the white wall reflects a little reddish, which is really beautiful!
The home was quiet, and the family's heart was held by grandpa's illness, and there was a trace of sadness on their faces.
Suddenly I heard a slight noise in grandpa's room, followed by the sound of putting on shoes and falling to the ground. I rushed into the room, it was grandpa! Grandpa, he hasn't got up for several weeks. Today ... I was puzzled and was busy helping him. Just a few steps later, I heard a soft voice coming from my mother's room (grandma moved to the mother's room next door because of a stroke). Grandpa moved over and held the wall with his hand. Grandma also moved with the help of her mother and slowly came to grandpa. I saw the smile on Bao Ye's face, and the wrinkles around his eyes extended to both sides like fishtails. Her feet moved faster, but she couldn't help it. She leaned forward and almost fell. I held her, grandpa let go of my hand, held the wall panting, and walked on.
Grandma's pale hair was sparse and her body trembled with the wind. She looked at grandpa with tears in her eyes and her lips trembling slightly. She whispered, "Old man, old man ..." Grandma's hand stretched forward hard, and Grandpa also stretched out his weather-beaten veteran, still moving.
Closer, closer ... Two hands finally hold together. At this moment, all is silent, a thousand words, and the deep affection of life is immersed in this hand. My mother turned her back to wipe her tears, and I was in tears.
In the breeze, the walls reflected by the afterglow of the setting sun are more beautiful. Grandparents just hold hands and let tears flow. A clear song floated in the distance: "Because we held hands, we will go together in the afterlife ..."
Grandpa and grandma stand like two ancient statues. They spent hard years hand in hand, through decades of ups and downs, until they were old.
See the sun, although it is brilliant, although it is near dusk.
I found that girls can also be "the sun"
Fortunately, the creator created women and men, so cold and gentle, steady and delicate, rough and delicate exist between heaven and earth.
I don't know when, many people's thoughts have changed. They prefer boys to girls and think that "boys are the sun and girls are the moon", which naturally means that the sun is the light source and the moon is not. I am not convinced. Whenever a boy sings the song "Men should strive for self-improvement", I say to myself: Girls should strive for self-improvement! A few months ago, the physics teacher told us the good news of holding a national physics competition. I hope the students will sign up enthusiastically. Several boys who have been doing very well have lost their "bravery" in the past and just remained silent. I think: when the "sun" opportunity has come! When signing up, the teacher also cast a puzzled look.
After class, those boys came to my desk and said, "If you have the ability, you can get a prize back. If you can't get it, go home and be a silly girl! " ""I will! " I dropped a sentence and plunged into the preparation of the preliminaries. Only then did I know what real suffering is. I want to give up a little bit, but the voices of the "suns" echo in my ears: if I don't get the prize back, I will go home and be a silly girl! Silly girl? No, I want to hold a certificate to prove that I can do it, and girls can be the sun! So I was full of confidence and refreshed, staying up late to check; I searched books in the library, I went to the teacher to solve problems, and I went to the laboratory to observe the changes one by one. But I don't feel bitter and tired, because I always think: to fight for a sigh of relief for girls, I have to prove that girls can also be the sun!
The results of the preliminaries held by the school came out, and the list of winners was crowded with students. Ah, my name is in front, I succeeded! The physics teacher gave me an approving look, and the boys walked by me. "Silly girl" naturally stopped talking and showed a kind smile on her face.
I use my actions to prove that girls can also be the sun, female compatriots, don't you think? Since it exists in this world, we should bravely hold up this "half the sky" and not be underestimated by other "half the sky". Of course, boys will not give up easily, but I have this confidence. What about you, my fellow women?
Fan wenqi
I found my reason.
18 years old is the season of flowers and rain. It is in such a season that I found my own reasons.
By chance, I took part in the school holiday to make up lessons. In a Chinese class, I was absorbed in copying notes and didn't pay attention to others. Suddenly, someone called my name in the front row, but it sounded strange. I looked up and a beautiful face suddenly jumped into my eyes. "You ... what can I do for you?" I stammered, feeling that my voice had changed a little and my cheeks were burning. "Can you lend me your notebook? There are a few places I don't understand. " "Of course." I suddenly found myself and handed her my notebook. She took the notebook, with a smile on her lips, and turned away. I stayed there and my mind went blank. This may be "love at first sight" written in some novels. I am immersed in a lost daydream. ...
Hey, now that we've talked to her, what should we do next? Write her a note? No, that won't do. This note is obviously a boat ticket. At our age, can we sail this ship to fight the storm of life? I am just a student, a senior three student, facing the college entrance examination-the first major choice in my life. I should strive for the college entrance examination! Go! This is what I should do. I must not lose myself because of the early arrival of "children's affair" The road under my feet is still long!
In the rainy season, I found my own reasons, and I was glad to beat myself.
What scientific composition did I find 400 words One day in the summer vacation, the sun was shining and I was sweating profusely. I wanted to go out for some air, and suddenly I found that Chinese rose hung her head and was listless. I think I should water the flowers. I quickly poured a large jar of water into the flowerpot, and the water swished into the soil. I nodded with satisfaction and skipped back to the house to watch TV.
I watched TV leisurely in my room. About an hour later, I heard grandpa coughing. Grandpa's back! I didn't expect him to run to my room as soon as he came back: "Liangyu, how did the flowers wither?" I don't understand: "How? Obviously, I just watered the flowers. It cannot wither! " I ran out as I spoke. I can't believe my eyes. Although the leaves of the flowers are still green, the branches are scattered like illness, and the blooming flowers are withered. When I looked at the Chinese rose, I was really scared, because it was my grandfather's favorite flower. If it dies, grandpa will scold me. I was worried when my grandfather suddenly touched my head and said with a smile, "Do you know why flowers are like this?" I shook my head. Grandpa continued: "flowers can't be watered in the hot sun." That's because the sun is hot at noon, so the land is very hot. Water is cold to the land. After water is poured on it, the roots of the flowers will * * *, so the flowers will wither. Now you understand, you must remember not to water the flowers at noon in the future. " After listening to it, I suddenly realized, oh! I see.
I will never make similar mistakes in the future, and with the help of my grandfather, I have learned a lot about natural science. This knowledge will help me a lot in my future study. Do you think this is a great discovery?
Composition: My scientific discovery, my discovery.
Everyone may discover the secrets of something, and there will be many experiences in the process of discovery. Of course, even I don't like to find out, I will find out the secrets of things. If you don't believe me, please listen carefully
It was on a hot and cool summer day. ...
My sister and I are playing by the pond. Suddenly, a red fish jumped out, and a beautiful dolphin diving action, water drops fell on the lotus leaf like naughty children, rolled over, jumped up again, and a perfect diving action was born.
I think the lotus leaf must be wet with water drops, and it has no towel, so it is easy to catch a cold and can't take medicine. I dried it and gave it a chance to sunbathe. So I dragged the lotus leaf out of the pond. Touch the lotus leaf with your hand, well, it's furry and has a good texture. Take a closer look, huh? How did you do it? I didn't believe it, so I put the lotus leaf in the pond and took a bath for a while. It was still dry when I picked it up. Will lotus leaves be too hot and thirsty when they are hot? If you want to drink water when you are thirsty, why don't you swallow the water drops? It must be like this. I want to see how lotus leaves can drink water without their mouths. So, I don't care whether the lotus leaf feels cold or not, let it soak for a while. This time, I opened my eyes wide and watched with excitement. My heart is still pounding from time to time, for fear of missing the scene where water drops are eaten by lotus leaves. However, contrary to expectations, the water drops were not eaten by lotus leaves, but "bounced" into the water like marbles.
"Why don't lotus leaves get wet?" I walked into the study with questions and opened "100,000 Why". At first glance, oh, it turns out that there is a nano-film composed of nano-scale on the surface of lotus leaf. The nano-film is spread on the surface of the lotus leaf, which makes the lotus leaf smooth, just like putting a waterproof coat on the lotus leaf.
From this incident, I understand a truth: to gain more knowledge, it is not enough just to ask questions, but also to consult more books.
My first scientific discovery composition is 350 words. My first scientific discovery in sixth grade.
Give you a straw, an ordinary straw for drinking fruit juice, and give you a potato, a fist-sized potato just bought from the vegetable market. Excuse me: can you penetrate potatoes with a straw?
Can't! You could say that. What would happen if you were given an auxiliary tool-a cup?
I was reading a popular science magazine at noon today and saw an article entitled "Penetrating potatoes with straws". I find it incredible. Potatoes are hard, that fragile straw ... think about it, and I think of that classic.
The advertising slogan "Anything is possible". So I prepared the experiment with the mentality of overthrowing this statement and witnessing the miracle. To tell the truth, I am extremely ambivalent, but most of them still can't do it. Seeing is believing, and then driven by curiosity, I found a cup, a potato and a straw.
I first put the potato rack on the cup, then grabbed the straw with four fingers of my right hand, then buckled the top of the straw with my thumb, and finally stuck it hard-the straw Huo Ran passed through the potato.
I can't believe I rubbed my eyes, but I still kept the graceful posture of straw and potatoes. I still don't believe it. I think of magic, which reminds people that when they see it with their own eyes, they will have hallucinations. I don't believe my eyes anymore. I called my mother, and she didn't believe me, but we changed straws, potatoes and cups. We did several experiments and the results were the same. I have to believe it's true.
Later, I understood that the key of this experiment is to fasten the top of the straw with your thumb. In this way, the straw cut off from the airflow becomes extremely hard enough to penetrate the potato.
I have to admit how ridiculous my "hypothesis" was before the experiment. A slender straw really has the ability to penetrate potatoes.
This little experiment woke me up. In life, how many "impossibilities" exist only in the brain and not in the real world. And I, because of the "impossible" in my heart, missed many opportunities to try!
When the straw penetrated the potato, it also penetrated the prejudice in my heart. Science is around us, we should learn to try to believe!
Write a composition about scientific discovery. There is a Xiaohua Mall in my family. Its hair is soft and feels comfortable. Suddenly, I saw the beard on the cat's mouth. I remembered my father's beard. On second thought, my father looks younger and more handsome when he shaves his beard. Then, an idea matured in my mind. I picked up Xiaohua Mall and said to him, "Xiaohua Mall, do you want me to cut off your beard?" ? I mean no harm, I just want to make you more handsome. "Xiaohua Mall seems to understand my words, meowed a few times. So, I went to find a pair of scissors and "click, click" twice, turning the kitten into a "handsome guy". At this moment, a big mouse came out of the hole, and Xiaohua Mall swooped over ... I thought Xiaohua Mall would stop. However, to my surprise, Xiaohua Mall hit the wall and knocked it out. I'll bring it to my mother right away. Mom saw it and asked in surprise, "Where's the cat's beard?" I replied, "Mom, I cut off its beard. I wanted to make it a handsome guy, but I hurt it. " I creaked and told my father about it again, but my father burst into laughter. I can't help laughing when I think of the stupid thing I did today. Mother is so angry that she can't laugh or cry. Because my mother likes the handsome Xiaohua Mall best. Since that incident, I know that cats can't shave their beards. After shaving, it seems that it can't see the wall in front and loses its ruler. Therefore, whenever I see that Xiaohua Mall can't catch the mouse, but he is hurt all over, I can't help sighing and saying, "Handsome boy, I made you handsome, but I made you stupid. "Instructor: Bai Meixian, Jianshe Central Primary School in Wangdian Town, Xiuzhou District, Jiaxing City, Zhejiang Province.
Does anyone write about the mystery of tea?
Scientific discovery and invention Oil is lighter than water.
In our daily life, we often hear adults say that oil is lighter than water. But I never believed it, because the color of oil is deeper than water, and it seems that it should be heavier than water! Dad saw that I didn't believe it, and decided to do an experiment with me to prove whether oil is lighter than water.
First, dad brought an empty bottle and filled it with about half a bottle of water. Then get a bottle of ordinary cooking oil and slowly add it to the half bottle of water just now; At first, the cooking oil sank into the clear water, but after two or three seconds, I saw that the cooking oil really floated to the surface. But I still don't believe that oil is lighter than water, so I picked up a bottle filled with clean water and edible oil and shook it vigorously to make the edible oil and water fully mixed. But in less than half a minute, the edible oil and water still formed two layers, with oil above and water below. Dad saw that I was still puzzled and simply turned the bottle upside down. After a while, the result was exactly the same as the previous two times, with oil above and water below. I was shocked!
Through the experiments my father and I did together, I am sure that oil is really lighter than water.
I found the sunset so beautiful.
A ray of afterglow of the sunset shines obliquely on the wall, everything looks so quiet, and the white wall reflects a little reddish, which is really beautiful!
The home was quiet, and the family's heart was held by grandpa's illness, and there was a trace of sadness on their faces.
Suddenly I heard a slight noise in grandpa's room, followed by the sound of putting on shoes and falling to the ground. I rushed into the room, it was grandpa! Grandpa, he hasn't got up for several weeks. Today ... I was puzzled and was busy helping him. Just a few steps later, I heard a soft voice coming from my mother's room (grandma moved to the mother's room next door because of a stroke). Grandpa moved over and held the wall with his hand. Grandma also moved with the help of her mother and slowly came to grandpa. I saw the smile on Bao Ye's face, and the wrinkles around his eyes extended to both sides like fishtails. Her feet moved faster, but she couldn't help it. She leaned forward and almost fell. I held her, grandpa let go of my hand, held the wall panting, and walked on.
Grandma's pale hair was sparse and her body trembled with the wind. She looked at grandpa with tears in her eyes and her lips trembling slightly. She whispered, "Old man, old man ..." Grandma's hand stretched forward hard, and Grandpa also stretched out his weather-beaten veteran, still moving.
Closer, closer ... Two hands finally hold together. At this moment, all is silent, a thousand words, and the deep affection of life is immersed in this hand. My mother turned her back to wipe her tears, and I was in tears.
In the breeze, the walls reflected by the afterglow of the setting sun are more beautiful. Grandparents just hold hands and let tears flow. A clear song floated in the distance: "Because we held hands, we will go together in the afterlife ..."
Grandpa and grandma stand like two ancient statues. They spent hard years hand in hand, through decades of ups and downs, until they were old.
See the sun, although it is brilliant, although it is near dusk.
Please indicate the source for reprinting. Scientific Discovery Composition Scientific Discovery in Life