Today, my mother bought a bottle of orange juice. I found a scientific truth from it.
That day, my mother was talking to the guests and asked me to take the orange water to drink. At that time, I was watching TV. Suddenly, my classmate called and told me yesterday's homework. I mistakenly took the cotton swab as a pen and the orange water as ink, so I dipped the cotton swab into the orange water and wrote down yesterday's homework. I hung up and looked at my homework again. My God! Not even a trace of water! What shall I do? I took the paper in my hand, left and right. Finally, I took the paper under the light, and the words appeared again. It's strange!
I did it again as I did just now, and then I looked under the light, and the words came out. How could this happen? I found the "100000 whys" and opened the directory to find it. After a while, 'ah, I found it.'
It turned out that the orange water itself was made of water. When it was written on the paper, it was immediately absorbed by the paper. Under the natural light, the strong light showed the imprint.
I think, as long as you work hard, there is science everywhere in life and learn science in everything. Heilongjiang Science and Technology Museum_ The 200 word Heilongjiang Provincial Science and Technology Museum, referred to as the science and Technology Museum for short, is located on the beautiful sun island on the North Bank of the Songhua River. It is a ship building with unique shape and spectacular.
The science and Technology Museum is divided into three floors, with many supporting facilities, infirmary, fast food restaurant, good-looking performances and experiments, as well as multiple exhibition areas. On the first floor, there are machinery exhibition area, mathematics exhibition area, electricity exhibition area, magnetic exhibition area, etc. on the second floor, there is children's science exhibition area and walking into Xing'anling exhibition area on the third floor, and there is youth science studio on the second floor and a half! After the experiment, the works can still be taken home. There are many exhibits and performances in each exhibition area. There are rolling balls, robots and other exhibits in the machinery exhibition area, Brahma tower, parabola and other exhibits in the mathematics exhibition area, robot performances in the nine o'clock machinery exhibition area, and the robots at the door are more interesting! You touch its left hand and it says, 'Hello!' You touch your right hand and it says, 'bye!' Touch both hands, 'hand itch' head can turn!!
This is the science and Technology Museum of Heilongjiang Province. Interesting scientific activities_ 200 words in science class, the science teacher asked us to find the snail and raise it.
We came to the campus to look for snails. The students looked around and looked around. They were all looking for snails seriously. I ran to a piece of grass and looked for it with wide eyes. After a long time, I finally found a snail under a withered leaf. I'm very happy. The little snail has a big shell on his back. This should be his' house '! At this time, some students have found many. I said to myself: 'come on'! So I began to look carefully again. I've been looking for it for a long time and haven't found it. At this time, xunzihan in the back also found many snails. Once again, I made up my mind to find the snail. I searched and searched and finally found two. I was very happy, so I competed with the snails I found. I observed carefully: a snail's head didn't stick out. After waiting for a while, the snail finally stretched out its head, but was frightened by my yelling.
Looking at the two snails, I smiled happily. If I were a scientist_ If I were a scientist, I would invent many things and contribute to mankind.
If I were a scientist, I would make smoking cessation tea. Because my father likes smoking and drinking tea, I will make a kind of smoking cessation tea. When my father makes tea, he secretly puts the smoking cessation tea in it. After my father drinks tea, smoking will be tasteless, so my father won't smoke again.
If I were a scientist, I would invent a highly nutritious food, so that people can eat without eating for several weeks, so that people don't often buy food. Then there will be no hungry people in the world.
If I were a scientist, I would invent a universal medicine that can cure any disease in the world and make everyone in the world no longer suffer from disease and pain. If bad people take this medicine, they will become kind-hearted people.
Now we should study hard.
Five knowledge and Science in Wenshang County_ 200 words students, have you heard that a cup full of water can put a hundred paper clips? Let me tell you!
On Saturday, I did a small experiment at home. The materials were: 100 paper clips and a glass of water. I'd like to try how many paper clips can I put in a glass of water? I picked up a paper clip and threw it into the water, two, three, four & hellip& hellip; One by one. The newspaper says that there can be a hundred paper clips in the water. It's incredible! I don't believe it. Do you believe it? A hundred paper clips were all thrown into the water, but the water didn't move at all. What's going on? It turned out that the paper clip was very light and floated on the water. The power in the water was too small. Even if you put a thousand, there was no problem.
Do you understand this knowledge? Science is also very particular. There is more knowledge, waiting for you to explore together!
Zhou Xinyi, fourth grade of Lianxi primary school in Pudong New Area, I'm a little scientist_ 200 words' look, sister, look what I found! '
As my brother shouted, I hurried to the balcony.
I saw my brother put a needle into the stem of a plant, and water soon came out of the place where it was pierced.
'sister, this is the blood of plants. ' Said the younger brother. I replied, 'it should be. Let's do an experiment and listen to the science teacher. The stem is the blood vessel of a plant. Let's see if the other place will bleed. " With that, we started to do it. I put the needle into the leaf. The leaf broke, but there was no bleeding. My brother stuck the needle into the petals, but there was no bleeding. It seems that only sticking on the stem will bleed!
The experiment is successful! We have proved that the stem of a plant is the blood vessel of a plant! We all cheered with joy.
'what's so happy?' Grandpa asked with a smile. We scrambled to answer: 'we proved that the blood vessels of plants are on the stem!' Oh? You prove it. " We did the experiment again. Grandpa immediately smiled: 'what a clever ghost. When they grow up, they are all little scientists! " We listened and smiled sweetly. If I were a scientist_ 200 words if I were a scientist, I would make an 'umbrella' outside the earth. If some unknown planets fly to the earth, the umbrella I made will bounce the planet back into space. It can also bounce the light emitted by the sun that is harmful to human beings back to the sun, and the light that is not harmful to human beings can be emitted.
If I were a scientist, I would make a 'small earth' next to the earth. The flowers, plants and trees in the small earth are flourishing. But how can we enter the small earth? Don't worry, because I have long made an elevator on the road from the earth to the small earth. Its outer layer is glass, which can release oxygen and absorb carbon dioxide. In this way, there will be many fewer people on the earth.
If I were a scientist, I would clone and clone the extinct animals. First, I clone genes, then organs, and finally the body. Gradually, the extinct animals will grow.
If I were a scientist & hellip& hellip; Pay attention to science everywhere_ 200 words dear leaders and teachers. Dear students, good morning! The title of my speech is "pay attention to science everywhere".
The world we live in is mysterious and interesting. We need to explore its mysteries and uncover its true colors. From life to science, let science return to life. Scientific knowledge is an important part of scientific literacy. Scientific inquiry is a more scientific way for us to obtain knowledge, which can enable us to obtain a deeper understanding of science, scientific concepts and things. Science and technology is the primary productive force. Science is everywhere in life. Science always affects and changes our life; After entering the 21st century, only by mastering and making good use of science and technology can we enter a new era of development. Science and technology have already deeply penetrated into our lives and become one. Science and technology is accelerating. I don't know where it will take us. Microsoft has a famous saying: Microsoft's only constant is change! So is the world.
Newton was hit by an apple tree and discovered gravity.
Chongqing Bachuan middle school grade one: Shao Ting, if I were a scientist_ If I were a scientist, I would like to invent a machine to suck white garbage into the machine. In a moment, new garbage bags will come out of the outlet of the machine, which will save garbage bags and will not pollute our environment.
If I were a scientist, I would like to invent a pen. As long as you write wrong words, it will be called wrong and wrong. In this way, you can get rid of the habit of writing wrong words.
If I were a scientist, I would like to invent a blackboard eraser. As long as it touches the blackboard, the words on the blackboard will disappear immediately, and the teacher will no longer be polluted by dust.
If I were a scientist, I would like to invent a color pen. As long as I gently touch the white paper, the white paper will become another color, and the students will draw pictures quickly.
I still have many inventions. If I really become a scientist, I will do my best to bring more convenience to mankind, benefit mankind and the earth. Science is wonderful_ 200 words I saw a news in the newspaper: a man became a woman after surgery. Curious, I asked my mother: how can a man become a woman? Will her voice become more beautiful after becoming a woman? And will you have a beard? My mother said, 'my mother doesn't read much and doesn't understand much, so you should study hard now. In the future, you will be better than my mother and understand everything.'
I think it's amazing. In the blink of an eye, the old hen becomes a duck. With the development of science, many impossible things will happen. Just like the videophone being installed in our community these days, I don't understand. It's strange that they can hear each other thousands of miles apart. Now, it's even more strange to let them meet! In addition, the wind, sunlight and waves can light up our electric lights. Moreover, human beings have climbed to the moon, and our Chinese uncle Yang Liwei can go to heaven. Recently, I heard that the human genetic code is about to be decrypted. It's really strange,
Scientific knowledge is really interesting. I really like scientific knowledge.
[how primary school students write a diary] a person selectively and truly records his things, feelings and experiences in daily work, study and life. This is a diary. Keeping a diary can accumulate knowledge, life experience and writing materials; It helps to cultivate the ability of observation, understanding and expression; It helps a person to record his things, feelings and experiences in daily work, study and life selectively and truly. This is a diary. Diaries are generally divided into life diaries, observation diaries and casual diaries. Life diary. Life diary is to selectively record your daily life, study and work. To write a good life diary, we must pay attention to the following problems: (1) the content should be true. Life diary is a real record of one's own experience, and it can only be checked if the content is true