I really want to be a scientist, because scientists can make great contributions to mankind.
If I were a scientist, I would make a micro robot. Although this robot is only half the size of a coin. Although he is small, he is of great use! It can enter the human body and suck the tumor in the human body.
The dean of a big hospital came to me and said, "There is a strange patient in my hospital. The patient said he had something in his nose. I saw a big tumor. I read about your invention in the newspaper. So I came to you to treat this patient with your invention-micro-robot. I used the remote control to drill into the patient's nostrils. I pressed the yellow button again and the robot began to work. It can be clearly seen from the display screen that there is a needle-like little thing on the right side of the robot body, which is the tumor eliminator. The robot is already working, and the tumor is gradually shrinking ... and then shrinking ... Ah, it worked! I was so excited that I almost cried. Yes, I stayed up under the lamp for many nights and wrote many experimental papers to make this robot! I pressed the red button again, and the robot came out of the patient's nasal cavity smoothly, and it was intact.
"Does it hurt?" I asked. The patient replied, "It doesn't hurt at all." I am also very excited to see him so happy.
Sixth grade scientific composition 300 words 2 There are four classes on Sunday, and the teacher brought two pieces of glass. A large bottle. A pack of straws. . . . . . Waiting for the experiment to come to the classroom.
Everyone is very excited. Looking forward to the arrival of the experiment, when the teacher said to do the experiment after doing eye exercises, the classroom suddenly became active. The theme of this experiment is to measure our vital capacity. Is to try to inhale once and then exhale as much as possible. It's our vital capacity. We all know how to do it. So I began to work actively. Because time is short, the teacher filled the bottle with water, covered it with glass to prevent water from flowing out, then turned the bottle upside down, put it in a jar filled with water, took the glass away, and asked a student to put a straw in his mouth and try his best to exhale gas. The teacher chooses ten people at a time and looks at these students on the stage. They all puffed their cheeks and blew hard, and their faces flushed. We are really worried about them off stage. The experimental results will come out soon, the maximum vital capacity 1450.
Although the teacher didn't let me go on stage to do the experiment, I was still very happy, because I learned that the level of people's vital capacity has a lot to do with their physique.
I really want to be a scientist, but scientists can also invent practical things. Serving people makes our life very convenient.
If I become a scientist, I want to invent a house called "Gravity House". In this room, people can jump high without gravity. Can't say there is no gravity at all. By rights, gravity still exists. If there is no gravity, it will be much more troublesome for people to stop in mid-air. Its gravity is still a little.
If I become a scientist, I will invent a kind of warm clothes, which can change the temperature of clothes from hot weather to cold weather. You can also change the shape, so that people are not monotonous to wear. In this way, we can only wear one coat You can save money and buy more coats, which are not monotonous and warm to wear.
If I want to invent a machine to eliminate fatigue after I become a scientist. This machine can make people's fatigue disappear without a trace. But may there be side effects when this machine is invented? Can not be used for a long time, it is not good for your health.
If I really become an excellent scientist, what I said can still be realized. If I don't become another scientist, the consequences can be imagined. I will study hard now and become an excellent scientist when I grow up!
In 20xx, I became a scientist. My proudest invention is the time machine. Just sit on the time machine and say where you want to go, and it will take you there immediately. This time machine is in the museum, but not everyone can sit on it. Only good people are qualified. I have never experienced the time machine since I invented it, but today I decided to experience it.
On the time machine, I decided to go to the Journey to the West. I only heard a whoosh, and I'll be there soon. The time machine asked softly, "How many hours do you want to play?" I replied, "Well, four hours." "Well, then I'll send you back to the real world." Say that finish, the time machine is gone.
I play around in this strange age. Suddenly, a wild boar came running from a distance. I quickly climbed a small tree nearby and frightened it with words. But it didn't buy it. It banged its head against the tree desperately. I shouted. At this moment, a monkey flew down from the sky. It turned out to be the Monkey King, the Great Sage of Qitian. I saw the Monkey King took out his golden cudgel and shook it twice, and the wild boar lay on the ground. I quickly thanked him, and the Monkey King nodded twice and flew away. No sooner had the Monkey King left than the time machine appeared, and I reluctantly returned to the real world.
Today, Xiaoshan Daily reporter Crystal invited an expert to our class. His name is Mr. Shen, and he can do magic. We are all curious and can't wait to see what wonderful activities he has brought.
Teacher Shen took out a light bulb first. It is strange that the light bulb can shine in his hand, but it won't shine in ours. The teacher told us that this is not magic, but science. We are all attracted and feel so interesting!
Then, Mr. Shen released some pictures of eyes on the big screen, so that everyone could guess whose eyes they were. The students raised their hands to speak, including the eyes of pythons, birds and blue whales. Everyone guessed right.
Next, the teacher taught us to do an interesting experiment, using a piece of gauze, a small bottle, a beaker and a cowhide tendon. First pour the water from the beaker into the small bottle, then wrap it with gauze, and then tie it tightly with cowhide tendons. At this time, I turned the small bottle upside down and found that the water could not be poured out. The teacher said that this is related to the surface tension of water, just like the ball blocking the hole of gauze.
The last experiment is to pour red, yellow and blue into a bottle filled with water. After pouring in red and blue, I found it was still blue. Pour in yellow again and find that yellow floats on blue. The teacher told us that this is related to the density of water.
Through these interesting scientific activities, I think I have gained a lot of scientific knowledge.
The sixth grade scientific composition is about 300 words and 60 grams. You will ask strangely; The schoolbag is made of glass. What if it breaks down? Don't worry, this kind of glass is made of special material and won't be crushed. It can bear heavy things, and dozens of people will not break if they press on it together.
In addition, there is a function board on the top of the bag. This board records the names of all the books in your bag and has the function of lifting. Click "Shang" and the title of the book, and the book will jump out by itself. Click "Put Down" and all the books that are no longer in the bag will not go in by themselves.
This kind of schoolbag has no strap, and there is a lot of glue on the glass on the back of the schoolbag. It can distinguish the stripes of the master's quilt clearly and see the back of the school director firmly. If you want to put it down, just touch the pattern in front and the bag will fall into its place.
The pattern on the schoolbag plays a very important role. If someone steals a schoolbag, the pattern on the schoolbag will immediately make a loud sound and call the police until it reaches the schoolbag or the owner. Of course, the pattern on the schoolbag can be chosen at will.
How about this schoolbag? Does it taste good？ I believe that once this schoolbag is put on the market, some people will like it.
I really want to be a scientist! If I become a scientist, I must develop a pill that makes people unite and love. Because there are still wars in some places, people keep researching advanced weapons and conducting underground nuclear tests for their own interests, which is very harmful to the earth, and many experimental bases have to cut down many trees. So, I want people to take this pill, stop fighting, unite and trust each other, so there will be no more wars.
I also want to develop an environmentally friendly gun. Its function is to subdue environmental killers such as earthquakes, and it will make flowers bloom more beautifully and trees grow more luxuriantly. They can inhale more carbon dioxide and release more oxygen. If those animals lack unprotected biological chains, I will imitate genes and make more.
I also want to make some pills for immortality, so that those respectable people can take them and make contributions to mankind forever. People who don't do their jobs die, so they don't harm people anymore.
I also want to make some magical robots, let them serve mankind, and let people live a better life by going up a storey still higher.
Finally, I hope people have a loyal heart, be friendly to others, and there will be no betrayal and no harm.
I believe that I have studied hard since I was a child and I can be a scientist when I grow up. I can also contribute to mankind and make the world a better and more United place. Let's work together!