The so-called "makers" are those who dare to think, innovate and fear authority. They don't always follow the rules, but dare to overthrow the routine life, like invention and creation, and are not afraid of fallacies. And our writing innovation interest class is just for these students who love invention and creation.
In my opinion, the real maker doesn't just stay in the lab all day and make a knowledgeable appearance, but can study some seemingly insignificant small problems in a monotonous life, so as to find the fun and sense of accomplishment of innovation. Innovation is not just a slogan, but a product of bold ideas and personal practice again and again. So, in fact, there are many makers around us!
Water Cut, Exploring the Secrets of Seed Growth, Steaming Ice ... In my spare time, I always do some small scientific experiments like this, and sometimes I write down my experimental steps and some feelings afterwards. I feel that I am not only doing experiments, but also being in close contact with nature and exploring the mysteries of science and innovation in the vast universe.
"Too superficial, I don't know anything." Of course, as a qualified maker, it is not enough to know a little written theoretical knowledge. You must create it yourself, so that you can understand the principles and mysteries. Last weekend, my classmates and I jointly designed a portable strong light small desk lamp. Although our knowledge is limited, its circuit is broken and it is easy to leak electricity, but this small desk lamp is the first product we designed together, and its significance is not light to us.
The first person who put forward this interesting idea was my deskmate in my interest class. She is usually a very thoughtful person who once designed a clay sundial herself. At that time, after hearing this idea, we were all very excited and immediately collected materials to implement it. Unfortunately, it's probably because we are too impatient. The result of our first experiment was not as exquisite as we thought: the cover of the desk lamp collapsed and the battery could not be connected.
However, we are not discouraged, but continue to experiment to preserve its advantages and avoid its disadvantages. Finally, we finally worked out a satisfactory plan. We made a simple bracket for the cover of the desk lamp, and then spliced it with various kinds of clay, so that it won't collapse in when it is used. As for the circuit problem, after puzzling, we asked the science teacher to help us plan. We are very satisfied with the result of this experiment. Although this desk lamp is still on and off, it is a precious treasure in our life.
After the design of the desk lamp, our respective innovative notes turned a new page full of brilliance. It seems that we can all see the bright light reflected by it, which is not only the light itself, but also the light full of our efforts and sweat, which is the light of our dreams!
Sixth grade scientific composition for 2 days! How can four small cylindrical paper tubes bear the weight of more than ten kilograms? But it really can. In Chinese class today, our group did this seemingly incredible experiment.
The experiment is simple. First, I took out a piece of A4 paper, divided it into four parts on average, and made four paper tubes with the same size from each rectangular piece of paper. Then everyone sticks the paper tubes one by one and makes them stand upright on the table. At this time, everyone is already eager to try. I had an epiphany and flew out a series of books on Chinese subjects. Everyone took out their books one after another, and the experiment began! I carefully put the book on four paper tubes, hey! Steady! Then everyone put the books one by one, five ... ten ... fifteen ... twenty ... Oh, my God! There are more and more books. I opened my mouth and looked at the small column below. I didn't even want to fall. Our experiment attracted students' dumbfounded expressions, but there seems to be 100 books in the following column, and the teacher was also amused by our group's experiment. The number of books has increased to thirty, and my mood is even more tense. How many books can I put? When will it fall? Too late to think about it, "pa!" The pillar fell down. Everybody count the books, forty-five books! I remember that when moving books, it took two male students to move forty books. It's not easy to move small pillars! When I got home, I weighed myself. A book weighs about 400 grams, which means that the small paper tube bears the weight of 18 kg!
But why can a small paper tube bear such a heavy weight? It turns out that the side of the paper tube is curved and the curved surface is arched. When the arch is compressed, it will transfer the force to the adjacent parts to resist the force from the arch column, and it can bear greater pressure. It turns out that the small paper tube has done so many things invisibly!
In fact, science is everywhere. As long as we observe carefully and think seriously with the eyes of discovering science, maybe you will become a scientist admired by thousands of people in Qian Qian in the future!
The sixth grade scientific composition 3 has entered 2 1 century. With the rapid development of science and technology, great changes have taken place in people's lives. Streets and alleys are full of all kinds of cars; Farmers use advanced production tools and various chemicals to make crops grow rapidly; The train in the railway station changed from the original steam engine to electricity, and now the train is much faster than the previous train; Every household has a TV, refrigerator and other electrical appliances. However, our mother earth did suffer serious damage.
About 300 million to 500 million years ago, the climate on the earth became warm and humid. At that time, there were many plants on the earth, covering most of the earth's ground, forming a big forest with many animals in it. However, nowadays, people cut down a lot of trees and use a lot of chemicals, resulting in a serious reduction of forest area, more and more desertification land and serious soil erosion; Many animals are displaced and often suffer from acid rain.
Now the industry is very developed, and many countries have various factories, such as steel mills, electric furnace factories, boiler factories, instrument factories, garages and so on. Although these factories have brought us a lot of economic benefits and convenience in life, there are huge hidden dangers behind the seemingly benefits. The exhaust gas from the factory pollutes the surrounding environment and destroys the atmosphere. It is ultraviolet rays that directly hit the earth, causing the global temperature to rise and the Antarctic iceberg to melt. If this destruction continues, Mother Earth will disappear one day, and mankind will die with it.
Although mankind has now realized the serious crisis, there are still many people who are destroying the environment. I think we should plant more trees, travel in an environmentally friendly way, such as bicycles and buses, and recycle them. I believe that in the near future, our mother earth will be more beautiful!
There is a lovely little doll on the windowsill of my house, with a small paper pocket hanging on its chest. Don't look down on this little doll, let alone laugh at the paper bag that can change color! On cloudy days, the pockets turn pink, and on sunny days, the paper pockets turn light blue again. But I am not a magician, and this little doll is not a great trick. This is just a small-scale production of mine doll rain gauge.
In a science and technology month activity, the school called on each of us to make a small production. I went home and looked through a lot of information, and finally found the ideal small production of "doll's eye rain gauge". First, I dug out some small pieces of cloth from the closet and pulled out a mass of white cotton. With the help of * *, I made a little doll, and I drew beautiful facial features for it. After careful study, it is still quite good! Then it's time to make the main part of the rain gauge-the paper pocket. I ran around and finally found some chemical raw materials, cobalt dioxide, with the help of my teacher.
I cut the white paper into a small pocket first, then pour the cobalt dioxide into a bowl and boil it with water. The solution is red. I will soak the paper in the solution and take it out to dry. After trying for a few days, the weather did change, but my rain gauge didn't change at all. After repeated observation, I finally found that I didn't use absorbent paper, and the small pocket was not dry, but was dried by the sun. I am determined to make another one.
I found a piece of absorbent paper, cut a small pocket as it is, soaked it in the solution, and then put it on a plastic board to dry. Gradually, the small pocket turned light blue, and the sky was really clear at this time. The next day, I watched the weather first. Well, it's cloudy. I looked at the small pocket hanging on the doll and it turned pink. "Oh, it worked! Success! " I jumped for joy.
Why do small pockets change color? It turns out that cobalt dioxide contains red and blue pigments. Blue is rejected when the air in the sky is wet, and red is rejected when the air in the sky is dry. I looked at this small production made by myself and couldn't help admiring: "Science is wonderful!" "
If I were a scientist, I would develop a cheap spacesuit, which can automatically adjust the temperature at any time, so that people will still be very cool in summer and warm as spring in winter. As for why it's called a spacesuit, it's because after wearing it, you can walk in a place without gravity as usual.
If I were a scientist, I would make a high-nutrition product that won't rot and has no harmful substances. People can eat once and not eat for more than ten days, so people don't have to worry about food, and there will be no hungry people in the world.
If I were a scientist, I would invent a cosmic hut. It's so beautiful that we can go to the place we like to live at any time. It can not only shelter us from the wind and rain, but also defend against earthquakes. From then on, disasters can't hurt human beings.
If I were a scientist, I would make a three-purpose car that can travel in water, land and air. If you want to go into the sea, press the blue button; If you want to go to heaven, press the white button; If you want to go by land, press the brown button. Can be clearly separated, very convenient.
If my wish can come true, how wonderful the world will be! I hope scientists all over the world can work together with me to make this wish come true quickly, and then the world will add another beautiful scenery!