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The most interesting thing is to put an iron rod immersed in copper sulfate solution, this kind of scene is the first time I have seen it is so beautiful, so wonderful, as if it is a fairy tale, generally the entire iron plate is embedded with copper sulfate crystals.
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When I was in college, there was a course on nutrition and food hygiene, and I was very excited every time I did an experiment, because the teacher would prepare apples, tomatoes, turnips, pears, peaches and other foods for us, and we little gluttonous cats would always stuff a few pieces into our mouths when the teacher was not looking.
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There are a lot of fun things I have experienced in the laboratory, when I first started to learn chemistry when I was in school, I didn't understand anything, and it was useless to see some of the content explained in the book, and I still had to be taken to the laboratory by the teachers to understand the principle. For example, the teacher takes out a white object that resembles a small stone from a dark glass bottle. I dipped the surface with a dry towel and put it on the paper, and after a while the thing spontaneously combusted.
Actually, this is white phosphorus, because his ignition point is very low, and it is kerosene that is wiped off with a towel.
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When I was doing a chemistry experiment in high school, the chemistry teacher used sulfuric acid to do the experiment, and we all surrounded it curiously, but we were disappointed, there was a strange black lump of things in the beaker, and it still emitted a foul smell, we all ran away from the smell, and the beaker was still there after class, and we all stayed away, and no one dared to come forward.
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When we were doing organic chemistry experiments last semester, we did an experiment that I thought was very interesting, which was to extract a certain substance from green tea. You can see the process by which a liquid substance slowly turns into a solid. And then the display was all wafting with a very fragrant smell of matcha, and I think that was the most fun experiment I've ever done.
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I once did a chemistry experiment and introduced several unknown liquids into a beaker one after another, but it turned out to be a gel, and it was still colored, and I thought it was fun! But I haven't done that kind of experiment since, but I still remember it clearly!
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I'm a food science and safety student, and I remember one time when we were in the lab and we were making that ingredient, and then I remember we were making that edamame tofu, and we were thinking that there were other things that could be eaten, and it didn't feel like we were experimenting, we were making food. But it's more about inspecting the ingredients and quality of the food.
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Which of the common experiments in life have you done?
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A small river meanders through the front of the house, when I was a child, I heard adults say that you can catch fish with the leaves of a plant, and a few of our friends immediately went to experiment. When we found the leaves of this plant, crushed it and threw it into the creek, it didn't take long for small fish to float.
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The most interesting experiment I ever did, they said that snails melt when they encounter salt, and I wanted to see if that was true, and I was there one summer after it rained, and many snails climbed up the wall, and my brother and I went to catch two of them, sprinkled some salt, and I didn't expect the snails to melt in the salt.
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As a child, he was naughty and fried beer bottles with firecrackers. Take out an empty beer bottle, fill it with water, light the firecracker, and when the gunpowder is about to burn out, put the firecracker into the beer bottle filled with water, and then you will see that the beer bottle will snap and be **.
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My parents found the balloon and blew it into the sun for a while before the balloon exploded on its own, telling me that the gas was expanding at high temperatures and bursting the balloon. This is my parents accompanying me in my quest for new knowledge, so I think this experiment is the most interesting one.
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The most interesting experiment I've ever done is a small light bulb that I made. The operation process is simple and the success rate is high. Sometimes when there is a power outage in the dormitory, I don't have a candle, so I just take out one or two batteries, and my wires and small light bulbs can shine.
It's a little light, but it's also very interesting!
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Play**. 1. Stuff the silver-white gunpowder from the firecracker into the pistol shell, then plug the bullet, connect the lead, put it on the stool, and ignite it. Feeling in danger, he hid behind the door.
After the loud bang, the shells were shattered, and shrapnel embedded in stools, walls, and ceilings. The warhead is unharmed. 2. Use the ballpoint pen tip to remove the steel balls to blow out the fine flames produced by the candle flames, burn a hole in the glass shell of the small electric beads, and connect wires to the electric beads.
Firecracker gunpowder is loaded into electric beads and placed in a large bottle of gunpowder. The entire unit is buried in the earth. In the distance, a half-meter crater was blown --- ground with a dry battery connected ---.
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The most experiment I've ever done in my life is buying fresh vegetables and seeing how long they can stay at normal temperatures in the summer.
Then I found that vegetables do not grow yellow for long periods of time when they are not stored at normal temperatures, and the leaves wilt and some of them rot.
So now I'm doing a lot less experiments, once in a while.
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The most interesting experiment I've ever done is the belief that if you put in the effort, you will be recognized.
This idea turned out to be naïve!
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What happens when you put hydrated lime water in a glass bottle?
That's right, there will be a phenomenon of **, I did such an experiment when I was a child, of course, I put slaked lime into the bottle, and put the lid on it, of course, it really happened because of the temperature problem**, it scared me!
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There is boiler fried rice, eggs are eaten at the mouth of the bottle, and ants are moved.
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Here are some examples of common and interesting experiments:
Chemical experiments: such as synthesizing a certain liquid and a certain compound, observing chemical reactions, determining the properties of substances, etc. For example, acid-base neutralization experiments can be carried out for color changes, experiments for making soap, and so on.
Physical realities: such as measuring the mass of an object, measuring the density of an object, verifying the laws of physics, etc. For example, experiments to measure force with a spring dynamometer and a wavelength of light with a grating can be performed.
Biological experiments: such as observing cell structure, conducting biological identification, studying biological reactions, etc. For example, it is possible to observe plant cells under a microscope and perform experiments to extract DNA.
Engineering experiments: such as designing and fabricating simple mechanical devices, testing the properties of materials, etc. For example, experiments to design and fabricate simple circuits and experiments to test the strength of materials can be conducted.
Computer experiments: such as writing programs to solve problems, conducting network security tests, etc. For example, you can experiment with writing a simple game, conduct an experiment with network attack and defense, and so on.
These experiments not only help students consolidate their theoretical knowledge, but also develop practical skills, observation skills, and problem-solving skills.
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In fact, as long as you have a high-cons and curiosity, any experimental class is very interesting, such as the following.
1.Chemistry experiments: color flame experiments.
In this experiment, the teacher dissolves different metal salts in alcohol and then ignites the resulting solution. Each metal salt produces a different color of flame. Potassium salts produce purple color, sodium salts produce yellow, strontium salts produce red, copper salts produce green, etc.
Everyone sat in front of the experimental table, looking at the beautiful and brilliant colored flames, as if they were in a magical magical world, which was very interesting.
2.Physics experiments: frequency and sand experiments.
On a large vibrating platform, a layer of fine sand is placed and vibrated at different frequencies through the vibrating platform. As the frequency increases, you'll see the sand grains forming some stunning geometric patterns, such as circles, squares, and spirals. This experiment vividly illustrates the wonderful effects of vibrations and fluctuations, like magic, that arouses interest in trying different frequencies to produce more results.
3.Biology experiments: DNA extraction and gel electrophoresis.
In this experiment, we extract DNA from fruits or bacteria and observe the migration of DNA by gel electrophoresis technique. When we see DNA bands under the microscope, we create an exhilarating feeling, as if the mystery of life has been revealed. Let you really feel what is called a leaf and a world.
4.Computer Science Experiments: Mini Game Development.
We first need to learn a programming language and design and develop our own mini-games. A variety of fun games can be created, such as maze games, jumping games, or flying shooters. In the lab, with a lot of curiosity, watching the game I designed take shape little by little, from scratch, there is nothing more interesting than creating something out of nothing.
These specific lab lessons are not only interesting, but also vivid. Through our hands-on practice and observation, we gain a deeper understanding of the principles of science and technology, develop the ability to explore and solve problems, and lay a solid foundation for future study and career development.
Hope the above can help you!
In fact, there are not so many beautiful things about traveling, most of them are accompanied by boredom on the long-distance bus, sleepiness when arriving at the hostel, worrying about the itinerary for the next day, and reading some local historical and cultural background with sleepy eyes. But when I was away from home, I was most grateful to all the enthusiastic people who showed me the way, explained to me, and even generously donated money (helping to buy bus and subway tickets, etc.), so I later developed the habit of carrying chocolates with me, and when I met the help of enthusiastic people, I would give them a few chocolates in return, and at the moment they received them, I could see their faces full of surprise and joy, as well as a little pride in front of my companions, and I thought, "Giving Peach in Return" may be the best thing I have ever experienced in my travels.
The most memorable thing I have experienced is that my grandmother died when I was young, but because I was far away, I didn't see the last side of my grandmother, I was not sensible when I was young, and I didn't know the pain of my relatives leaving.
Once our company organized a team building, we went to Yunnan together, there was a special scenic spot in the tourist place, it was a viewing platform, the scenery was particularly beautiful, you can go up for free, but after going up, you have to pay 5 yuan to go down, because they said that if they want to go down, they must give the host some gifts, so it represents enthusiasm.
I didn't achieve some of my test subject scores, and I wanted to get the score required by this school, and I was very sad, and I felt that I encountered some difficult problems when I felt that I couldn't solve them, and I also felt a very helpless frustration.
Dreams, in short, are aspirations, the desire to achieve a goal or goal. In the process of struggling for it, difficulties and setbacks are inevitable, including various problems from family, life, and work, sometimes exhausted, and even want to give up for a while, but once you persevere, it is very powerful! Nowadays, many successful people, who have not achieved success after working hard to support themselves in the spirit of perseverance that has experienced despair and failure. >>>More