-research report on the small topic of "saving electricity" 1. Ask questions: The school is vigorously promoting energy conservation, requiring each of our students to develop the awareness of energy conservation. Since the implementation of energy-saving education, students' awareness of energy-saving has been obviously strengthened. There was no one in the classroom before, the lights were on and the fans were on. The phenomenon that the tap is not tightened after running water has basically disappeared, and the phenomenon of water and electricity waste in the investigation activities we carried out last semester has also disappeared. Not only students but also teachers can save energy in an exemplary way. In the activities of the science interest group, Teacher Ma gave us a special lecture on "Energy Saving Tips". He talked about not only not wasting energy in life, but also learning to save energy. He talked about many ways to save water and electricity in life, which made me further understand that it is not enough to save energy without wasting energy, but also to learn to be frugal. I'm very interested in saving electricity by humidifying the towel on the lid of the rice cooker mentioned in his lecture. Does this trick work? I asked many classmates, but they didn't know or why. I asked Mr. Li, and he didn't know until he told me it was invalid. Just do an experiment! Yes, there are many suggestions on saving electricity in schools and newspapers, but they are not really effective. We are not particularly clear about this. I also found that in the energy-saving education carried out in schools, students' awareness of energy saving has been greatly improved, but few people really put it into action. I also want to test whether this measure is effective through experiments. Second, the establishment of the research group: In order to verify the energy-saving trick mentioned by Mr. Ma, we also want to prove that the method of "covering with wet rags can save electricity" is invalid. We hired Mr. Li as our instructor to verify whether this method is effective through two groups of comparative experiments. Teacher Li is very supportive of our research, guiding us to set up a research group on "Can you save electricity by covering with a wet rag", and specially formulated a research plan to test the effect of "Humidifying towels for cooking with rice cookers". We think that in this method mentioned by Teacher Ma, covering with a wet rag can save electricity, so can it be covered with a dry rag? So we decided to adopt the method of comparative experiment, namely: under normal circumstances; Cover with a dry rag; Cover it with a wet rag. After preparing all kinds of materials, we began to act. Three. Experimental Operation Experiment 1: Comparative experiment of electricity saving of rice cookers Date of record September 27th Location School experimental instructor, experimenters Shen, Yao Ningchong, etc. Recorder Shen's experimental content: Comparative experimental materials about whether the rice cooker covered with wet rag saves electricity: three rice cookers of the same model, stopwatch, electric meter, water, etc. Record the normal situation, cover it with a rag and a wet rag for the first time, 20 minutes, 19 minutes and 40 seconds, 19 minutes. In this experiment, three rice cookers of the same model work at the same time to test the working time. If the working hours are short, it can be proved that electricity can be saved. Experiment 2: Comparative experiment record date of electric kettle boiling water to save electricity September 27th Location School experiment instructor, experimenters Shen, Yao Ningchong, etc. Recorder Shen compared the experimental contents with experimental materials: a 1.500 watt electric kettle, stopwatch, water and other processes were recorded. Record the normal situation. The boiling time is 9 minutes, 32 seconds, 9 minutes, 02 seconds and 7 minutes. Especially the effect of covering with wet rag is more obvious. In this experiment, the working time is tested by the time required to boil the same volume of water under different conditions (no rag, dry rag and wet rag). If the working hours are short, it can be proved that electricity can be saved. Third, experimental analysis and conclusion. At first, we were a little skeptical about the trick of "covering with a rag can save electricity", but after doing it ourselves, we found that this trick taught by Teacher Ma is really clever and can really save electricity. If we take boiled water as an example, we can't calculate the electricity saved after covering it with a wet rag. Similarly, boiling a pot of boiling water and covering it with a wet rag can save 2 minutes and 32 seconds, that is to say, boiling a pot of boiling water can save 2.32/60* 1.5=0.058 kWh. Generally, my family will boil two pots of water a day. According to this calculation, 42.2 kwh of electricity can be saved in one year. Rice cookers are now used by most families. If every family adds a wet rag to the lid, there will be a lot of room to save electricity. There is still a lot of energy-saving space in our life. As long as we can work hard, we will be able to overcome the energy crisis, especially the power shortage. Fifth, attach a teacher-student experience to save electricity and teach you a trick. Instructor Shen, Class 6 (3), Jianshe Central Primary School, Xiuzhou District: The electricity is very useful. If you leave electricity in your life, you are in big trouble. But in life, we don't pay much attention to saving electricity, and the phenomenon of wasting electricity happens from time to time. In recent years, large-scale blackouts are a punishment for wasting electricity. It is easy to waste electricity in life, but difficult to save electricity. But I also have some tips about saving electricity. One Sunday, my mother asked me to cook. I thought: now I can show my talents. It's time for me to show my talents. I washed the rice, put it in the rice cooker, then put a proper amount of water, then covered the pot, and finally plugged it in, and everything was done. It suddenly occurred to me that the lid would be very hot when the rice was cooked, so I covered it with a wet towel. I sat by and waited. It is strange that my rice cooker usually takes 15 minutes to cook, but today it is so fast. It only took 12 minutes and 30 seconds to burn, and I couldn't find the reason after looking around. Suddenly I found the wet towel on the lid. Yes, it must be a wet towel. To prove my idea, I emptied the rice in the rice cooker, fished out the same amount of rice and cooked it again, but this time I didn't cover it with a wet towel ... it took 13 minutes. Haha, it's really a wet towel! If I put a wet towel every time I cook, I can save 30 seconds, three times a day, 365 days a year, and I can save more than 32,000 seconds (9. 1 hour). The power of the rice cooker is 1.5 kW, which can save 14 kWh a year! This number is not small! If every household can do this, the electricity saved that year is amazing! At dinner, I told my parents and grandma about this discovery. My mother smiled and said, "It's worth cooking another pot of rice. My children are willing to use their brains. Next time I cook, I will put wet towels. " Dad asked, "Why put a wet towel on it to save electricity?" Embarrassed, I said, "Then I don't know. Anyway, I figured it out. " Everyone laughed when she spoke. Grandma said and smiled, "You child …" Well, this method is good for me, so I should use it more in the future! Yao Ningchong: I was deeply impressed by the research on the small topic "This trick really works". In this experiment, such a magical phenomenon appeared. For cooking with boiling water, adding a wet rag to the pot cover can obviously save time. Boiling water for cooking is the most common thing in our life, but why haven't we found this power-saving trick yet? Now it seems that the power of science is really amazing! In fact, there are many energy-saving tips like this in our life. As long as you are a novice in life, you can find more energy-saving tips. At the same time, I also want to say to my family: "If we add a wet rag to the lid of the pot when we are cooking, we can save electricity as easily as blowing off dust." Why not? " Parents' comments: I am very supportive of children doing this experiment. Under the guidance of Mr. Li, he did the experiment at school and then went home to do it again to verify his results. Although he cooks two pots of rice at a time, which causes some waste, I think this waste is worthwhile. In the process of participating in small-scale research, children's scientific inquiry ability has been further developed. Children nowadays always try to solve problems by themselves. Teacher Li's comment: Shen has told me many times about this experiment, but to be honest, I don't understand whether the "wet rag on the cover" can save electricity, so I asked him to verify it through experiments in the form of small-scale research. In this small research process, I also found that Shen learned a more rigorous scientific research attitude. In order to better verify the role of "wet rag", he deliberately added a comparative experiment-cover with dry rag for comparison. The conclusion of the experiment is intuitive, and the data obtained from the experiment can explain the problem well, which also makes these students understand this method. I think they will definitely use it often in their lives. In the research of small topics, students are not only allowed to find a conclusion or understand a scientific phenomenon, but also guided to participate in the research process and experience and explore in the process, which is more conducive to students' development. In addition, in the process of small-scale research, especially in rural schools, the cooperation of parents is very important. Shen's experiment was supported by his parents at home, and they studied with their children, which also ensured the success of this course.