Lemon water with salt and sugar can replenish electrolytes. Lemon water with sugar and salt can form electrolyte water. In fact, electrolytes refer to compounds that can produce free ions in an aqueous solution or in a molten state and conduct electricity. substances that conduct electricity in a solution. Therefore, simple salt water is considered electrolytic water. Add salt and sugar to water to replenish electrolytes and replenish energy at the same time.
Write an essay about a small salt-making experiment
This is a typical electrolysis problem. The order of anion placement is: sulfide ion > iodide ion > bromide ion > chloride ion >. hydroxide ion > sulfate ions > fluoride ions, so if you are electrolyzing pure water, the discharge order of OH should be after the chloride ions, so as you said, chlorine gas will be serproduced at the anode (correction, the electrode should become the anode during the electrolysis process)< /p>
1. A 500 word essay on first salt making experience
Hello! I experienced many firsts, the first time I stood on the podium, the first time I was criticized by a teacher, and the first time I was late for school.
But what I still remember most is the first time I cooked! I remember that day, I came home and found the house was empty, and my stomach was already singing "Empty City Strategy". I searched the house and found nothing delicious, just a few vegetables on the floor. So I decided to make something myself to fill my stomach first! what to do? After much thought, I decided to make scrambled eggs with tomatoes.
I was excited about my “genius” idea. I followed the examplee from my mother and I first carefully selected four large round eggs and a tomato from the refrigerator.
I found a bowl and hit the egg on it. However, the egg was still full belly and not broken at all. It seemed as if he was proudly telling me: “Humph, you want. to hit me? No way ! » “So I hit the egg hard against the bowl again. I didn't expect the egg juice to splash all over me. It's so easy to watch my mom do this, but it's so hard when it's my turn! After cleaning, I tried cracking an egg again with moderate force, ah, it worked! I break the eggs one by one into the bowl. Then cut the tomatoes, stir in the eggs and sprinkle with green onions and salt.
I lit the fire and poured the oil. After the oil pan made a "sizzling" noise, I poured the egg fluid from a distance, I was scared to death, fearing the oil would do it. burstin my hands. So far, so good! It’s okay, no problem! My palms are sweaty.
I breathed a sigh of relief! After a while, small milky white bubbles appeared around the eggs. I turned the eggs over, then poured in the tomatoes and fried them for a while. A dish had just come out of the oven, and I was eating it, I was eating the dish that had been prepared after a lot of work.
My mind is filled with scenes of my mother cooking. How difficult it is for my mother.
2. How to write a composition about "Magic Salt Water""Magic Salt Water" As soon as class started today, Master Zhou carefully took out a well-wrapped item from a bag. Come on, it's a beaker, an egg, a packet of salt, a wooden chopstick and a spoon. I can't help but wonder: are we going to do an experiment today? As I expected, I was going to do a little experimente of eggs floating in salt water. However, I raised a small question mark: eggs usually sink as soon as they are put in water. Could it be that this salt water has some magic? power? ? ah! The wonderful experience begins! Teacher Zhou asked me to take a glass of water first, and then put the heavy eggs into the clean water. The eggs immediately sank to the bottom of the water. Then Professor Zhou added four spoons of salt to the clean water. was now cloudy. The eggs inside were looming. A classmate said mischievously: "These eggs almost turn into salted eggs!" » Professor Zhou continued to stir in the water with wooden chopsticks. Then Master Zhou took out the egg and put it in the salt water again. I kept beating, afraid it would sink and never come back up. My classmates also looked at him with wide eyes, "Ah!" "I couldn'tstop myself from screaming. As soon as Master Zhou put it down, the egg floated as if there was no gravity on the moon. The students were also surprised. It turned out that the density of salt water is greater than that of the egg, so the egg floated. Science is everywhere, if you look carefully. In fact, it is all around us...
3. How to write a journal of elementary school students' salt water experimental activities.Today my mother and I did a little experiment together. The name of the experiment is “Eggs Floating in Salt Water.”
First we took out an iron cup, took a cup of warm water, and then put a raw egg in it. I discovered that the egg had sunk to the bottom of the water. I thought: how can I make the egg float? My mother saw the confusion on my face and said with a smile, "Put some salt in the water and the eggs will stand up." » So we started to put salt in the iron cupr. One spoon, two spoons, three spoons, I put the salt and mixed it in the water with chopsticks. Luckily it was lukewarm water, it would have melted very slowly. A lot of salt has been added, but the eggs don't react at all. Mom said, “No, you have to add salt.” » Then we continued adding salt to the water. Eventually, the egg finally floated.
I asked my mother: "Why can eggs float in smoky water?" » My mother replied, “Because the density of salt water is greater than the density of eggs, so eggs can float in salt water.
I was very happy, because this magical science experiment taught me another interesting scientific knowledge.
4. A short sample essay on a science experiment will sufficeWow! Wow······! "Huh? What is this sound? Where does this sound come from? It comes from classes 5 and 7 of Luohe Primary School, that is, from notre class. You may still ask yourself, “Why is it so vivid?” Listen to me slowly. In the two composition classes this afternoon, our Chinese teacher, Master Zhou, said he would take us to experiment. Hearing this news, we were very happy. Some students even shouted: "Master!! Long live the teacher!" And me? I was even more excited. I couldn't wait to find out what the experience was like. I asked the teacher, but the teacher couldn't say a word. We don't wish to reveal it, but our curiosity is growing. Look ! here we go! The teacher took out a bag of salt, a spoon, a raw egg and a transparent cup. Then the teacher said: "If you put the raw egg in a cup with water, add the appropriate salt, then stir vigorously until the salt is obtained. dissolves. » Now the egg can float on the surface. " Really ? We were all eager to try. The professor first used a transparent cup to collect the water, half hot water and half cold water, and then gently put the eggs into it to prevent the broken eggs from splashing to the bottom. from the cup like bullets. Then he used I took a spoonful of salt with a spoon and put it in. The whole class opened their eyes wide without blinking, afraid we would miss something. Suddenly the salt spread. in all directions, thinking of the clouds and mist of the goddess descending to earth. The water mixed. The professor put another spoonful of salt in it and stirred it, but the egg still couldn't float. I had no choice but to add more salt. Just in case, the professor put two spoons of salt and stirred. After a while, the eggs floated! It was the group experiment turn and we all came up with ideas. I took Wu Feihan's cup, Irushed to the toilet, got some cold water, then went to the tea stove room, got some hot water and went back. in class. The classmates couldn't wait and returned to class. Ah! The egg floats! The professor said that when the density of water is greater than the density of eggs, the eggs float. What an interesting experience.
5. Real Experience in Salt Water and Eggs Science Experiment EssaySalt Water and Eggs Science Experiment Today, after finishing my homework, I don't had nothing to do, so I did an experiment with eggs floating in water. . First I prepared experimental materials: a transparent glass cup, a spoon, raw eggs and a large pot of salt. I put half a cup of water into the cup first, then put the eggs into the cup. I saw the eggs suddenly. They sank to the bottom of the cup.Then I put some salt in the cup and stirred it carefully to speed up the dissolution of the salt in the water. I stirred and stirred, and suddenly found that the egg was gone. The bottom of the cup, but after a while the egg sank again. At that time I put salt in the cup, when I was about to put it, my mother came back when she saw the scene spread over our. table, she immediately started nagging: "Look, you're making trouble again." I don't do serious things anymore. " "No, I'm doing an experiment on how to make eggs float. in water. » However, when my mother learned that this was the case, she quickly took a bag of fine salt and handed it out. I said, “Fine salt dissolves faster than coarse salt. » So I added a few spoons of fine salt. and I stirred it gently. The eggs really floated and even surfaced. I screamed with joy. I stood up: “The experiment was successful,the experiment was successful! " When I was dancing for joy, my mother asked me seriously and earnestly: "Do it! "Do you know why eggs float?" My mother's question made me happy. More than half the time, I was truly speechless and couldn't understand any meaning. But my mother “forgave” me and gave me time to look up. information and find the answer for myself. Later I found the answer on the Internet: When the weight of an object is greater than the buoyancy of water, the object sinks when the weight of the object is less than; Objects float when the water has a density. When we add salt to water, the density of water increases to a certain value, the density of water is equal to the weight of water. the egg, and the egg will float in the water; the density of the water is greater than the weight of the egg, and the egg will float on the surface. water in order to increase the density of the water, so that the egg floats on the surface. Move your handss and do experiments, using your brain, checking the information, you can really learn skills and gain knowledge.
6. How to write an essay on a small experimentThis morning, I came to class early, took out my homework and started working on it seriously. Halfway through writing, I saw Professor Wang wearing big and. small bags. Something seemed to surprise us and I was full of questions.
In class, Professor Wang called as usual. After the call, he mysteriously raised something and asked, "What is this?" »
Everyone said in unison: “It is. an egg. "Yes, we are going to do a little experiment today. When I heard that an experiment was going to be conducted, my whole body became excited, and the doubts in my heart were "resolved." The teacher then said : “Whoever can crush this egg with one hand will win aprice. »
Everyone raised their hands, almost all the boys. Unexpectedly, the teacher first invited a “little girl” – Chen Si. Chen Si “wrapped” the eggs with his hands, and then licked them harshly. But looking at her, it seemed like she wasn't using any strength. The teacher was encouraging her, but she couldn't break it, and then the “big guy” of our class – Wang Zhihua, entered the stage. . I saw him holding the egg and sucking it hard. Look, his face turned red and his hands were “vibrating” like a “generator”. You could see that he had used all his strength to suck the milk and couldn't squeeze it out. Regardless of everything, Yang Zhenhui rushed to take the egg, positioned himself, and squeezed it tightly. The whole person looked like a bow!
All three people tried, but no one could break it. Professor Wang asked: "Why, even if three people pinched him, they didn'tcouldn't break it? raised his hand. He said: "Because the egg is round, our strength is evenly distributed in each corner of the shell, so no one can crush it. » Everyone said yes after hearing this. Professor Wang said: “Many scientists have also used this principle. For example, the shape of the Sydney Grand Theater is round, which is beautiful and solid.
In this way, a small pleasant experience was achieved. It seems life is so wonderful!
7. The course of the experiment: the story of eggs in salt waterToday I did a very interesting little science experiment at home, which made me understand any object in water will be subject to buoyancy, and the greater the density of the water, the greater the buoyancy it will receive.
Under the direction of my father, I prepared the materials for the experiment: a large glass. , salt, spoon, eggs Step 1: I took the kettle, poured half a cup of water into the glass, then put the eggs into the water. The egg slowly sank to the bottom of the cup without moving .
Step 2: I put 5 spoons of salt successively. The eggs floated a little. I added 3 more spoons of salt successively. The egg moved from a horizontal position to a vertical position, and the area in contact with the bottom of the cup became smaller. Step 3: I took out the eggs and stirred the salt water with chopsticks. The salt at the bottom of the cup was almost melted. Then I put the eggs in. The eggs continued to float up and down, they stayed still. in the middle of the cup of water.
Step 4: Add 3 tablespoons of salt and the egg gradually rises to the surface of the water. The top of the egg comes out of the water from time to time. Press the egg with your fingers, release it. and the egg returns to the surface of the water. Why do thedo eggs float? I asked my father a question, and after listening to his answer, I finally understood. It happened like this: When the egg was first put into the water, because the density of the egg was greater than that of the water, the buoyant force on the egg was less than its own weight, so it will sink to the bottom; after adding salt, water dissolves the salt and the density of water increases when the density of salt water is equal. depending on the density of the egg, the egg will float in the middle of the water; continue to add salt, and when the density of the salt water is greater than that of the egg. When the density of the egg is high, the egg will float. above the salt water and the top of the egg will come out of the water.
Dad told me: Every object in water experiences a buoyant force. The magnitude of the pushing force is equal to the weight of the volume of water displaced by the object. This is the famous “Archimedes’ law”. ", also callede law of buoyancy. When I grew up and learned physics, I understood everything. I really hope to grow quickly and gain more scientific knowledge. When I grow up, I will definitely become a scientist and explore more scientific secrets in the magical world of science.