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An interesting experiment.
Volcanic eruptions", you must have seen it on TV, but have you ever seen it with your own eyes? I've seen a "volcanic eruption" once, but this is a "volcanic eruption" simulation experiment, and I did this experiment myself. Hey, "volcanic eruptions" are fun.
You can also contribute.
I was asked to bring a glass, a bottle of vinegar and a bottle of detergent, a packet of baking soda, and a newspaper. Start by pouring some baking soda into the cup, then pour in some detergent, and then put the newspaper under the glass.
The experiment was about to begin, I poured some vinegar into the cup, and the miracle soon happened, just now the bottle was just some baking soda and detergent, how could it be that it only took a few seconds to turn into foam? And it was just a little bit of foam, but now it continues to rise wildly, and after only a dozen seconds, it swarms up from the mouth of the glass, overflowing the mouth of the bottle and flowing onto the newspaper. At this point, I was excited and surprised, staring intently at the bubbles that floated up, for fear of missing any details.
After about 18 minutes, the bubble gradually disappeared again. Ha, this experiment is so fun and so interesting!
Why is that? I hurriedly grabbed the book and checked it, but there was not a word on the book, alas! I had no choice but to figure it out on my own.
Didn't Mr. Liu say in class: baking soda and vinegar will have a chemical reaction to produce a lot of foam, just like soda, shaking it will also produce some foam. So what does detergent do?
I couldn't figure it out even if I racked my brain.
In order to understand the mystery, I redid this experiment again and found that the reason why foam is crazy is because detergent plays a catalytic role. Isn't this similar to the principle of formation of pumice? This little experiment is really interesting.
Doing a small science experiment allowed me to understand the scientific principles while playing, and also exercised my ability to use my hands and brains, which is really the best of both worlds.
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In recent days, the bank has been stolen So, the police are looking for the thief everywhere, trying to catch the thief At this moment, a policeman found that there was a thief who was going to steal things from nearby residents, so he hurried up As soon as the thief saw the police, he fled But the effort paid off, and the thief was finally caught by the police!
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Pinch the eggs.
When students read the title of my essay, they will say, "How can you pinch an egg?" "Everyone knows that eggs have thin shells that break when touched.
Actually, there is a scientific truth in this! If you don't believe me, look down! It was "The World is Wonderful" that my father took me to the Chengcai Bookstore to buy.
As soon as I got home, I was busy watching, and suddenly I saw an interesting story that said, "A strong man can break bricks." But someone told him to pinch the egg, but Hercules couldn't break it.
I was skeptical and decided to give it a try.
When the opportunity finally came, one day my father bought back a bag of eggs, and I asked my mother for an egg for a small experiment. After much pleading, my mother finally agreed.
I first brought a bowl to prevent it from being crushed when pinched, and the yolks were scattered all over the floor. Then I put the egg in my hand and grabbed it, and at this moment, my heart was pounding, and my hands were full of sweat. The scene of the egg breaking seemed to appear in front of my eyes, and in order to figure out whether the egg could be crushed, I closed my eyes, squeezed my hands hard, and then waited for the sound of the egg breaking.
But to my surprise, when I opened my eyes, the egg was not broken, but I was still a little skeptical and ready to do another experiment. I put the egg in my hand again (this time with both hands), gritted my teeth, opened my eyes wide, and used all my strength to pinch the egg. But despite my best efforts, the egg was still safe and sound.
It was so annoying and surprising that I had to ask my father.
After listening to my words, my father smiled and said, "It's actually a scientific principle." Although the egg is very thin, it is oval, and when you pinch it4, it distributes all the force you exert evenly throughout the egg, so it can withstand a lot of force.
Some thin-shell buildings are built using this principle! "After listening to my father, I really believed the story in the book. Ah, the world is wonderful.
If you have any questions, please ask).
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