我用颤抖的手拿着滴管，小心翼翼地滴出了两滴水。“啊！成功了！”我发出了一声欢呼。到底发生了什么？让我们一起来看看吧！
I held the dropper with trembling hands and carefully dripped out two drops of water. Ah! I succeeded! "I let out a cheer. What exactly happened? Let's take a look together!
这天，张老师拿着牙签、瓶子、滴管和硬币走进教室，看来要做实验了。“老师今天做什么实验？”一个同学开门见山道。“今天，我们来探索牙签的秘密！”我们都疑惑不解，于是都讨论了起来。“同学们，我现在就给大家发实验工具，你们照着屏幕上的步骤做。”
On that day, Teacher Zhang walked into the classroom with a toothpick, bottle, dropper, and coin, indicating that he was about to conduct an experiment. What experiment is the teacher doing today? "A classmate went straight to the point. Today, let's explore the secret of toothpicks! "We were all puzzled and started discussing. Classmates, I will send you the experimental tools now. Follow the steps on the screen作文吧 Www.ZuoWenBa.Net
了解实验步骤后，我明白了：先将牙签掰到一定的角度后，再将它放在瓶口上，然后在牙签上放一枚硬币，用滴管在牙签断裂处滴水，硬币就掉下去了。我想：这不很简单吗？小儿科。但实际做起来却异常困难。我做第一步就出了问题：要么把牙签掰断了，要么就是掰歪了。只见许多“不合格”的牙签躺在桌上，看起来很是绝望。终于，这一次，我找准中心点，不敢直视地用力一掰—我的目光渐渐停留在断裂处。啊！不偏不倚，终于掰了一个完美的，并将它放在了瓶口上，我深深地舒了一口气。
After understanding the experimental steps, I understood: first bend the toothpick to a certain angle, then place it on the bottle mouth, and then place a coin on the toothpick. Use a dropper to drip water at the broken part of the toothpick, and the coin will fall off. I think: Isn't this very simple? Pediatrics. But in reality, it is extremely difficult to do. I had a problem with the first step: either I broke the toothpick or it was crooked. I saw many 'unqualified' toothpicks lying on the table, looking very desperate. Finally, this time, I found the center point and didn't dare to look directly at it as I forcefully broke it - my gaze gradually lingered on the fracture. Ah。 Without bias, I finally broke into a perfect one and placed it on the bottle mouth, and I breathed a deep sigh of relief.
接下来就是放硬币了。我拿着硬币，不敢有一丝懈怠，将它稳稳地放在了牙签中部上。加油！离成功不远了！我暗暗地鼓励自己。最后这一步才是关键！要不然前面的努力都白费了。我拿着滴管，吸水，随后迅速地移动到牙签断裂处。我仔细地观察着，一秒，两秒……一滴，两滴……我看到了！牙签慢慢地舒展着它的身躯，最终移出硬币的边缘。只听一声脆响，硬币稳稳地落在了下面。“啊！成功了！”我十分激动，遮掩不住心中的喜悦，手舞足蹈起来。
The next step is to put in coins. I held the coin and didn't dare to slack off, so I placed it steadily in the middle of the toothpick. Come on! Success is not far away! I secretly encouraged myself. The final step is the key! Otherwise, all the previous efforts would have been in vain. I held a dropper, absorbed water, and then quickly moved to the spot where the toothpick broke. I carefully observed, one second, two seconds... one drop, two drops... I saw it! The toothpick slowly stretched its body and finally moved out of the edge of the coin. With a crisp sound, the coin landed steadily below. Ah! I succeeded! "I was extremely excited, unable to conceal the joy in my heart, and began to dance with my hands and feet.
这是什么原理呢？原来，牙签由很多纤维组成，纤维之间有很多细小的缝隙，就像是很多细小的毛细管。当牙签的折口处和水接触后，水会浸润到缝隙当中，由于水的张力，牙签会慢慢张开角度，于是硬币悬空坠落。
What is the principle behind this? Originally, toothpicks were made up of many fibers, with many small gaps between the fibers, like many tiny capillaries. When the fold of the toothpick comes into contact with water, the water will soak into the gap. Due to the tension of the water, the toothpick will slowly open its angle, causing the coin to hang and fall.
小科学，大道理，今天这堂课让我受益匪浅，让我学到了更多的知识！明白了物理现象后面的科学道理。
Small science, big principles. Today's class has benefited me a lot and taught me more knowledge! Understand the scientific principles behind physical phenomena.