一节难忘的科学课

1、一节难忘的科学课-关于课堂的作文650字

那是一个星期五的上午，当第三节课的上课铃声响起时，我和同学们都回到了座位上。这时，科学老师抱着两盆植物急匆匆地走进教室，看来今天的科学课和植物有关呢!不过科学老师为什么要带两盆植物呢?我真好奇。

It was a Friday morning. When the ringtone of the third class rang, my classmates and I returned to the seat.At this time, the scientific teacher hurried into the classroom with two pots of plants. It seems that today's science courses are related to plants! But why should the scientific teacher bring two pots of plants? I am so curious.

“同学们好，”科学老师面带笑容，大声讲道，“今天的科学课我们来学习植物的嫁接。”一听到“嫁接”这个词，同学们立刻热火朝天地聊了起来。这时科学老师说：“同学们，请安静一下，谁能告诉我‘嫁接’这个词，是什么意思?”顿时教室里鸦雀无声，连一根针掉在地上的声音都能听见。

"Good classmates," the scientific teacher smiled and preached loudly, "Today's science class, we will learn the grafting of plants." When I heard the word "grafting", the students were immediately hot.Talking.At this time, the scientific teacher said, "Classmates, please be quiet, who can tell me the word 'grafting', what does it mean?" Suddenly the classroom was silent, and even the sound of a needle fell on the ground could be heard.

过了一会，同学们纷纷举起手来，老师点了几个同学起来回答，有的说：“一种植物在另一种植物生长的地方生长。”有的说：“在沙漠生长的植物被移植到树林里。”科学老师摇了摇头，大声说：“同学们，嫁接的意思就是把一段植物的茎接到另一株植物上进行繁殖，让它生长成不同的植物，同学们，你们听懂了没有?”我们异口同声说：“听懂了!”科学老师又说：“你们既然听懂了，我们来做一个实验好不好?”所有人大声回答“好”。

After a while, the classmates raised their hands, and the teacher ordered a few students to get up and answered.Plants were transplanted into the woods. "The scientific teacher shook his head and said loudly:" Classmates, the meaning of grafting is to connect the stems of a plant to another plant for reproduction, allowing it to grow into different plants, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, students, classmates, students, students, students, students, students, students, classmatesDo you understand it? "We said in unison:" I understand! "The scientific teacher said," Since you understand, let's do an experiment? "Everyone answered" OK. "

实验开始了，我们围在讲台前，但是我和一些同学动作慢了一点，结果连两盆植物的影子都没看到。这时，老师注意到了我们，指着我说：“你来操作，把这两盆植物相互嫁接一下。”我开心地走到老师跟前，拿起小刀片，我的心就怦怦跳起来，结果一不小心，把一片叶子给割了下来。这时，科学老师开口说：“别紧张，慢慢来，植物的切口要切割成椭圆形的。”

The experiment started, we were around the podium, but some of my classmates and I moved a little slower, but I didn't even see the shadow of the two pots of plants.At this time, the teacher noticed us and pointed at me and said, "You come to operate and graft these two pots of plants." I happily walked to the teacher and picked up the small blade, and my heart jumped up.As a result, accidentally cut a leaf.At this time, the scientific teacher said, "Don't be nervous, take it slowly, the incision of the plant should be cut into oval."

听了老师的话，我的心顿时就平静了下来，按照老师的指点，小心翼翼地把一盆植物的茎切成了椭圆形的口子，再与另一盆植物的茎用胶带绑在了一起。老师说：“很好，嫁接完成啦!”教室里顿时响起了同学们热烈的掌声。

After listening to the teacher's words, my heart calmed down immediately. According to the teacher's instructions, carefully cut the stems of a pot of plants into oval mouths, and tied it with a tape with another pot of plants.The teacher said, "Very good, the grafting is complete!" In the classroom, the students' applause sounded warmly.

这就是我最难忘的一节课，你最难忘的一节课是什么呢?期待你的分享。

This is my most memorable lesson. What is your most memorable lesson? Looking forward to your sharing.

2、一节梦幻的科学实验课_难忘的课堂作文600字

“哇……”“哦……”“咦……”一阵阵或惊叹、或感慨，又夹杂着疑问的声音充斥着礼堂。你猜我们在干什么？是来自宝岛台湾的老师们在给我们上科学实验课呢。

"Wow ..." "Oh ..." "Hey ..." A burst of shocks, or emotions, mixed with doubts, filled the auditorium.Guess what we are doing?Teachers from Treasure Island Taiwan are giving us a scientific experimental course.

一上课，我就被老师幽默诙谐的戏剧性授课方式所吸引，“空气大炮”、“大号吹风机”、“吹气球”、“干冰汽水”……一个个有趣的科学实验和老师们生动的表演将我们带入梦幻奇妙的科学世界。

As soon as I class, I was attracted by the teacher's humorous and humorous drama teaching methods.Take us into a dreamy scientific world.

我记忆最深的就是“干冰造雾”的实验，老师将干冰放入两个水桶中，不一会雾气就从桶中涌起、泛出、流淌，​整个场地宛如西游记中呈现的仙境一般，同学们在这清凉的雾气中早已按捺不住心里的兴奋，现场一片欢呼雀跃。坐在前面的同学更是爬上讲台，有的试图抓住这缥缈的仙气，有的干脆盘腿坐在这惬意的雾气中自得一份神仙的逍遥快乐。原来干冰就是固态的二氧化碳，二氧化碳由固体变成气体时吸收大量的热，使周围空气的温度降得很快，空气温度降了，它对水蒸气的溶解度变小，水蒸气发生液化反应，放出热量，就变成了小液滴，也就是我们看到的“仙雾”。老师们通过与我们的互动交流，教会我们如何运用眼、耳、口、鼻、手在科学的世界里去观察和探索。此时，我觉得“伯努利原理”、“玻意耳定律”、“干冰”这些深奥的名词不再那么遥不可及。更感受到科学原来如此神奇，又这么简单，还十分好玩。

The deepest thing I remember was the experiment of "dry ice and fog". The teacher put the dry ice in two buckets. In this cool fog, the students were already unable to hold back the excitement in their hearts, and they cheered at the scene. Sitting in front of them climbed up to the podium, some tried to catch the fairy, and some simply sat in this comfortable fog. It turns out that dry ice is a solid carbon dioxide. When carbon dioxide changes from solid to gases, a large amount of heat is absorbed, which reduces the temperature of the surrounding air quickly and the air temperature decreases. The heat became a small drop, which is the "fairy mist" we saw. Through interaction with us, teachers teach us how to use eyes, ears, mouth, nose, and hands to observe and explore in the scientific world. At this time, I felt that the esoteric terms such as "Bernoulli Principles", "Boli Er Ding the Law", and "dry ice" were no longer so out of reach. I feel that science is so amazing, so simple, and very fun.

“仙气”弥漫，人群喝彩，我被眼前这似梦似幻的科学盛宴所震撼、陶醉，更感动于同学们对科学神奇的向往和对神奇背后原理知识的渴求，这才是促进科学知识不断普及和发展的动力啊。

The "immortal" is filled with the crowd, and I am shocked and intoxicated by this dreamy scientific feast in front of me. It is also moved to my classmates' longing for science and the thirst for the principles behind the magic. This is to promote scientific knowledge.The motivation to continuously popularize and develop.

我会永远记住这节梦幻的科学实验课。

I will always remember this dreamy scientific experiment.

3、难忘的一堂科学课_一堂课作文600字

一堂课作文600字篇一：难忘的一堂科学课

600 words in a lesson: an unforgettable scientific lesson

从幼儿园到小学，老师给我上了许许多多的课，但是，使我最难忘的还是四年级时的一节科学课。

From kindergarten to elementary school, the teacher gave me a lot of lessons, but what made me most memorable was a scientific lesson in the fourth grade.

那天，阳光明媚，天气晴朗，随着悦耳的上课铃声，我们站好了排，走进教室，开始上课了。

That day, the sun was bright and the weather was fine. With the pleasant ringtone, we stood up, walked into the classroom, and started class.

此时的老师打扮得也格外漂亮，说话的声音也特别好听：“同学们，我们今天做一个实验。”说着，老师在黑板上写下了“铁锤锤蛋锤不碎”几个大字。

At this time, the teacher was dressed up particularly beautiful, and the voice of speaking was particularly good: "Classmates, we do an experiment today." Then, the teacher wrote a few big characters on the blackboard "hammer hammer egg hammers".Essence

课堂的气氛一下子就活跃了，有的同学说：“铁锤锤蛋，连3岁小孩也知道谁胜谁负，今天老师怎么了?怎么变得这么笨了呢?”有的同学附和地说：“是呀，说得对极了!”还有的同学故作神秘地说：“说不定呢，老师知识那么渊博，怎么会错呢?”再看看班上那些小文学家、小科学家也正在抓耳挠腮，想不出个头绪。你别说，此时，我也正纳闷呢!

The atmosphere of the classroom suddenly became active. Some classmates said: "The hammer hammer egg, even the 3 -year -old child knows who is better and who is, what is the teacher today? How do you become so stupid?" Some students educatedSaid: "Yes, it's right!" Some classmates said mysteriously: "Maybe, the teacher's knowledge is so profound, how can it be wrong?" Look at the small writers and small in the classScientists are also scratching their ears, and they can't figure out a clue.Don't say, at this time, I am wondering!

老师小心翼翼地把道具——一个普通得不能再普通的鸡蛋、一个碗口大的铁锤拿出来。老师向我们摆摆手，这时，教室里一下子就静了下来，甚至连掉下一根针都能听见。大家屏住呼吸，睁大眼睛，望着那个红皮鸡蛋。只见老师拿着铁锤，使劲向鸡蛋上砸去，结果鸡蛋立刻碎了，老师的手沾满了鸡蛋青和鸡蛋黄。

The teacher carefully took out the props, an ordinary egg that could no longer be ordinary, and a large bowl of hammer.The teacher waved his hand to us. At this time, the classroom suddenly calmed down, and even the next needle could be heard.Everyone held his breath, opened his eyes, and looked at the red skin egg.I saw the teacher holding the hammer and smashed the eggs hard. As a result, the eggs were broken immediately, and the teacher's hand was covered with eggs and egg yolks.

这时，不知谁说了一声：“老师输了!”我们班的同学议论纷纷，有的说“老师这下子可输定了!”有的说：“这下看老师怎么说。”还有的说：“这回老师可没法下台了。”

At this time, I don't know who said: "The teacher lost!" The classmates of our class talked, and some said, "The teacher can lose now!" Some said, "What do you think of the teacher?" And there is any moreHe said, "This time, the teacher can't step down."

5分钟过后，议论声停止了。

After 5 minutes, the discussion stopped.

老师微笑着说：“同学们，你们看我说得没错吧!”“没错?鸡蛋都碎了，还没错?”我的心理充满了疑惑。“你们把铁锤锤蛋锤不碎，理解为蛋不碎，但我却认为是锤子不碎。”同学们这时才恍然大悟，纷纷点头。

The teacher smiled and said, "Classmates, you see me right!" "Yes? The eggs are broken, right?" My psychology was full of doubts."You don't break the hammer and egg hammer, and you understand that the eggs are not broken, but I think it is not broken." The students suddenly realized at this time and nodded.

课后我想：“中国文字可真是奥妙无穷啊!看来我以后还要好好学习呀!”

After class, I thought: "Chinese text is really mysterious! It seems that I have to study hard in the future!"

这件事太有趣了，至今使我难忘。

This incident is so interesting that I have made me unforgettable so far.

一堂课作文600字篇二：一堂难忘的课

600 words in a lesson composition 2: an unforgettable class

人都有许多难忘的事，我却有一堂难忘的课。回想起来，还真是津津有味，你们也来分享这堂难忘的课吧!

People have many unforgettable things, but I have an unforgettable class.In retrospect, it is really interesting, you can also share this unforgettable class!

一天晚上，我去上文捷优作文课。刚好那天是节活动课，我听说有好玩的游戏时，高兴地一蹦三尺高。老师终于在同学们迫不及待的目光中，宣布：“这节活动课，我们可要用到好吃的东西做道具哦!”老师话音未落，下面就一阵雷鸣般的欢呼声飞速响起。我真幸运，在第一轮就被老师请上台来了。老师的一句话，打破了下面热闹欢腾的场面：“我们的活动现在开始，我给台上的同学一人发一块可比克薯片。”老师说的游戏规则是这样的：用脸部表情，把薯片从眉际动挪到嘴巴，并用嘴巴咬住，才算获胜。我心想：“哎呀，这个有点难度，我还是全力以赴，尽力而为吧!接下来，比赛开始了。

One night, I went to the text class.It happened that day was a holiday class. When I heard that there were fun games, I jumped three feet high.The teacher finally announced in the eyes that the classmates couldn't wait, "We need to use delicious things to make props for this activity lesson!" The teacher's voice did not fall, and a thunderous voice sounded below.I was so lucky that the teacher was invited to the stage in the first round.A word from the teacher broke the lively and cheerful scene: "Our activities start now, and I will send a piece of gram potato chips to the classmates on the stage."The potato chips moved from the eyebrows to the mouth, and bite with their mouths to win.I thought: "Oh, this is a bit difficult, I still go all out and do my best! Next, the game begins.

我仰起头，把薯片小心翼翼地放在额头上，使劲地眨眼睛和挤眼睛。台下一直充满着欢呼声、尖叫声和喝彩声。我稍稍瞥了一眼别的同学，他们的进展都没我快，这才长长地舒了一口气。怎么才能让薯片稳稳地落在嘴里呢?我绞尽脑汁终于想到了快速的办法，先扇动鼻翼，嘟起嘴，特别谨慎地试了好几次，那块薯片最终“不情愿“地停在我的脸颊。我心里暗自加油，使出”终极秘密武器“——脸部抽搐功，神功使尽，薯片马上落在了我舌头够得着在地方。我轻轻一钩，薯片就安稳地落在我的嘴里了。台下立刻响起一阵掌声，我清楚听到：“这局，琨祺获胜!”我高兴得无法形容，老师接着说：“琨祺，这块薯片归你了!”我兴高采烈地回到座位上，心飞快地跳动。

I raised my head, carefully put the potato chips on the forehead, and blinked and squeezed my eyes vigorously.The audience has always been full of cheers, screams and applause.I glanced at other classmates a little, and their progress was not as fast as me, so I relieved.How can I make potato chips steadily falling into my mouth? I racked my brains and finally thought of a fast way. I first fanned my nose, poured my mouth, and tried it several times.Pass on my cheek.I secretly refueling in my heart and using the "ultimate secret weapon" -the face convulsions, the magical power, the potato chips fell on my tongue enough to get in the place.I gently hooked, and the potato chips fell steadily in my mouth.There was an applause immediately in the audience. I clearly heard: "In this game, Kun Qi won!" I was so happy that the teacher went on to say, "Kun Qi, this potato chip is attributed to you!"On the top, he flew quickly.

课后，我在思索：这堂课为什么让我快乐和难忘呢?啊，原来是因为我领悟了一个大道理：世上无难事，只怕有心人。

After the class, I was thinking: Why did this class make me happy and unforgettable? Ah, it turned out that because I realized a great truth: there was no difficulty in the world, I was afraid of people.

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