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一堂有趣的科学课

 二维码 14
发表时间:2021-03-20 13:47

有的课使我记在脑海中,有的课也使我难以忘怀。最让我难忘的是一次有趣的科学课。


那是一个炎热的下午,老师那了一个水瓶和一个笔盖,一个圆形的橡皮泥,老师先把一个黑色笔盖上捏上橡皮泥就成了一个“潜水艇”。把水装入瓶子里就成了一条“小河”。把沾在笔盖上的橡皮泥和笔盖一同放入水中,它当然会沉下去,要让它浮上来你信吗?当然不会信。因为它也有一定的重量。谁知老师用力一捏,它就浮了上来,一松开手它又马上沉了下去。我没简直不敢相信自己的双眼,老师真的做了一个真正的“潜水艇”。


老师见我们非常惊讶、好奇,就带我们去了二楼实验室去做一次试验。到了实验室我们看见了一只只可爱、生机勃勃的兔子,英勇凶狠的蛇,也看见了一些贝壳、鱼等昆虫标本,走进倾听,似乎还能听到轻细的呼吸声。


后来老师分了小组后,我们就开始了一次小组实验我们去接水,一不小心,我们把水弄得满身都是的,像一只落汤鸡。我们装完水后就学着老师的样把“潜水艇”放入水瓶中,用力捏瓶子可我们力气太小“潜水艇”并没有浮上来,我们就叫来了老师,老师一用力,“潜水艇”好像很听老师的话似的,乖乖的浮上来了。但我们怎么用力,它怎么也不愿意上来。没办法,我们只好输在它的脚下了。


这次试验虽然没成功,但我们看见了许许多多的标本,我们也学到了许多知识。我们仍旧很开心。

英语翻译

Some lessons make me remember, and some lessons make me unforgettable. The most memorable thing is an interesting science class.


It was a hot afternoon, the teacher had a water bottle and a pen cap, a round plasticine, the teacher first put a black pen cap and pinched the plasticine to become a "submarine." Putting water in a bottle becomes a "little river". Put the plasticine on the pen cap into the water together with the pen cap. Of course it will sink. If you want to let it float, do you believe it? Of course you won't believe it. Because it also has a certain weight. Unexpectedly, when the teacher squeezed it hard, it floated up, and immediately sank when he let go of his hand. I couldn't believe my eyes, the teacher really made a real "submarine".


Seeing that we were very surprised and curious, the teacher took us to the laboratory on the second floor to do an experiment. When we arrived in the laboratory, we saw a cute and lively rabbit, a brave and vicious snake, and some insect specimens such as shells and fishes. When we walked into and listened, we seemed to be able to hear the light breathing.


Later, after the teacher was divided into groups, we started a group experiment. We went to collect water, and accidentally, we made the water all over, like a soup chicken. After we filled the water, we put the "submarine" into the water bottle like the teacher, and squeezed the bottle hard, but our strength was too weak. The "submarine" didn't come up, so we called the teacher, and the teacher tried hard, "Dive "Boat" seemed to listen to the teacher's words, and came up obediently. But no matter how hard we use it, it doesn't want to come up. No way, we had to lose at its feet.


Although this experiment was unsuccessful, we saw many specimens and we also learned a lot of knowledge. We are still very happy.


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