化学作文500字 化学作文300字初中大全(四篇)

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化学作文500字 化学作文300字初中大全(四篇)
时间:2023-05-05 10:42:24     小编:zdfb

在日常的学习、工作、生活中,肯定对各类范文都很熟悉吧。那么我们该如何写一篇较为完美的范文呢?下面是小编为大家收集的优秀范文,供大家参考借鉴,希望可以帮助到有需要的朋友。

化学作文500字 化学作文300字初中篇一

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化学作文500字 化学作文300字初中篇二

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化学作文500字 化学作文300字初中篇三

星期六的时候,我和妈妈还有一位妈妈的同事,和她的儿子,只要我们俩写完了作业,就带我们去实验室做化学实验。那位阿姨的儿子比我小几个月,是我的弟弟。

好不容易把作业写完了,就剩下一篇博文了,妈妈也正好下了课,我和那个弟弟就如愿以偿的去了实验室做化学实验。

刚到那儿,妈妈就给我们变了一个“魔术”:她拿起了一瓶装有透明液体的玻璃瓶,往试管里倒了一点,然后又拿起了另一瓶还是装着像水一样的玻璃瓶,又往试管里倒了一点,然后轻轻地摇了摇,突然,试管中原来像矿泉水一样的液体,竟然变成了桃红色的液体。

这是为什么呢?原来,妈妈第一次倒进去的是碱,第二次倒进去的是酚酞,酚酞原本是没有颜色的,可是,在碱的作用下,酚酞的颜色就变成了桃红色。原来是这样,化学实验真是太有趣了!

那天,我们还做了很多有趣的实验,化学真是奇妙啊!

化学作文500字 化学作文300字初中篇四

以后,将会有一座未来的智能化学校,那里面有很多的电子设备,而且都看不见。

未来的智能化学校的师生都可以在饭堂里用餐,这样,就不需要清洁阿姨每天帮我们抬饭桶了。饭堂里还有一些会动的管子,只要把各种各样的调料放在管子上,让管子开始转动,如果你需要什么调料,就可以在餐桌上的电动表上点一下你需要的调料,这时,管子旁边的机器手就会把调料放在罐子里并运到餐桌旁。

教室也很先进,可以调温度和湿度,也可以开空调,而且椅子可以调高度。老师们使用黑板将会很方便,两旁有一个机器手,如果老师把黑板写满了,只要按一下按钮,机器手就会立刻把黑板擦干净,让老师继续使用。

在操场上,还有一个地震仪,如果地震仪发出耀眼的闪光和悦耳的叫声,就说明五天后将会地震。

这就是未来的智能化学校,它给我们带来了方便。

【本文地址:http://www.xuefen.com.cn/zuowen/2819315.html】

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