无论是身处学校还是步入社会,大家都尝试过写作吧,借助写作也可以提高我们的语言组织能力。大家想知道怎么样才能写一篇比较优质的范文吗?接下来小编就给大家介绍一下优秀的范文该怎么写,我们一起来看一看吧。
化学作文200字 化学作文600字篇一
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化学作文200字 化学作文600字篇二
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200字 化学作文600字篇三
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化学作文200字 化学作文600字篇四
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。