作文库小学三年级内容页

烧不破的气球小实验300字三年级

2022-10-16 15:34:06三年级172

Do you know? There is a kind to burn infrangible balloon actually beside our, will quickly look!

你们知道吗?我们的身边其实有一种烧不破的气球,快来看看吧!

Above all, we need to prepare a balloon, a candle rinses with a cup. Next we enter clear water in the balloon, blow the balloon. The balloon still has the palm only at the beginning so big, just blew a balloon to be mixed my head is euqally big, bind the balloon it is good to rise. Next, we ignite the candle, also can let the parent come, this one pace must take care, do not want handle burn. Scintilla is beating in wind, the heart with me is euqally excited. The hour that witnesses a miracle arrived, I move the balloon cautiously cerated candle, the balloon is burned really actually not broken, my heart Li Zhengle, uploaded the keenly feel that come to pullback me very quickly from the hand reality, my hand is so imperceptible had moved of fire above, I collect the hand at once. Say to do an experiment to must want caution certainly so. Why to want to know the balloon is burned be defeated? Because water can absorb igneous quantity of heat,be actually, this can make the balloon is not defeated by baked wheaten cake.

首先,我们需要准备一个气球,一根蜡烛和一杯清水。然后我们把清水倒入气球里,把气球吹起来。气球一开始还只有手掌那么大,刚吹一下气球就和我的头一样大了,把气球绑起来就好了。接下来,我们将蜡烛点燃,也可以让家长来,这一步一定要小心,不要把手烧伤了。火花在风中跳动着,和我的心一样激动。见证奇迹的时刻到了,我小心翼翼地把气球移上蜡烛,气球竟然真的烧不破,我心里正乐呢,从手上传来的痛感很快把我拉回了现实,原来我的手不知不觉间已经移到了火的上面,我连忙把手收回来。所以说做实验一定得要小心。想知道气球为什么烧不破吗?其实是因为水会把火的热量吸收,这就会使气球不被火烧破。

This experiment is very interesting, want us to observe carefully only actually, with respect to meeting discovery, it is to have a lot of mystery beside us, will quickly try!

这个实验是不是很有趣,其实只要我们仔细观察,就会发现,我们身边是有很多奥秘,快来试一试吧!

再来一篇
上一篇:森林里的医生作文400字 下一篇:极速蜗牛作文500字
猜你喜欢