今天老师要带我们做一个非常有趣的小实验。
Today the teacher is going to take us to do a very interesting little experiment.
老师迈着轻快的步子走了进来，大声说：“同学们，今天我们要做一个小实验，请把材料准备好。材料需要一些小苏打、一些白醋、一根筷子、一些黑米、一些水和一个容器。我准备好这些材料，心疯狂地跳动着，下一秒似乎就要从嗓子眼里跳出来了，特别紧张。
The teacher walked in briskly and loudly said, "Classmates, today we are going to do a small experiment. Please prepare the materials. The materials need some baking soda, some white vinegar, a chopstick, some black rice, some water, and a container. I have prepared these materials, and my heart is beating wildly. The next second, it seems like I will jump out of my throat, very nervous.作文吧 Www.ZuoWenBa.Net
首先，我接了半杯水倒入玻璃杯，我觉得，在水里要加些什么。那么说不定黑米真的能跳支舞给我看。然后，我加入黑米，又加入小苏打，搅拌均匀，搅拌时我望着浑浊不清的水，心想：我必须快点搅拌。最后，我看见黑米宝宝们还没有醒，我真的着急了，只好把最后的希望寄托在白醋身上，我边倒白醋边嘴里念叨着：“白醋呀白醋，全部的希望都在你身上呀。”
Firstly, I took half a cup of water and poured it into a glass. I think I need to add something to the water. So maybe Heimi can really dance for me. Then, I added black rice and baking soda, stirred evenly. As I stirred, I looked at the murky water and thought to myself: I must stir quickly. Finally, I saw that the black rice babies hadn't woken up yet, and I was really anxious. So I had to pin my last hope on white vinegar. As I poured white vinegar, I muttered in my mouth, "White vinegar, white vinegar, all my hope is on you
我睁开眼睛，白醋的加入虽然产生了好多小气泡，但也不足以让黑米宝宝们浮起来。我气急败坏的想“黑米宝宝呀，你也太能睡了吧！我派那么多东西去叫你，你还不起来。同桌望着我火冒三丈的样子，拍拍我的肩说：“同桌，你再加一点白醋不就行了吗。”我抬了抬头说：“好同桌，你说得很有道理。”我又加了些，果然见效。神奇的事情发生了！黑米宝宝醒啦，我一看，不得了，黑米宝宝不仅会跳单人中国舞，还会跳双人拉丁，群体街舞。实在美不胜收呀！
I opened my eyes, and although the addition of white vinegar produced many small bubbles, it was not enough to make the black rice babies float. I was so angry that I thought to myself, 'Black Rice Baby, you must be so good at sleeping! I sent so many things to call you, but you still can't get up.' My desk mate looked at my angry expression and patted my shoulder, saying, 'My desk mate, can you just add a little more white vinegar?' I looked up and said, 'Good desk mate, you make a lot of sense.' I added more and it really worked. Something magical happened! Heimi Baby is awake. When I saw it, it was amazing. Heimi Baby not only knows how to dance solo Chinese dance, but also how to dance pairs of Latin and group street dance. It's truly breathtaking!
后来我得知，实验原理是这样的：小苏打和醋产生二氧化碳气泡；气泡会从杯底一直上升，带动黑米，一到达水面气体释放，黑米下沉。
Later, I learned that the experimental principle was as follows: baking soda and vinegar produce carbon dioxide bubbles; Bubbles will rise continuously from the bottom of the cup, driving the black rice. Once they reach the water surface, the gas is released and the black rice sinks.
这次实验太有趣了，好期待下次实验啊！
This experiment is so interesting, I'm looking forward to the next one!