I saw a scientific column today " A U course learns " , in this column I acquired a lot of a lot of scientific knowledge, and these knowledge are us ask adult in life middling regular meeting. For instance: Why is seawater salty, factitious what can daydream, factitious what wanted grow permanent teeth, moon to be far from the earth to meet how, why tear is salty, the fish can drink water …… listens please next I come together:
今天我看了一个科学栏目《阿U学科学》，在这个栏目中我学到了好多好多科学知识，并且这些知识都是我们在生活中常常会问大人的。比如：海水为什么是咸的、人为什么会做梦、人为什么要换牙、月亮远离了地球会怎么样、为什么眼泪是咸的、鱼会喝水吗……接下来请听我一一道来：( 作文吧 WwW.zuoWenbA.net )
Why is seawater salty, this should rise from deep-sea form accepted theory or formulation, in a lot of years a lot of seawater crystallizes with structural water before of water form existence, as crustal motion these structural water, crystallization water is released from inside mineral rock, the lithosphere passes refrigeration to finalize the design, form high mountain Campagna, sea basin, refrigeration all does not form the lithosphere acuteness convection air, bring about rainstorm frequency hair, these water market became the most primitive ocean together. But why be salty? Because there are all elements on the earth in seawater,be, among them full marks / 90% the left and right sides is sodium chloride, namely salt, still have vitriolic magnesium additionally, magnesium chloride. Magnesium chloride is bitter, so seawater is drunk rise to be sufferred from again salty.
海水为什么是咸的，这要从海洋的形成说起，在很多很多年以前海水以结构水结晶水的形成存在，随着地壳的运动这些结构水、结晶水从矿物岩石中释放出来，地壳经过冷却定型，形成高山平原，海盆等，地壳冷却不均形成剧烈的对流空气，导致暴雨频发，这些水集在一起变成了最原始的海洋。但为什么是咸的呢？是因为海水中有地球上所有的元素，其中的满分/90%左右是氯化钠，也就是食盐，另外还有硫酸镁，氯化镁等。氯化镁是苦的，所以海水喝起来又苦又咸。
Can the fish drink water. The sort that wants minute of fish then is fresh water fish a kind, one kind is briny fish, live in the fish in fresh water, need not drink water all one's life, because permeate the concern that control,this is, permeate pressing is by deliquescent the material in water forms, there are a lot of protein chromas to want than the fresh water outside in piscine body tall, permeate the body that controls the fish of thorough fresh water that makes the fresh water in a steady stream outside constant in. But, the chroma in seawater compares piscine style inside tall, permeate ceaselessly outwards with the water in a steady stream inside piscine body so, the fish in the sea often must drink water complement moisture, but the elasmobranch of sea mile does not drink water, for instance shark, but the move about that the shark must keep.
鱼会喝水吗。那要分鱼的种类一种是淡水鱼，一种是海水鱼，生活在淡水里的鱼，一辈子都不用喝水，这是因为渗透压的关系，渗透压是由溶解在水里的物质形成的，鱼的身体里有许多蛋白质浓度比外面的淡水要高，渗透压使外面的淡水源源不断的深入淡水鱼的身体里。但是，海水里的浓度就比鱼体内高，所以以鱼体内的水源源不断的向外渗透，大海里的鱼不得不经常喝水补充水分，但是海里的软骨鱼并不喝水，比如鲨鱼，但是鲨鱼必须不停的游动。
This is the scientific knowledge that I acquire, you see this how interesting ah! Hope you also learn study.
这就是我学到的科学知识，你看这多么有趣呀！希望你们也来学习学习吧。(文/谢硕果)