这就是科学

魔法实验 玩转校园

科学实验SHOW出来

科技创新、科学普及是实现创新发展的两翼，为增进西咸上林学校学生科学素养，充分发挥实验育人功能，落实立德树人根本任务，培养学生良好的科学思维，丰富学科实践活动，促进学生素养提升，12月26日下午，中学部第一届“这就是实验”主题学科实践活动在博学堂成功举行。此次活动共进行了十场别开生面、趣味横生的实验，涵盖了、物理、化学、生物等多个领域，有“趣”又有“料”的科学实验秀，让你一秒体验科学的神奇与奥秘。

李鸿校长、孙晶副校长、各部门负责人及中小学部部分师生参加了本次活动。

1《静电飞花》

物理学科

Earth Hour

科学就在我们身边，你发现了吗？中学物理学科黄传艳老师带来的《静电飞花》实验探秘静电以及静电产生的原理，近距离体验了一把科学的魅力。

《静电飞花》实验原理：用羊毛摩擦塑料盘，塑料盘带负电。将金属盒覆盖在带电的塑料盘上，金属盒下表面感应正电，上表面感应的负电会沿着塑料盘上的金属链导入大地，这样金属盒上表面就不带电。此时，将纸屑撒在金属盒上，纸屑不带电，所以不动。当提起金属盒时，金属盒下表面的正电荷重新分布于整个金属盒。这时，纸屑也带了正电荷，由于同种电荷相互排斥，因此金属盒上的纸屑向上和四周飞散开来。

2《法老之蛇》

化学学科

Earth Hour

一切奇迹的出现都需要耐心等待，中学化学学科陈利利老师带领大家完成了实验《法老之蛇》，见证了一条“蛇”的诞生。

《法老之蛇》实验原理： 它利用化学反应将三种常见的物质——小苏打粉、白糖和乙醇混合在一起，然后进行点燃。这个实验会生成大量气体，当气体无法释放时，就会引起膨胀，看起来就像一条巨大的“蛇”正在舞蹈。

3《空气大炮》《马德堡半球》

物理学科

Earth Hour

简易水桶如何能够“吞云吐雾”？十几名学生竟拉不开两个小小的铁盆？中学物理学科刘小建、李永平老师带来的《空气大炮》《马德堡半球》实验利用空气与大家来了一场更深入的互动。

《空气大炮》实验原理：当我们拉住塑料薄膜再松开，就可以使桶内的空气压缩向圆孔中集中并发射，进而形成膨胀冲击波，形成空气圈。

《马德堡半球》实验原理：1654年，德国马德堡市长奥托冯·格里克为了向世人证明大气压强的存在及其强大的力量，他在市郊用直径约37厘米的两个黄铜半球做了一个“大型实验”——把这个黄铜的半球壳中间垫上橡皮圈；再把两个半球壳灌满水后合在一起；然后把水全部抽出，使球内形成真空；最后，把气嘴上的龙头拧紧封闭。这时，周围的大气把两个半球紧紧地压在一起。在铜球的两端各有4匹马同时向相反方向拉铜球，结果拉不开；后来增加到共计16匹马才在巨大的一声“啪”中将铜球分开。以此形象地验证了大气压强的存在与威力。

4《火焰的颜色》

化学学科

Earth Hour

谁说火焰都是黄色的？你瞧，黑暗中，几簇跃动的火苗色彩缤纷，亦真亦幻。中学化学学科姜思惠老师为大家带来了实验《火焰的颜色》，给大家揭晓了为什么烟花的颜色是五颜六色的奥秘。

《火焰的颜色》实验原理：节日庆典的烟花为何五颜六色？这是因为燃烧过程中原子中的电子吸收了能量，从能量较低的轨道跃迁到能量较高的轨道，但处于能量较高轨道上的电子是不稳定的，很快跃迁回能量较低的轨道，这时就将多余的能量以光的形式放出。不同金属的化合物在灼烧时会放出多种不同波长的光，因不同光的波长不同，呈现的颜色也就存在差异。从焰色反应的实验里所看到的特殊焰色就是光谱谱线的颜色。每种元素的光谱都有一些特征谱线，发出特征的颜色而使火焰着色。

5《神奇的发酵》

生物学科

Earth Hour

今天的实验不仅好玩儿，还好吃！中学生物学科贺妍、张俊俊、赵蕊鹏老师带来的《神奇的发酵》实验，让食物通过发酵来了一场华丽的蜕变。同学们现场制作的泡菜和酸奶，真真是让人垂涎欲滴！

《神奇的发酵》实验原理：发酵是一种充满智慧的食品制作方法，通过微生物与人类的合作，将食材转化为拥有芳香浓郁特殊风味的美食。在这个过程中，需要不断地尝试和实践，掌握发酵的技巧和方法，不仅可以改善食材的口感和营养价值，还可以延长食品的保质期。

6《油锅取物》

物理学科

Earth Hour

在沸腾的油锅里徒手取硬币，你敢不敢？中学物理学科李永平老师带来的《油锅取物》实验，告诉你手入“热油”而安然无恙并非魔法和超能力！

《油锅取物》实验原理：锅里大部分是醋，小部分是油，而油的密度小于醋的密度，所以锅里下面是醋，上面一层是薄薄的油，看起来好像全是油。另外，因为醋的沸点是60度，远低于油的沸点，当看到油锅沸腾时，其实是醋在沸腾。

7《鲁米诺反应》

化学学科

Earth Hour

无论暗夜有多么可怖，鲁米诺的点点荧光一定会指引人们走向公理与正义的道路。中学化学学科初立奇老师带来的实验《鲁米诺反应》，让大家再次感受到催化剂的神奇作用。

《鲁米诺反应》实验原理：鲁米诺试剂（luminol）的化学名称是3-氨基邻苯二甲酰肼。鲁米诺与氢氧化物反应时生成了一个双负离子（Dianion），使用铁氰化钾等作为催化剂（法医学上的催化剂则恰好是血红蛋白中的铁）催化过氧化氢或过碳酸钠分解出的氧气，氧气氧化双负离子生成有机过氧化物。该有机过氧化物很不稳定，分解生成激发态的3-氨基邻苯二甲酸。激发态至基态转化中，释放的能量以光子的形式存在，产生蓝色的荧光。法医学中1滴血混在999滴水中时也可以用鲁米诺反应检验出来。

8《看得见的声音》《火龙卷》

物理学科

Earth Hour

声音在我们日常生活中无处不在，我们用嘴巴发出声音，用耳朵聆听美妙的音乐，可是你知道声音是可以看见的吗？当火焰遇上龙卷风，又会组成什么可怕的怪物呢？中学物理学科李婷老师为大家展示了《看得见的声音》和《火龙卷》实验，带领大家去探索“看得见的声音”和“火龙卷”的奥秘。

《看得见的声音》实验原理：看得见的声音，其实质是将声波的振动转化为机械振动，然后再将机械振动转化为可见的光信号，从而实现声音的可视化。

《火龙卷》实验原理：火龙卷是一种罕见的自然现象，其形成的物理原理是当大热流与风流结合时，会形成高速旋转的空气涡流。这些空气涡流可以收紧并形成类似龙卷风的结构，旋转着吸入燃烧残骸和易燃气体。

9《隔空亮灯》《离子风车》《离子花环》

物理学科

Earth Hour

徒手就能点亮小灯！原来人也能作为导体，联通电路，点亮小灯。随之一起被点亮的，还有同学们想象力和创造力的火花。中学物理学科韩磊老师带来的实验《隔空亮灯》《离子风车》《离子花环》，让大家身临其境，领略神奇魔法的奥妙。

《隔空亮灯》实验原理：特斯拉线圈能产生一个高频高压电磁场，当一些含有气体的灯具靠近时，灯具里面的气体受到电磁场的作用会发出各种光。

《离子风车》实验原理：特斯拉产生的电弧是高温等离子体，可以迅速加热空气，热空气流动产生推力，当电弧从风车的两端反方向喷射时，它就开始旋转起来。

《离子花环》实验原理：用一根细细的具有弹性的金属导线作为放电端，当线圈开始工作时，顶端喷出电弧产生推力，由于细导线的不稳定性，电弧便会晃动并旋转起来。

在老师们一场场精彩的“科学实验秀”中，听取同学们“哇”声一片！

10《泡泡实验》《大象的牙膏》

化学学科

Earth Hour

一场场精彩的实验秀点燃了全场的热情，场上的学生们也不甘示弱，中学部廖一凡、任江铭同学为大家展示了《泡泡实验》《大象的牙膏》两个实验，奇妙的实验现象引得大家啧啧惊叹、掌声连连！

在轻松愉悦的氛围中，精彩绝伦的科学实验秀落下帷幕。李鸿校长对本次活动进行了总结。他指出，今天的实验，让人印象深刻。自然界中有许多奇特的现象，而这些现象背后都有其自然规律，今天的十个实验只是万千自然现象中小小的一个方面。今天的实验过程操作规范，意义深远，同学们不仅探究了科学实验背后的原理，也明白了实验操作的基本步骤，激发了学生们对科学的热情，为西咸上林学校科学学科教育开了一个好头。把科学课纳入教育学习中，不仅仅是书面化、公式化、形式化的教育，更要按照国家的要求去探索开展的方法，培养学生勤动手、勤动脑、乐创造的科学素养和实践能力。

本次科学实验秀集科学性、变化性、趣味性为一体，以最直观、有趣的方式演绎了生硬的科学原理。同学们在快乐中探秘科学，一个个有趣的实验展示与互动让大家耳目一新。通过视觉、嗅觉、触觉近距离接触，学生在游戏中获取了科学知识，感受科学魅力的同时开阔了眼界，也进一步激发了学科学、爱科学的热情。

","gnid":"9f7e9b7701c2616f9","img_data":[{"flag":2,"img":[{"desc":"","height":1465,"title":"","url":"https://p0.ssl.img.360kuai.com/t014a30a1bf8a68f06c.jpg","width":1080},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01e493740ec749aee8.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01267fb14bdd064892.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01950ab247869a0bb3.jpg","width":"1080"},{"desc":"","height":"1440","title":"","url":"https://p0.ssl.img.360kuai.com/t016b8cdf43dcd9431f.png","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0153ac52adaafaeda5.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01704225120d4323a1.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01413f35649b72d935.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01eed9adb20f3efe86.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0137c4be3ecc436276.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t010e0e8c7cd9a5c68f.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01e9425273a55061dd.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01a9cfb1b523beb52a.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01e07b3a8c2930c520.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01251b763654fe01b0.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t017b17c87dcf372d7a.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t015c8afd1c5cf9b1ba.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01e5f1b5c1b28e4dff.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t015f9015acd98379cd.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0130889a07fe564ee2.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01431c1909a7050dca.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01412a02321ace4879.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01f711821db132557e.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t015bf761e1c5fd9b12.jpg","width":"1080"},{"desc":"","height":"1465","title":"","url":"https://p0.ssl.img.360kuai.com/t01c34cbf39deb468d1.png","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01b6763700047e404e.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01c2100570216d702d.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01253c8b4cfa61616a.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t010a88258b50aec911.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t015eba85a621afcead.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t012d29d56efa50b40e.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0179b2bdf20a5b9e6a.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t016d30394f4268b657.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0157efc2ebc967a72e.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01df2bbec7bde7c976.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01a28e2a9083ed9512.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01b21959c4a1540516.jpg","width":"1080"},{"desc":"","height":"1465","title":"","url":"https://p0.ssl.img.360kuai.com/t015c6f59dba8d23315.png","width":"1080"},{"desc":"","height":"1465","title":"","url":"https://p0.ssl.img.360kuai.com/t010c3b8ae67bdfb7c0.png","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0125020cc06dbb7241.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01d3d1d940c3c2ac9b.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01a683dc979d000cf8.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t010f07858498344901.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0191370298bea0351a.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0144965b8b62dec2d6.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t014e32dc2d9b77b0f1.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t019b8302a361482859.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01700e99eacb706b62.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t014f6a1633309146e3.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01fdfa4aac1934fae9.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01fc034bc34f59e60e.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01c7030b0c04fed8a4.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0178ca90a9c2725d8c.jpg","width":"1080"},{"desc":"","height":"1465","title":"","url":"https://p0.ssl.img.360kuai.com/t01459308b806b21833.png","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0129f83bb7c5b7abf2.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01fb841891ba61552d.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t010dd49d0ff06b66a7.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t014866fad2c15c50fa.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01cc48e7723f182ce5.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01385a1b3667aa55a5.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01cd7dee98b0e06700.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t017dedb083d0b657ab.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01e4ed747b87769ffc.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01fef1a5eb3a65c1ec.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t017cddfb772b3ca4e2.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t016d71229339df4f62.jpg","width":"1080"},{"desc":"","height":"1465","title":"","url":"https://p0.ssl.img.360kuai.com/t01127c5767f9edbfc3.png","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0176d67f95a87a4744.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01b5c085bffabe21f1.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0116bf234bae4527c8.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0152cac6db69bb1263.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01f6619b5e49c003a4.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t012f1d4eae88b39edf.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01e4140a9ecae2bd7c.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01c94be35f58a79f63.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01335bf05261f776ac.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01579d86b01e7cc15e.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01dbb95f743bbc038e.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t012e5a0b9a6064ed13.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01a56088725103fb54.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01e66b3ae7c3236a65.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01532fd8d37cffc7a8.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01f28c61ed6bb517de.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0199e23e1229328c1c.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t014e6fd410651b8c99.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0171dd1711cf652927.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01f91b9729497e070a.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01c74559e97979793f.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01fb29b2bca80ccdb0.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01441a7e887c19bb12.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01660753a6e83b4ceb.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t019e8c1776b034e724.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01c70790725c312171.jpg","width":"1080"},{"desc":"","height":"1465","title":"","url":"https://p0.ssl.img.360kuai.com/t011a53130c5169b182.png","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t017de79e62deea9ac6.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01c1054083159076f5.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01f8e5117b1277b4f7.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0189573508d43de890.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t017a284b21a9c3624c.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t011709a8ed89c040a8.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t012716d7ca97a96302.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01c4806985f169cbd6.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01244334a4eeae40b8.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01af5a1423d82c0492.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01410b97f551e18bd4.jpg","width":"1080"},{"desc":"","height":"1465","title":"","url":"https://p0.ssl.img.360kuai.com/t0138ca3d5931992945.png","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01f919652d7e15a3cc.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0184ad5946368ac3e6.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0118aa0a1c8e131d5e.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t010949a01d046afc43.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t013c2a433222527bad.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0157a0d651a3526776.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01d32e0417b87f465b.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0180209953ec30cdb8.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0114d54fdcad5e22d5.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01c635059c1f4698c8.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01958f7f657d484741.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t014aa7afea3f4d9bdc.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0149ba0075979dc5c9.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t010d814bca6f3bf0c0.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01e6692caf85588015.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0132c90d36b19b044b.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01b8bb33938104dc88.jpg","width":"1080"},{"desc":"","height":"1465","title":"","url":"https://p0.ssl.img.360kuai.com/t01358f1fef5ebaa4f3.png","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01410b97f551e18bd4.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t017434131a8e232230.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0177c86f8982e352ac.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t015f2b904c57b1a14d.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01cf1e5caa7fdccca9.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t015cd74b3899b1ac81.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t010935e7ed931ae259.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01edfeb2a7019bd816.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01dcb17f617ef710c2.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01909bba6934d31958.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01893e6c8e17ca6269.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01a7ddda26374e7754.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0139677a3b9584593d.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01b9e460297c5af39f.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t018ffdaaacf2b2c1ad.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t010ba04999620e0f14.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t015508b993ca319d6d.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0187840bbaf7c502e4.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0149a6487c0f7c9c1e.jpg","width":"1080"},{"desc":"","height":"1465","title":"","url":"https://p0.ssl.img.360kuai.com/t01e7ec8a5cb6e53047.png","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01bb575dceff6749e9.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01fa315e35e19da8f2.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t014b42e05031213924.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0137a7554a66059f9d.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01109c88a0341853ea.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0121cb831b6bd9f7ee.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0119f6549797551e53.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0179c8bb6e52cfe674.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01e4504142b2bf3a9c.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01a24ce26485185c6e.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t016f18b4f4570342f7.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t0143d1dbf00478db01.jpg","width":"1080"},{"desc":"","height":"720","title":"","url":"https://p0.ssl.img.360kuai.com/t01c05dbffe99fd55eb.jpg","width":"1080"},{"desc":"","height":"608","title":"","url":"https://p0.ssl.img.360kuai.com/t01b8335a33326ee85e.png","width":"1080"},{"desc":"","height":"608","title":"","url":"https://p0.ssl.img.360kuai.com/t01b8335a33326ee85e.png","width":"1080"},{"desc":"","height":"608","title":"","url":"https://p0.ssl.img.360kuai.com/t01b8335a33326ee85e.png","width":"1080"}]}],"original":0,"pat":"art_src_0,otherc,fts0,sts0","powerby":"pika","pub_time":1703665295000,"pure":"","rawurl":"http://zm.news.so.com/b247e375f44b82380be0e9ca97d260d8","redirect":0,"rptid":"8eea9e87f5de3dbe","rss_ext":[],"s":"t","src":"教学做合一","tag":[],"title":"西咸上林学校开展第一届“这就是实验”主题学科实践活动

计澜耍1330如何消灭小强?
雍俭放18512935748 ______ 在一张白纸上,你用白糖和小苏打粉,按1:1的比例混在一起,可以多准备几份,放在小强最易出没的几个地方,一般3到5天,你就可以在纸的附近发现一些小强的尸体了.原理是:糖可以把小强吸引过来,而当它吃了苏打粉有被撑死了.

计澜耍1330跳跳糖为什么会跳~~?
雍俭放18512935748 ______ 很多青少年非常喜欢跳跳糖,吃起来有“超酷”的感觉.其实,跳跳糖是具有科技含量的糖果,因为在自然界里是不会有跳跳糖的. 那么到底跳跳糖的工作原理是什么呢?首先,我们先介绍一下硬糖块的制作过程.硬糖块是由白糖、玉米糖浆、...

计澜耍1330小苏打和水有没有产生新物质? -
雍俭放18512935748 ______ 有新物质产生:蜡烛燃烧 、小苏打和白醋融合、铁钉生锈、碘酒撒在淀粉上; 没有新物质产生:易拉罐被压扁、水结成冰、玻璃打破、白糖溶化. 蜡烛燃烧:碳氢化合物和氧气反应生成二氧化碳和水 小苏打和白醋融合:酸碱中和反应,生成醋酸钠、水、二氧化碳 铁钉生锈:铁和氧气反应,生成三氧化二铁 碘酒撒在淀粉上:淀粉是碳水化合物,分子链很长,碘分子会和分子链上的官能团发生反应.

计澜耍1330蒸馒头为什么放苏打原因是什么 -
雍俭放18512935748 ______ 蒸馒头在发面的过程中酵母菌分解淀粉会产生乳酸,苏打的化学成分是碳酸钠和碳酸氢钠属于碱性物质,在发好的面团中加入苏打后会中和乳酸降低酸度,酸碱中和会产生二氧化碳气体,这样会使馒头疏松多空,蒸的更加松软好吃.馒头的做法:主料:面粉280g 辅料:水 140g 酵母适量 小苏打适量 糖20g1. 把面粉加水和成团.2. 然后放到温暖的地方发酵,一般25度适宜,发酵1个小时.3. 把发好面放到面板上,再适量小苏打 ,不要放太多,太多会发黄,有碱味.4. 再放上白糖,开始揉吧,一直要揉到非常均匀了才行,然后用刀切段.5. 蒸锅中放水当快开时,把馒头面团放入蒸笼.6. 然后大火蒸30分钟,关火以后等个两分钟就可以出锅了.

计澜耍1330什么东西加糖点燃会发生冒烟?补充:冒很长时间的白烟
雍俭放18512935748 ______ 可燃物都是

计澜耍1330汽水中的气是通过什么方法溶解的谢谢了, -
雍俭放18512935748 ______[答案] 汽水就是二氧化碳气体的水溶液,工厂里制造汽水时,是通过加压的方法,增大二氧化碳的溶解度,让较多的二氧化碳溶解... 自制汽水 食用柠檬酸(或酒石酸)和小苏打(NaHCO3)溶于水后,能发生化学反应,产生二氧化碳气体.二氧化碳气体溶...

计澜耍1330跳跳糖为什么会跳呢?
雍俭放18512935748 ______ 跳跳糖一种带有娱乐性质的休闲食品. 跳跳糖中所含的二氧化碳在嘴里遇热汽化后产生了推力才使跳跳糖颗粒在嘴里蹦跳. 有人曾经做过实验呢! 他们把跳跳糖放入水中,观察到在它的表面有连续不断的气泡冒出,正是这些气泡使人有“跳”...

计澜耍1330冬天如何发面
雍俭放18512935748 ______ 具体方法1 多放些酵母.冬天和面要比夏天多放酵母,这样面会发的快一些.使用酵母前要用温热的水将酵母化开.2 温热水和面.在和面时用温热水,能让面更容易发起来,但不要用很烫的水,否则会适得其反.发面最适宜的温度是27~30度...

计澜耍1330介绍一些简单好玩的实验 -
雍俭放18512935748 ______ 一:鲜猪肝制取氧气.过氧化氢和鲜猪肝剧烈反应生成氧气,过氧化氢很容易买到.原理是鲜猪肝中有过氧化氢酶,催化过氧化氢分解成水和氧气.猪肝也可以用冬笋或鲜鸭血、鲜鸡血代替. 二:用牛奶和白醋制取高分子化合物.将牛奶静置脱...

计澜耍1330面发的不好能放小苏打吗 -
雍俭放18512935748 ______ 可以,小苏打是可以用来发面的,但不能用热水.苏打粉的成分就是碳酸氢钠,加热能产生二氧化碳.所以你不能用热水来常溶解它,它是可以发面的,由于加热它产生二CO2的同时产生氢氧化钠,就会让面有碱味.所以你必须把面先作生物发...