在学校开展的科技节创意制作比赛中,我制作了一个简易灭火器。我用的材料很常见:药店里的小苏打、超市调料品柜上的醋精,再来些一次性的茶包。当然,还需要一个盛放这些物体的器皿——我们经常用来洒水浇花的喷水壶。把这些材料都准备好后,我们就可以开始制作了。当然,我需要一名助手,那就是天下无敢的好妈妈。有她在技术上的支持与操作上的指导,我的制作会变得有趣又有料。我们配合可默契了,我用双手把茶包的口袋撑开,妈妈则用药勺把白色粉末状的小苏打一匙一匙地放进茶包内,再用棉线把袋口扎紧,以防小苏打泼洒出来;接着,按3份醋精1份小苏打的比例,量取醋精后倒在喷水壶里; During the science and technology festival creative competition in school, I made a simple fire extinguisher. The materials I use are very common: baking soda in pharmacies, vinegar essences in supermarket condiment cabinets, and some more disposable tea bags. Of course, there is also a need for containers for these objects - the water jug ​​we often use to sprinkle water. Once we have these materials ready, we can begin production. Of course, I need an assistant, that is a good mother in the world. She has the technical support and operational guidance, my production will become interesting and material. We cooperate with the tacit understanding, I use both hands to prop up the bag of tea bags, mother spoon with white powder baking soda spoonful spoonful into the tea bag, and then tighten the bag with cotton thread to prevent Sprinkle baking soda; then, according to the proportion of 1 part of 3 parts of vinegar, baking soda, vinegar, after pouring in the spray bottle;