妈妈在喷洒农药时,常要用塑料袋包着手打开农药瓶盖内塞,防止有毒液体弄到手上。在化学课上,我也注意到,老师使用过氧化氢、浓盐酸、浓硫酸和硝酸等一些酸性或腐蚀性较强的药品时,打开瓶盖内塞也极小心,避免将液体沾到手上。如何解决这一难题呢?1,思考分析打开有毒、有害化学液体药品瓶内塞时,通常用镊子或剪刀等撬开,费力且塞子容易被撬破,一些酸性液体会腐蚀金属镊子,同时酸性液体也易被污染。于是,我设计了能轻而易 Mom spraying pesticides, often with plastic bags to open the lid of the pesticide bottle to prevent poisonous liquid to get the hands. In the chemistry class, I also noticed that when teachers used some acidic or corrosive drugs such as hydrogen peroxide, concentrated hydrochloric acid, concentrated sulfuric acid and nitric acid, they also took care to open the cap of the cap and avoid touching the liquid . How to solve this problem? 1, thinking analysis Open the toxic, harmful chemical liquid bottle stopper, usually pry open with tweezers or scissors, laborious and easy to pry plug, some acidic liquid will corrode metal tweezers, while acidic Liquid is also easily contaminated. So, I designed to be easy and light