一天晚上,我在书上看到了一个科学实验——用醋酸或柠檬汁当墨水可以写出隐形字。我觉得很有趣,便决定自己动手做一做。我先向奶奶要醋酸,奶奶说:“没有。”我又向奶奶要柠檬酸,可奶奶又说:“柠檬酸也没有呀。”我可急坏了,什么都没有,这可怎么办呀?这时我突然想到一个办法,广柑中不是含有果酸吗,于是便决定用广柑汁代替柠檬酸试一试。我把水果盘中的广柑拿出来,将它切开,使劲把汁水涅出来,广柑汁溅了我一身,才好不容易挤出一小杯。 One night I saw a scientific experiment on the book - invisibility words can be written in inks when using acetic acid or lemon juice. I think it is very interesting, they decided to do it yourself. I first want to acetic acid from my grandmother, my grandmother said: “No.” I again to the grandmother to citric acid, but grandmother added: “citric acid is not ah.” I can be anxious, nothing, how can this be done At this moment I suddenly thought of a way, not containing citric acid in Cantaloupe, so decided to use citrus juice instead of citric acid try. I took out the wide-corned fruit in the fruit plate, cut it open, tried my best to get the juice out, and the wide-bodied orange juice splashed me, so it was hard to squeeze out a small cup.