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天上的繁星一闪一闪亮晶晶,十分可爱,要是我们自己也能制造出这样的星光就好了!你别说,这样的“稀奇”景象还真能制造出来,不信你就按下面的方法来做吧!大试管、无水酒精、双氧水、深蓝色的纸、高锰酸钾、小勺子。1.先用试管夹夹住试管,往试管中倒入几毫升无水酒精,再加入等量的双氧水,然后小心晃动试管,让溶液混合。2.在不影响实验操作的亮度下,关上电灯,并在试管后面衬上深蓝色的纸,将一小勺高锰酸钾晶体慢慢撒入溶液中。随着晶体在溶液中缓缓下沉,你就可以看到灿
The twinkling stars in the sky shine, very cute, if we ourselves can create such a star just fine! You do not say, this “rare ” scene really can create it, do not believe you according to the following method To do it! Large test tube, anhydrous alcohol, hydrogen peroxide, dark blue paper, potassium permanganate, small spoon. 1. First clamp the test tube with a test tube, pour a few milliliters of anhydrous alcohol into the test tube, then add the same amount of hydrogen peroxide, and then carefully shake the test tube to allow the solution to mix. 2. Without affecting the brightness of the experimental operation, turn off the lamp, and a dark blue paper is placed behind the test tube, and a teaspoonful of potassium permanganate crystals are slowly poured into the solution. As the crystal sinks slowly in solution, you can see it