“胜日寻芳泗水滨,无边光景一时新。等闲识得东风面,万紫千红总是春。”这是宋朝朱熹在一个春光明媚的日子观花赏草,看到的万紫千红的春天景致。同学们,你们知道为什么花朵会呈现出不同的颜色吗?让我们走进化学殿堂,以一个化学小实验来让花朵变变色吧。实验需要准备的材料白纸(A4或B5均可)、紫甘蓝(即紫卷心菜)、白醋(酸性溶液)、食用纯碱(苏打)、蒸馏水(或白开水)。实验方法首先将食用纯碱溶在水中(碱性溶液),然后取紫甘蓝颜色较深、水分较多的部位在白纸上划三条清晰的 “This is the Song of the Zhu Xi in a beautiful view of spring flowers, see the colorful spring scenery.” Classmates, do you know why the flowers show different colors? Let’s walk into the Hall of Chemistry and change the color of the flowers in a chemistry experiment. Materials needed for the experiment: white paper (A4 or B5), purple cabbage (purple cabbage), white vinegar (acid solution), soda ash, distilled water (or boiled water). Experimental method First, the consumption of soda ash dissolved in water (alkaline solution), and then take purple cabbage darker color, parts of the more water draw three clear white