I still remember i had once did a similar experiment when i was in primary school, where i boil off the chlorophyll and use a tooth brush to rip off the epithelial cell. What remain was the xylem and branches as a beatiful bookmark :))
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Yes this experiment is usually done by students when primary school. Students look very enthusiastic when doing this experiment. And many students are trying to use other leaves with their friends at home. Maybe your memory will also re-repeat time studying in school first. May you always be filled with memories of knowledge that has been obtained. :))