科普
kē pǔ · HSK 7
popular science
🔬 科 (science) + 普 (universal/widespread) = making science widespread
科 is the science/subject character; 普 means universal or general (as in 普通 ordinary). Together: spreading science to everyone, i.e. popular science. Short for 科學普及 / 科学普及.
科 — grain 禾 + measure 斗
科 combines 禾 (grain) and 斗 (a dipper/measure), originally depicting the act of measuring or grading grain. From this, it extended to mean classification, category, and branch of study. Today it commonly appears in words for science (科学) and academic disciplines.