Ключевые слова: analysis, biochemistry, biology, biotechnology, chemical, chemist, chemistry, child, childhood, children, class, classroom, development, discovery, dropper, education, elementary, elementary age, elementary school, equipment, flask, girl, innovation, kid, knowledge, lab, laboratory, learn, learning, lesson, microscope, organism, primary school, research, school, schoolchild, schoolgirl, science, scientific, scientist, smart, stem, student, study, studying, substance, technology, test, test tube, tube,