Ключевые слова: asian, beaker, biology, boy, boys, chemical, chemist, chemistry, child, childhood, classroom, concept, development, discovery, education, elementary, equipment, experiment, experiments, girl, glass, happy, isolated, kid, knowledge, lab, laboratory, learn, liquid, magic, medicine, organic, people, playing, primary, research, school, schoolboy, science, scientific, scientist, smile, student, studio, study, test, tool, tube, white, young,