Ключевые слова: academic, asian, beaker, biology, boy, chemical, chemist, chemistry, child, children, class, classroom, colorful, development, discovery, education, equipment, experiment, friendship, fun, girl, glasses, goggles, happy, kid, kids, knowledge, lab, laboratory, learning, liquid, medical, microscope, people, playing, preschool, primary, research, school, science, scientific, scientist, student, study, studying, technology, teenage, test, tube, tubes,