Ключевые слова: biology, boy, caucasian, chemist, chemistry, child, childhood, class, classroom, cute, discovery, education, elementary, equipment, experiment, female, fun, girl, glasses, happy, kid, kindergarten, knowledge, lab, laboratory, learn, learning, lesson, little, microscope, people, person, preschool, research, school, science, scientific, scientist, student, study, studying, teacher, teaching, technology, test, tube, uniform, young,