Ключевые слова: bio, biology, boy, child, childhood, class, concept, discovery, education, elementary, girl, group, happy, indoors, junior, kid, knowledge, lab, laboratory, learning, lesson, looking, microscope, modern, notebook, people, preteen, primary, pupil, research, school, schoolboy, schoolgirl, science, scientific, stem, student, study, studying, technology, workbook, writing, young,