Ключевые слова: activity, adorable, baby, bearded, chemistry, child, childhood, children, dad, family, family day, father, fatherhood, fathers day, flask, hood, ideas, innovation, international childrens day, kid, learn, lifestyle, little, little children, little girl, little kid, love, melting, optics, parenthood, parenting, pathology, physic, primary, read, school biology, science, small, small girl, startup, students, teacher, team, test, test tube, text, trust, tube, upbringing, volumetric flask,