Ключевые слова: 40s, academic, alphabet, analyzing, assisting, back to school, beaker, blonde hair, boy, casual clothing, caucasian, chemical, chemistry, child, childhood, class, classroom, composite image, computer graphic, concentration, digital, digital composite, digitally generated image, discovery, dreadlock, education, elementary, elementary school, experiment, experimentation, female, flasks, girl, graphic, guidance, holding, illustration, innocence, intelligence, kids, knowledge, laboratory, learn, learning, lifestyle, looking, male, mature adult, microscope, mixedrace, molecular structure, molecule, practice, primary, protection, protective eyewear, research, school, schoolboy, schoolchild, schoolgirl, science, scrutiny, standing, student, studio shot, study, studying, symbol, table, teacher, test tube, test tube rack, together, white background, woman,