Ключевые слова: academic, alphabet, atom, biochemistry, biology, black, boy, capital letter, caucasian, cheerful, chemical, chemistry, child, childhood, composite image, composition, computer graphic, confidence, cute, development, digital, digital composite, digitally generated image, dna, education, elementary, elementary school, female, formula, friends, friendship, girl, graphic, half length, happy, helix, illustration, innocence, kids, knowledge, learn, learning, letter, male, molecular structure, molecule, primary, pupil, school, school uniform, schoolbag, schoolboy, schoolchild, schoolgirl, science, scientific, smiling, standing, student, studio shot, studying, symbol, terrace, together, white background,