Ключевые слова: analyzing, apple, background, biology, blackboard, book, class, classroom, collect, college, conceptual, droughts, drying, education, herb, herbarium, humanities, intelligent, knowledge, laboratory, latin, learn, lesson, loupe, magnifying glass, microscope, nature, notes, paper, pen, photosynthesis, plant, retro, school, science, student, study, teach, teacher, theory, university, vintage, write,