Ключевые слова: analysis, assay, bacteria, biology, blood, cells, chemical, chemistry, class, curly, dna, doctor, drink, environment, equipment, food, girl, hair, happy, health, high, hospital, industry, instrument, lab, laboratory, learning, mask, medical, medicine, microbe, microbiology, microscope, natur, petri, pharmaceutical, pollution, research, sample, school, science, scientific, scientist, student, test, test tube, water,