Ключевые слова: bang, biology, biotechnology, blackboard, bottle, boy, chemist, chemistry, child, childhood, children, dangerous, discovery, education, emotional, equipment, experiment, explosion, female, fire, formula, fun, funny, girl, glass, glasses, kid, knowledge, lab, laboratory, learning, male, medicine, microscope, people, preschool, research, school, science, scientist, shock, smart, smoke, student, study, surprised, test, testtube, two, young,