Ключевые слова: ancient, animal, archaeologist, archaeology, background, bone, child, childhood, children, class, dark, desk, dinosaur, discovery, education, empty, evening, exploring, fossil, game, history, hobby, home, house, indoors, kid, laboratory, learning, leisure, lesson, little, model, nature, night, nobody, paleontology, person, play, prehistoric, professional, research, school, science, scientist, skeleton, skull, studying, table, teacher,