Ключевые слова: africa, asia, atlas, attentive, australia, blackboard, chalk, child, class, country, discovery, dream, ecology, education, elementary school, environment, equator, ethnicity, eurasia, first class, geography, girl, globe, idea, interest, knowledge, landmark, latitude, layout, longitude, map, mineral resources, north america, ocean, population, science, sea, sky, south america, space, student, success, travel, tutorial, world,