Today at school-lyceum №20 a single ecological class hour was held for students in grades 8-11. The event is timed to coincide with World Habitat Day - an international holiday designed to draw the attention of mankind to the problem of preserving the habitat of fauna on planet Earth. The purpose of the ecological classroom hour is to attract the younger generation to the respect for natural resources such as water, air protection, proper waste disposal. Such events contribute to educate students of environmental awareness and form the development of healthy environmental habits, eco-relaxation, separate collection of solid waste, proper nutrition and much more.