Employees of the South-Eastern Territorial Administration of the Ministry of Ecology and Natural Resources of the Republic of Tatarstan conducted a tour into the world of microbiology for pupils of the 3rd grade of Municipal Budgetary Educational Institution “Secondary school No. 25 named after 70th anniversary of oil of Tatarstan in Almetyevsk”. The guys were told about the laboratory analysis of water and air condition studies, and also conducted a number of color experiments. A special delight among schoolchildren was caused by the dishes, where microorganisms are grown.