Employees of the South-Eastern Territorial Administration of the Ministry of Ecology and Natural Resources of the Republic of Tatarstan organized an event called “Water Quality Day” for pupils of the Lesno-Kaleikinskiy Secondary School of Almetyevskiy district. During the interactive lesson, the pupils received important knowledge: they determined the value of water as a vital resource, found out which water can be considered clean and safe, conducted experiments demonstrating the properties of water, and repeated ways to take care of water resources.