15 January

Today we visited the factory of water. ,,Pirinspring'' is famous for producing water and distributing it to many cities and villages in whole Bulgaria. We learned a lot about the way water is produced and about the norms that have to be fulfilled for the water to be drunk.
Afterwards, we went to a nearby village of Ognyanovo to collect some water samples from the mineral springs. We came back to school and carried out different experiments with the samples.
At the end of the day we visited a local museum of the city in which we got acquainted with the history of Gotse Delczev and its inhabitants.