We conducted a series of activities related to cloud observation. We watched the clouds trough the "Cloud window", watched various educational documentaries and read encyclopedias and picture book. We made a poster in which we divided the clouds according too height and classified and named them according to the poster. In this way, children developed speech, acquisition of new concepts and logical thinking. We played various games (mathematical games, manipulative board games, games to stimulate speech, movement games and singing games). We researched the weather and entered data in to the weather calendar every day. We conducted several experiments related to the formation of clouds and precipitation. We expressed ourselves artistically with different techniques and materials.