The science process skills of children aged 5-6 years at Al Azhar Islamic Kindergarten 54 Pekanbaru have not been as expected. Therefore, a certain treatment is needed, this uses water cycle media. The purpose of this study is to determine and prove the effect of the use of water cycle media on the science process skills of children aged 5-6 years in Al Azhar Islamic Kindergarten 54 Pekanbaru. …