The science process skills of children aged 5-6 years at TK IT Insan Teladan Pekanbaru are not as expected. Therefore, a certain treatment is needed, this is using rotation earth media. The purpose of this study was to determine and prove the effect of using rotation earth media on the science process skills of children aged 5-6 years at TK IT Insan Teladan Pekanbaru. This type of research is a…