The research aimed to analyze the potency of science process skills (SPS) which developed in the student worksheet. This research was content analysis. The population of this research was student worksheet in Yogyakarta based on curriculum 2013. Samples were taken with a purposive sampling technique. The instrument of the data collection was an observation sheet science process skills (SPS) adapted from Rezba. Data of the research were analyzed using qualitative analysis techniques. The results of the research that 1) the science process skills (SPS) developed in student worksheet is basic science process skills (BSPS) and integrated science process skills (ISPS); 2) the basic science process skills (BSPS) that developed in biology worksheet is observing, inferring, classifying and communicating, while the integrated science process skills (ISPS) that developed in the worksheet is tabulating and graphing data, analyzing investigations, and experimenting. The science process skills (SPS) developed in student worksheet are in line with the type of science process skills (SPS) required in the formulation of the curriculum 2013 basic competencies.