“…These skills are divided into two groups: basic science process skills (BSPS) and integrated science process skills (ISPS). Regarding the complexity of the skills, BSPS and ISPS are composed of eight skills (observing, classifying, predicting, inferring, measuring, using numbers, using space/time relationship, and communicating) and five skills (operational definition, identifying and controlling variables, formulating hypothesis, experimenting, and interpreting data). − …”