USE OF THE PhET APPLICATION TO IMPROVE JUNIOR HIGH SCHOOL STUDENTS SCIENCE PROCESSING SKILLS ON LIQUID PREASSURE MATERIALS

This research aimed to compare the effectiveness of science process skills using the PhET application and real laboratory activities on liquid pressure materials. This research method uses Quasi Experimental. Data was obtained using test and questionnaire methods which were then analyzed quantitatively descriptively. The aspects of science process skills examined in this research are observation, inference, measurement, communicating, classifying, predicting, controlling variables, making hypotheses, interpreting data, and conducting experiments. The results of the research show that the experimental class is more effective in improving science process skills in the aspects of inference, measurement, classifying, controlling variables, making hypotheses, interpreting data, and conducting experiments compared to the control class as proven by the results of the effect size is 0.76 in the large category with a standard error of 0,26. Apart from that, it is supported by student responses which show that the percentage of responses in the experimental class that uses the PhET application is higher compared to the control class that uses real laboratory activities. The implications of this research show that to improve students' science process skills, teachers can use the PhET application on liquid pressure material or other materials that are integrated in the PhET application, such as vibrations and waves, dynamic electricity, forces, movement and force, etc.

Keywords: science process skills, PhET applications, real laboratory activities