The goals of this study are to develop worksheets that valid and effective to improve students’ scientific creativity in fundamental physics course. Designs of this development are include preliminary research, prototype phase, and assessment phase. The pilot study of worksheets was carried out by 30 students of Physics Education FKIP at Lambung Mangkurat University Banjarmasin in March to July 2016. Data collected from validation by experts of physics learning, tests, and qualitative descriptive analysis. Data were analyzed by descriptive quantitative and qualitative. Design of worksheets include identity, learning indicators, necessary of creative learning, creatively problem finding, creatively experiment designing, creatively science problem solving, and strengthening scientific creativity. The validation results of worksheets include design, format, content, language, presentation, support innovation and learning quality in a highly valid criterion. It is developed according to the needs and logically arranged by decree of renewal of scientific knowledge. A lot of students' scientific creativity (creatively problem finding, creatively experiment designing, and creatively science problem solving) those have creative criteria/highly creative criteria. And increasing students’ scientific creativity before and after the learning process as many as 57% is in high criteria, 43% are in the middle criteria, and no students in the less criteria. The conclusion is the worksheet that developed in this research, valid and effective to improve students’ scientific creativity in fundamental physics course.