The purpose of this thesis is to study the effect of reflective journal writing on science learning. Reflective journals are personal records of students' learning experiences. They are an application of self-evaluation of learning. Science, a part of knowledge or study, is based on truths and facts and on rational and applied activities including the logical study of the structure and behavior of the physical and natural world through observation and experiment. The main focus of this thesis is analyzing the effect of reflective journal writing in science; specifically, the effect of ...