In general, students' concentration tends to be positively correlated to their intention to use Moodle for natural sciences. Thus, we should recognize these users as not only system users but also learners. Students can also percevie its usability in terms of the opportunities it can offer. However, the relation be tween; positive attitudes towerds the system, its use and intention of use with perception of its usability, and ease of use is affected on a large scale by other factors.