Phenomenon of religion and science has already happened around the scholars. Moreover on modern sciences, especially on natural sciences which is considered as a factor the emergence of theological crisis and give the impact on the rise on secularism and positivism. Al-Attas was not from a scientist and it seems like he is the outsider, yet he brave to criticize the western science. Automatically, he has formulation and unique thought about Islamic science. This research focuses on natural sciences of al-Attas theory and has three research questions. First, how is the correlation between metaphysics and physics as the basic of science? Second, how is the concept of natural science epistemologically? Third, how is about the implementation of Islamization of science, especially on natural science? This research is qualitative research with using descriptive-analytic method. The kind of this research is library research; the researcher collects the data from some literature and analyzes it. The method of this research is Content Analysis used to evaluate the statement and understand the components of the concept.
Finally, this research has three conclusions. First, human science-for this, is physics-must being equal with vertical knowledge contemplative to the absolute of reality. Second, the concept of natural sciences in the discipline of epistemology is divided into physics, chemist, biology, and also other science that are including technology. Intuition which is given as a source of additional methods in science, giving the impression of protecting one party only, that are Muslims. It is because how to obtain intuition can not be done by scientists or non-scientists of Islam and it is impossible to do by them. The last conclude of this research is explain about the scheme of al-Attas theory. Scheme of Islamization of al-Attas has a simplistic and exclusive impression that only directed to the Muslims only.
In the end, this theory also looks stiff for their support to the only Muslims and look at the values and ethics belongs only to Islam, so emerge the view knowledge Islamization, by Islam either for Islam. It will give the impression of force if it should be juxtaposed or labeled natural sciences Islam. It would be wise if the natural sciences-which in this case included in the science farḍu kifāyah according to al-Attas-adapted to Islamic values is not Islam labeled. Science is a measure that is based on religious values, applied to objective measures that are accepted by all people, across religious, ethnic, cultural and others. Thus, Islam became the values and ethics as well as being home with or graces of human civilization.