Hi Gharbi
20% of students at Australian universities are from overseas. The vocational (VET) sector also attracts a large amount of international students.
General information on scholarships is
here. There are Australian government funded programs as well as those provided by each institution.
I did a search for Australian higher education (university) bachelor scholarships for international students and came up with these
Maths scholarships.
I�m not sure what experimental science is but these are the results for
science scholarships. (There is something not quite right about the hyperlink so when you get to the page you need to filter further by selecting Higher Education and Bachelor Degree.)
The result pages list the scholarships and you then click on the link that takes you the institutional website to then search for the relevant scholarship page.
This website is the organisation that represents all international students.
Cheers
Jayho