This link is a bit old 2013,
https://www.uow.edu.au/handbook/yr2013/ug/H13006068.html, but it says
Entry Requirements / Assumed Knowledge
Entry is any two units of English plus Mathematics. Recommended studies: HSC Mathematics Ext. 1 plus Chemistry or Physics. Entry is open to students who have gained an Australian Tertiary Admission Rank (ATAR) or equivalent at a level determined by UOW for this calendar year.