You don't have to go to Geulph, there are much better universities in toronto. Have you applied to york or ryerson? If not, try carleton,
Well I think ryerson engineering is closed at this time, but certain universities are still open, such as carleton, UOIT, lakehead, and others as well, just check at OUAC
Also, in all honesty i do not recommend the science degree, I mean it's up to you, but you will have much better job opportunities with an engineering degree and a much broader career choice.
Also do not pick universities based on their reputation, upon graduation, employers see a degree, no GPA, no school name, Just a degree and work experience (so make sure you do co-op).
And no you cannot transfer with the science degree into engineering, us engineers have to take specific engineering courses all 4 years, the few electives we have, are chosen from a small list of engineering-specific-electives.
Go for the engineering at another university bro, trust me, you'll be way better off.