Is there such thing as a real work from home (online jobs) for students?

I wanted a flexible job that I can do part-time or something while I go to college to earn a degree.

Is it really possible? I have tried looking everywhere in the Internet, but can't seem to find a trustful, right one. I can only find some offers that asks you to pay like $50 or so to get a free-kit; etc.
I don't believe that...

Can anyone please help me?

Thank you so much in advance!

^_^