On college application status portals, there is a place to upload additional materials. Should I upload an abstract of my science research or the entire paper written after my research was done?
Depends on the school.
For most colleges, it says they just want an abstract, but read the directions of each college as they may vary.
What if they do not specify? They just say “academic work” or “science research.”
I can’t imagine any college admission officer would want to read a long science paper. My gut feeling would be to send the abstract and you can always include a line to say the entire paper is available upon request. But you can also contact the colleges and ask what they want.