Most colleges and universities have explicit rules regarding intellectual or academic honesty. Students at the University of Maine at Augusta can check the Student Conduct Handbook to see what the rules are.
Failing to cite others' work properly in your own projects, even unintentionally, can have serious consequences! The mildest consequences for plagiarizing in a university setting range from receiving an 'F' on the assignment to a failing grade in the course; the most serious consequences can involve one being expelled from school.
A couple of basic points to remember: