The last two grants offered by the Federal Government are the Teach Grant and the SMART Grant. They both work very similarly to the Pell Grant in that they do not have to be repaid, however there are specific qualifications for each grant. For specifics visit here.
Federal College Work Study Program
This program works basically like a part time job with the check coming from the Federal Government. Your eligibility is determined by your financial need and the availability of positions. Every college receives a certain allotment of funds that are budgeted out to deserving students. Typically the way it works, is that faculty and staff around campus will request to have positions filled. Then the work study coordinator will work to fill positions based on eligible students.
The pay is not excellent, only about $7.50-$9.50 per hour, but the best part about it is that you have the opportunity to get placed into a job within your field of study. This will give you some real world experience that will be very beneficial to your career once you begin.