Scholarships do not need to be repaid, and they can be based on all kinds of criteria. Many are need-based or merit-based, but there are thousands of scholarships based on interests, ethnicity, sports, community service, and more.
Scholarships can come directly from your college or university, but private organizations also provide scholarships as well. It is a good idea to do some research on scholarships you might be eligible for--check out the sites listed here, ask sports coaches and teachers, talk to your GEAR UP Coaches, and sometimes even employers or places of worship offer scholarships.
Arizona GEAR UP provides an up-to-date scholarship list on their website.
Websites like Fastweb, College Board, and Niche have their own scholarship search engines that can help you find free money based on your information and interests.