North Carolina Science Olympiad (NCSO) is a state-wide competition held at various locations to promote knowledge in a variety of scientific areas for elementary, middle, and high school students. The competitions take place on Saturdays lasting from February to May. Volunteering options are flexible. You can choose to help in the morning, afternoon, or all day depending on your preference. The volunteering can be as simple as proctoring an exam and grading it or involvement in judging various science projects. Check out the links below for more details.