After the school day, students are encouraged to participate in extracurricular activities that meet their interests. Extracurricular activities are usually conducted outside the school day and students do not receive grades for their participation in such an organization. Extracurricular activities are found to have many benefits to participation. Some of these benefits include raising academic and social and Leadership skills. Involvement in extracurricular activities also helps at-risk students. Researchers John Mahoney and Robert Cairns found that involvement in extracurricular activities supports the at-risk student by maintaining, enhancing and strengthening the student-school relationship (Silliker , 1997). The stronger this relationship is, the lesser the chance an at-risk student will drop out of school.

Faculty members sponsor such activities as Chess Club, Paintball Team Club, Martial Arts, Lady Dragons Cheerleading, Kingpin Bowling, Band, Choir, Student Newspaper, Writers Circle Art Club, Drama Club and Basketball. During breaks and summer vacation, faculty members sponsored educational trips to international destinations including Russia, France, Germany, Netherlands, Turkey, Indonesia, Thailand, and Malaysia, as well American locations such as Boston, MA, Chicago, New York City, Niagara Falls, Columbus and Indianapolis. Horizon's activities and trips are designed to help students become well-rounded community members.

To promote enrichment learning, Horizon teachers encourage their students to participate in local and national festivals and competitions. Advanced Math and Science teams train for all levels of competition. In the three years since the establishment of the school, H.S.A. students have participated successfully in the North Eastern Ohio Science Fair and have created their own Horizon Festival for Sciences and Liberal Art Tunnel Fair. Students compete within their classes to learn about their hometown through the Horizon Knows Cleveland, OH Competition. This contest is designed to introduce students to the culture and history of the area in which they live. Through these and other contests, students form a sense of the place they will be expected to fill in the career world.

In a world of constantly changing educational and technological needs, the Horizon Science Academy of Cleveland, boldly and with innovation, prepares today's youth for the challenges of tomorrow.