The 8th grade visits Catholic High Schools during the fall, they organize and run the school’s field day, and are in charge of bringing food to needy families during Thanksgiving and Christmas. They participate in various activities to promote a sense of unity and to raise money for their graduation and 8th grade trip. Each graduating class selects class colors, a class song, a class flower, and a class T-shirt. They take a three-day, two-night trip to San Antonio and celebrate graduation with breakfast, a Church ceremony, and afterward a dance.

Cheerleaders learn the fundamentals of cheer, dance, tumbling, and stunting at summer camp. Cheerleaders prepare Pep Rallies, banners, and spirit sticks to encourage school spirit for the football, volleyball, basketball, baseball, and softball sports programs, as well as other student organizations.

Children in grades 2nd through 8th may participate in choir. The choir performs liturgical songs at the weekly masses, as well as visits elderly people in area assisted living homes to perform for them.

The St. Ambrose Chapter of the National Junior Beta Club is open to students in sixth through eighth grade. Teacher recommendation, grades, and conduct determine membership. It is a leadership-service club whose purpose is to encourage effort and reward merit and promote those qualities of character that make for a good citizen. Members participate in various service projects throughout the year and attend the Texas State Beta Convention. At the convention, students participate in various academic, talent, and art competitions. This honor society allows a place for students to shine outside of athletics.

This is a fast-paced game show-type competition where students are formed into three – four player teams. They compete against other teams in a question-and-answer format based on current events, history, and general knowledge. Prep Bowl encourages teamwork and cooperation as well as allows students to demonstrate their abilities and overall knowledge.

The sports program offered at St. Ambrose is an excellent way to show school spirit, sportsmanship, and athletic ability. St. Ambrose offers boys basketball, football, track, and baseball. The sports for girls are cheerleading, basketball, volleyball, track, and softball. All students must meet behavior and academic eligibility in order to participate in sports and extracurricular activities.

The purpose of the Student Council is to: arouse school spirit, encourage scholarship, promote good citizenship, advance the welfare of the school, and sponsor school dances. Student Council involves the total school. There is an executive board that includes a president, vice president, secretary, treasurer, and class representatives.