The Astronomical Society of University of Colombo has proven to be the oldest Astronomical Society in Sri Lanka, which conducted a vast number of successful projects all over the country during the past years. Among these projects, “Star Quest” is one of the major projects that is organized by combining all the schools in Sri Lanka. “Star Quest” is an all-island inter-school astronomical quiz competition which is held annually at the university premises. It was started in 2007 and is the very first All Island Inter-School Astronomical Quiz Competition ever held in Sri Lanka. Schools from all around the country are invited. Out of 50 teams, the best four advance to the semifinals and the best two compete in the final. Students from any grade can participate. The top four places are awarded with medals and certificates. The purpose of this project is to select the inter-school quiz team with the best astronomical knowledge and to enhance the interest in astronomy among school students.