On Friday, November 27th, 2015, five outstanding students from PSIS in water rocket building and launching, two instructors, and one observer were invited to the occasion of the twenty-second session of the Asia-Pacific Regional Space Agency Forum (APRSAF-22), a Water Rocket Event which was held in Bali, Indonesia on 28-29 November, 2015. The invited instructors were Mr. Seng Muny and Mr. Tek Sidaro, and the observer was Mr. Chhan Kaknika while the students were Miss Thon Seryratha, Mr. Sovann Mathew, Mr. Ros Sochamroeun, Mr. Sareoun Atith Udom, Miss Sam So Marlin.

This year Water Rocket Event was held at Hotel Oranjje and Niti Mandala Renon Field. More than 50 students from 13 countries participated in the event and enjoyed the launch competition with plastic bottle rockets made by themselves. Water Rocket Event is an annual competition which aims to promote interests of youth to science. The event has been playing a very important role to providing such a great opportunity to educators and students to interact and share science education among one another, in particular, space science education. At the same time, the event is also a chance for culture sharing and more.