Tran Kim Thanh Vu and Dinh Thi Thu Ha from the Da Teh High School in the Central Highland province of Lam Dong will make a presentation on the organic waste treatment that, they say, will change the habit of waste collection and treatment in households and raise awareness of environmental protection among people, especially pupils.

Meanwhile, Doan Thi Xuan Phuong, also from Lam Dong, will present a paper on how toads kill insects. The paper is expected to help explain how insecticide residue affects the foodstuff hygiene and safety.

Nguyen Van Ha Uy, a 12^th-form pupil from the Le Quy Don High School in the central city of Da Nang, will try to persuade organisers with a new method to measure two points in space.

This year, Intel ISEF, the world’s largest pre-college science fair, will gather more than 1,600 pupils from 59 countries and territories, to compete for awards and scholarships worth nearly US$4 million.

Competition in 17 science and engineering categories demonstrates understanding of scientific fundamentals combined with creativity in project areas such as energy, transportation, environmental science, medicine, health sciences, chemistry, behavioral and social sciences among others.