Thrissur: Speaker K. Radhakrishnan has urged students to utilise the advances in science and technology for social development. Speaking after inaugurating the State School Science Fair here on Monday, the Speaker said that scientific inventions should pave way for the betterment of society. Education Minister M.A. Baby said that the government had been implementing programmes to develop aptitude in science among students. Along with the science fair, maths and work experience melas will also be held at five venues in the city. The fair will conclude on January 1.