RIYADH: Saudi Arabia has picked up four awards at the annual International Mendeleev Chemistry Olympiad. The competition sees students from more than 30 countries to test their knowledge side by side. Six secondary school students represented the Kingdom four of which were awarded during a ceremony held remotely in Moscow on Monday. The students spent two years in intensive preparation as part of the Mawhiba Foundation. They spent more than 12,000 hours training and testing with the King Abdullah University of Science and Technology. The Kingdom has participated in international and regional scientific olympiads for 17 years and has taken home 18 awards in chemistry and over 408 in various fields of science.