Vanda is an International Science Competition held annually around the globe. It focuses on the studentâs ability to think critically and creatively to pick out hidden information to aid them in solving the question. Vanda is for students from primary 3 to secondary 4 (Grade 3 to Grade 11). It follows the Singapore School Science Syllabus with a focus on higher order thinking skills. This allows participants to do better compared to pureOlympiad papers since they are familiar with most of the topics.