Open Round
HUSO-China consists of two rounds of written exams spanning Biology, Chemistry, Environmental Science, Physics, and Mathematics. These encourage students to build a strong foundation across multiple fields of STEM and introduce them to interdisciplinary nature of science.
In the open exams, you will have 2.5 hours to complete the test packet which contains all 5 subjects and can be done in any order. Open exams are multiple choice only and each question is +1 for a correct answer and -0.25 for an incorrect answer. Your subject score is calculated relative to how well others perform on that subject and your total score is the sum of your best 4 subject scores.