On-line Questions are being uploaded again after the Summer School. All students-even the directly connected ones-have to take this test to become the final representatives. Second grade students in the high school take this test. This test is counted 20 percent when KCS chooses the final representatives of South Korea. In this test, most of the questions are related to Organic Chemistry. 15 students directly connected from the Summer School 2 and 15 students who got a good score in the Test 4 can join the Winter School 2.