During the competition, each team must complete five written field tests, each dealing with a different topic. These tests consist of various question types, including identifications and hands-on assessments. Each team must also prepare an oral presentation on the current issue topic, which the team presents to a panel of judges. An important element of the competition is the understanding that each topic is interrelated, and understanding human effects on the environment and how human activities connect with ecosystem functions. Each test is scored out of 100 points, with the presentation being scored out of 200 points. The team with the highest cumulative total of points at the end of the scoring is the winning team. Recognition is also given to teams with the highest scoring in each of the five categories.