The Science fair judge is tough to impress.
The judge did not recognize Miss Nakadai's miniature planet as a model of Cybertron. He was probably sorry for asking if Mr. Darby's project was operational, as it promptly flipped out and broke a door on its way out of the room. And he likely should have trusted his better judgment when he asked if Mr. Esquivel's mechanical volcano was active; its eruption literally shot straight through the roof and into the sky beyond.
Needless to say, none of the three students got an especially high mark.