GASP! He knew this one! More because he had been super bored at home and decided to look in some textbooks not that he was ever going to admit that out loud. This time, the Gryffindor did raise his hand in the air as he tried to balance on his chair. "Earth spins around the sun!" he said. "Or the sun spins around the Earth...i don't know..i don't care..." and he shrugged his shoulders.