A scientist tries to understand everything. They ask questions to see how things work and find explanations to their problems. They think critically and prove everything. A nonscientist accepts any knowledge as truth and doesn’t filter it. They remain complacent about what they already know and don’t try to achieve more or understand what is unknown.
If a teacher returned a unit test with a low grade to a nonscientist, they would either refuse to accept it and believe they should have gotten a higher mark or accept it without trying to achieve more. A scientist would question it if they believed they deserved better, and if the answers were satisfactory, they would develop a way to improve, always learning as they went.