Discrepant events are surprising occurrences that challenge learners' preconceptions. These events puzzle students because the results are contrary to what they believe should happen. Due to the unexpected outcome, students experience cognitive disequilibrium, and this often leads to a desire to solve the problem. Discrepant events are great motivators. Often, even disinterested students are drawn into the discussion by their need to understand what just happened. Although it is best to have the students experience the events firsthand, there are many videos on YouTube that can be used to create a sense of wonder in students.