1. It is possible that the student keeps falling asleep from the lack of caffeine in his system. 2. Test: a. To test the hypothesis out I would bring in a cup of Cold Brew iced coffee from Starbucks as it is a high caffeine item from the store. I am altering conditions by introducing caffeine into the student's system. b. If the students stays awake then the hypothesis would be supported. c. If the student fell asleep after the introduction of caffeine in his system then the hypothesis would be proven false. 3. To provide an untestable, unfalsifiable example I would say that 5th-dimensional beings with untrackable technology were undetectably putting the student to sleep through the use of unreadable. untrackable, invisible sleeping darts causing the student to go to sleep.