Inquestigate
To go on a quest to investigate something. One might inquestigate the disappearance of an object, or go on an inquestigation to ask for information.
Where's my textbook? We better inquestigate that.
How do you put the acid in the test-tube? It's time for an inquestigation.
How do you put the acid in the test-tube? It's time for an inquestigation.