In the above diagram, we are brainstorming about an experiment set-up that would answer a specific question we have about walnut twig beetle and thousand cankers disease. As scientists we basically either describe "what's there?" or explain how something works. The scientific method is the process by which we, hopefully, get to those answers. An observation in the natural world provokes a question which leads to the development of a hypothesis which can be tested by an experiment.
P.S. And in the interest of preventing the need to solve such problems, don't move firewood.
