For the International Year of Physics (2005), the House of Experiments in Slovenia created a set of 50 posters designed to bring physics to the public.  The format is question and answer.  50 questions that are relevant to everyday situations were chosen and  short but scientifically correct and informative answers were provided.  One teacher commented:  “These are great!  They are just the type of question that students like to ask.”  I saved the image as a pdf and printed it off.

If you would like a scientific method poster for your classroom, you can find one at  It is a pdf file.  I am sure you can enlarge it with a plotter printer.