1. Scientific Method

2. My 4 out of 5 Rule

3. If you make an observation

4. Develop a hypothesis to explain it

5. Then carry our further experiments to test the validity of your Hypothesis

6. …5 would be good!

7. If 4 observations out of 5 fit

8. You are almost certainly right

9. If only 1 out of 5 fits

10. Your are almost certainly wrong

11. In fact if 4/5 fit there is a 99.9% probability that the experiment that does not fit is in error in some way

13. … and you have a true theory, a Law that works and a fact