Which of the following scientific terms has the most evidence and observations?

A. an educated guess

B. a scientific law

C. a hypothesis

D. a theory

The correct answer should be B. a scientific law. A hypothesis is a belief by the scientist that may or may not be proven so it exists before evidence and observation, while a theory comes later. However, a law is observation itself and is always evidence of itself. There is no belief or lack of knowledge as to what will happen when it comes to laws. The law of action and reaction has plenty evidence and can easily be observed.