What is the difference between Observational Science and Historical Science?

Blessed: What is the difference between Observational Science and Historical Science?
My chem teacher says there are two basic scientific methods, Observational Science and Histrorical Science. How do they differ?

Answers and Views:

Answer by Iloveu
Observational science is an action way to describe science that is in the current, or in other terms a way to say that its being watched. Historical Science is a word that means what has been observed in the past, or what we have already discovered.

Answer by juston
In observational Science you actually Observ more things like you see more old timey things.In Historical Science you learn more about history

Answer by foggy
excessive wordiness that teaching faculties dream up to sound wise and complex. every discipline dreams up their little vocabularies to mark their territory. like bovine scatology. that is what it means.

Answer by catsi563
it depends on what you mean by “historical science” if by the baove you mean traditional science. then the differnece is the following.

traditional science is oft reffered to somewhat inaccurately as pure science. and to differentiate it from applied science which deals with the applications of scientific knowledge.

science deals with the pursuit and by use of the scientific methodology gathering of knowledge.

generally broken down into 2 categoriies

Natural sciences, which study natural phenomena
Social sciences, which study human behavior and societies

Observational science on the other hand is based on theories where it is not possible to construct controlled experiments in the area under study.

such areas include astronomy, geology, paleontology, epidemiology, and much of the social sciences. high energy physics also has some observational aspects as well.

In the social sciences, sociology and economics are generally held to be examples of observational sciences, because of the impracticability (not to mention dubious ethical status) of manipulating whole societies or economies for experimental purposes

fields of study can sometimes change from observational to experimental due to differing factors. comets are an example, being only observed untill mankind engineered the first man made comet collision