An observational science is a science where it is not possible to construct controlled experiments in the area under study.

Other examples of necessarily observational sciences include geology, paleontology, epidemiology, and much of the social sciences.

My previous work had been a combination of experimental and observational sciences.

An ethnography is a specific kind of written observational science which provides an account of a particular culture, society, or community.

He uses common sense and elementary observational science to create artificial glaciers - an idea whose beauty lies in its immense practicality and incredible simplicity.

If anything can help us uncover the natures of things, it is not logic, but physics, and the other observational sciences.

In order for an observational science to be valid, confounding factors must be known and accounted for.

For most of its history, astronomy was a strictly observational science, and earlier astrophysicists based their theories largely on what astronomers could see.

There, the tradition of female participation in craft production enabled some women to become involved in observational science, especially astronomy.

From an observational science it developed a systematic way of approaching the nervous system and possible interventions in neurological disease.