CAS ID #: 67-64-1. Summary: Acetone is a manufactured chemical that is also found naturally in the environment. It is a colorless liquid with a distinct smell and taste.It evaporates easily, is flammable, and dissolves in water.It is also called dimethyl ketone, 2-propanone, and beta-ketopropane. Acetone is used to make plastic, fibers, drugs, and other chemicals. It is also used to dissolve other substances.t evaporates easily, is flammable, and dissolves in water. It is also called dimethyl ketone, 2-propanone, and beta-ketopropane. Acetone is used to make plastic, fibers, drugs, and other chemicals. It is also used to dissolve other substances.
Validity and Reliability. . . . . The principles of validity and reliability are fundamental cornerstones of the scientific method. This article is a part of the guide:
The standard definition of the scientific method, â as provided by the Oxford English Dictionary â is: âA method or procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.â.he essential purpose of science is the creation of theories or âhypothesesâ that can consistently and reliably explain or reproduce observed phenomena. The scientific method is the method of creating these reliable and reproducible theories.