A scientific poll uses ________ sampling techniques.

Ideally, everything in the experimental situation except the __________ is held constant.

A true experiment involves the _____ of the independent variable.

An accumulation of many anomalies against an accepted truth is known as ?

________ is a form of knowledge we believe to be true because it comes from authoritative sources, such as parents, teachers, and professional figures

Something that fits into the paradigms of normal science is known as Anomaly.