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Bob Jones Chpt 1.3

Key Terms

QuestionAnswer
Scientific Method A logical method of problem solving that involves observing and reaching a conclusion.
Research An investigation into a topic often carried on by reading, inquiry, or scientific observation.
Hypothesis An educated guess about the solution to a problem; helps define and direct an experiment.
Survey A scientific study used to determine what exists or what is a common practice in an area.
Data The recorded information from an experiment or survey.
Controlled experiment An experiment testing two identical groups for a single variable.
Independent variable The variable in a controlled experiment that is manipulated by the researcher; also called the experimental variable.
Control group The group in a n experiment that is not exposed to the experimental variable.
Experimental group The group in an experiment that is exposed to the experimental, or independent, variable.
Dependent variable The variable in a controlled experiment that shows the effect of the treatment.
Biogenesis The concept that life comes only from pre-existing life.
Created by: LWelton
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