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Chapter 1.3

Vocabulary

TermDefinition
scientific method the series of steps followed to solve problems.
observation the act of perceiving a natural occurrence that causes someone to pose a question.
hypothesis a proposed explanation for the way a particular aspect of the natural world functions.
prediction a statement that forecasts what would happen in a test situation if the hypothesis were true.
experiment used to test a hypothesis and its predictions.
control group provides a normal standard against which the biologist can compare results of the experimental group.
experimental group identical to the control except for the independent variable.
independent variable the factor that is deliberately manipulated.
dependent variable the factor that that changes as a result of manipulation or one or more other factors
theory an explanation for some phenomenon that is based on observation, experiments, and reasoning; that is supported by evidence and doesn't conflict with any other experimental results or observations.
peer review the process in which experts in a given field examine the results and conclusions of a scientist's study before that study is accepted for publications.
Created by: FarlowA20