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17 Cards in this Set
- Front
- Back
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Scientific Method
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The organized approach that Science is organized by to learn how the natural world works.
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Observation
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The act of perceiving a natural occurrence that causes someone to pose a question.
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Hypotheses
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Is a proposed explanation for the way a particular aspect of the natural world functions.
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Prediction
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Is a statement that forecasts what would happen in a test situation of the gypotheses were true. A prediction is recorded for each hypotheses,
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Experiment
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Used to test a hypotheses and its predictions
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Control group
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Provides a normal standard against which the biologist can compare results of the experimental group.
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Experimental group
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Identical to the control group except for one factor. (Independent variable)
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Independent variable
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The one factor that is different for the experimental group.
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Manipulated variable
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When an experimenter manipulates the independent variable.
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Dependent variable (responding variable)
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The variable the scientist observes or measures which is affected by the independent variable.
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Theory
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When a set of related hypotheses is confirmed to be true many times.
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Peer Review
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Scientists who are experts in the field anonymously read and critique a research paper.
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What two principles make the scientific method a unique process?
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1. Events in the natural world have natural causes.
2. Uniformity: the ideal that the fundamental laws of nature operate the same way at all places and at all times. |
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What are the parts of a controlled experiment?
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Experimental group, control group and only ONE variable.
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Why is "its just a theory" misleading.
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Because scientists view a theory as highly tested and should be accepted as proven principles.
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What are the main steps in Scientific Method.
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Observation
Hypotheses Prediction Experiment |
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What is the difference between a Scientific hypotheses and a scientific theory.
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Hypotheses is the PROPOSED (unproven answer) to a question.
Theory is the proven answer to a question. |
