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9Sci CH1
Scientific Method
Term | Definition |
---|---|
technology | the practical use of scientific information to improve the quality of human life |
physical science | the study of matter and energy |
model | a symbolic representation of an idea, system or structure to make something understandable |
observation | using your senses to gather information |
hypothesis | a testable prediction used to see how something works or to solve a problem |
theory | the most logical explanation of way things work the way they do |
A theory | former hypothesis that has been tested with repeated experiments and observations and found to always work |
scientific law | a rule that describes, but doesn’t explain |
A scientific law | a pattern in nature and predicts what will happen under specific conditions |
experiment | an organized procedure for testing a hypothesis |
control | a standard for comparison in an experiment |
constant | a factor that does not change in an experiment |
independent variable | a factor that is changed by the experimenter |
dependent variable | the factor that changes because of the independent variable |