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12 Cards in this Set
- Front
- Back
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theory
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the most logical explanatio of why things work the way the way they do. a theory is a former hypothesis that has been tested with repeated experiments and obsevations and found always to work
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constant
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in an experiment, a factor that doesn't change
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physical science
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the study of of matter and energy; topics for study include chemistry and physics
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model
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a symbolic representation of an idea,system, or structure to make something understandable. models help ue solve problems and deal with things difficult to see because they are to large or too small
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scientific law
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a law that describes, but doesn't explain, a pattern in nature and predicts what will hapen under specific condiions
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experiment
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an organized procedure for testing a hypothesis, an experiment typically has a control and dependent and independent variable
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observation
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using your senses to gather information, in science instruments such as micrscopes and balancesto carefully gather accurate and detailed observations
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independent variable
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in an experiment, the factor adjusted to a different value by the experiment to see what effect it will have on the dependent variable
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technology
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the pratical use of scientific information to improve the quality ofhuman life
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hypothesis
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a testable prediction to see how something works to solve a problem
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dependent variable
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in a experiment, the factor whose value changes because change in the independent variable
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control
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in an experiment,a standard for comparison that is often needed to draw a meaningful conclusion
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