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PS Ch. 1
Vocab
Term | Definition |
---|---|
Scientific Method | Organized set of investigation procedures that can include stating a problem, forming a hypothesis, researching and gathering information, testing a hypothesis, analyzing data, and drawing conclusions. |
Hypothesis | Educated guess using what you know and what you observe. |
Experiment | Organized procedure for testing a hypothesis; tests the effect of one thing on another under controlled conditions. |
Variable | Factor that can cause a change in the results of an experiment. |
Dependent Variable | Factor that changes as a result of changes in the other variables. |
Independent Varable | Factor that, as it changes, affects the measure of another variable. |
Constant | In an experiment, a variable that does not when other variables change. |
Control | Standard used for comparison of test results in an experiment. |
Bias | Occurs when a scientist's expectations of an experiment are viewed. |
Model | Can be used to represent an idea, object, or event that is too big, too small, too complex, or too dangerous to observe or test directly. |
Thoery | Explanation of things or events that is based on knowledge gained from many observations and investigations. |
Scientific Law | Statement about what happens in nature that seems to be true all the time; does not explain why or how something happens. |
Technology | Application of science to help people. |