click below
click below
Normal Size Small Size show me how
PS Ch 1
Vocab
Term | Definition |
---|---|
Hypothesis | Educated guess using what you knowand what you observe |
Experiment | Organized produre for testing a hypothesis; tests the effect of one hing on another under controlled conditions |
Variable | Factor that can cause a achange in the results of an experiment |
Dependent Variable | Factor that changes as a result of changes in the other variables |
Independent Variable | Factor that, as it chagnes, affects the measure of another variable |
Constant | In an experiment, a variable that does not change when other variables change |
Control | Standard used for comparison of test results in an experiment |
Bias | Occurs when a scientist's expectations change how the results of an experiment are viewed |
Model | Can be used tto represent an idea, object, or event that is too big, too small, too complex, or too dangerous to observe or test directly |
Theory | 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 |
Scientific Method | Organized fset of investigation procedures that can include stating a problem, forming a hypothesis, researching adn gathering information, testing a hypothesis, analyzing data, and drawing conlusions |
Technology | Application of science to help people |