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PS ch1
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; test 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 Variable | factor that, as it changes, affects the measure of another variable |
| Constant | in an experiment, a variable that does not change when other variables do |
| Control | stranded used for comparison of test results in an experiment |
| Bias | occurs when a scientist's expectation change how the results 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 |
| 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 |
| Technology | application of science to help people |