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PS Ch1
Vocabulary
| 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. (p.7) |
| Hypothesis | Educated guess using what you know and what you observe. (p.8) |
| Experiment | Organized procedure for testing a hypothesis; tests the effect of one thing on another under controlled conditions. (p.8) |
| Variable | Factor that can cause a change in the results of an experiment. (p.9) |
| Dependent Variable | Factor that changes as a result of changes in the other variables. (p.9) |
| Independent Variable | Factor that, as it changes, affects the measure of another variable. (p.9) |
| Constant | In an experiment, a variable that does not change when other variables change. (p.9) |
| Control | Standard used for comparison of test results in an experiment. (p.9) |
| Bias | Occurs when a scientist's expectations change how the results of an experiment are viewed. (p.10) |
| Model | Can be used to represent an idea, object, or event that is too big, too small, or too complex, or too dangerous to observe or test directly. (p.11) |
| Theory | Explanation of things or events that is based on knowledge gained from many observations and investigations. (p.12) |
| Scientific Law | Statement about what happens in nature that seems to be true all the time; does not explain why or how something happens. (p.12) |
| Technology | Application of science to help people. (p.13) |
Created by:
Kimberlysparks
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