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Sci Meth HRH
Scientific Method Vocabulary
| Term | Definition |
|---|---|
| Scientific method | Organized set of investigation procedures that can include stating a problem, forming a hypothesis, researching & gathering information, testing a hypothesis, analyzing data, & drawing conclusions |
| Hypothesis | Educated guess using what you know & 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 can change as a result of changes in the other variable. |
| 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 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 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 & 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. |
| Standard | Exact, agreed-upon quantity used for comparison. |
| SI | International System of Units- the improved, universally accepted version of the metric system that is based on multiples of ten & includes the meter (m), liter (L), & kilogram (kg) |
| Volume | Amount of space occupied by an object |
| Mass | Amount of matter in an object |
| Density | Mass per unit volume of a material |
| Graph | Visual display of information or data that can provide a quick way to communicate a lot of information & allow scientists to observe patterns. |