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PS OGT PRACTICE
Scientific Inquiry
| Question | Answer |
|---|---|
| QUALITATIVE OBSERVATIONS | made by gathering information using your senses about events or processes |
| QUANTITATIVE OBSERVATIONS | involve measurement; should include number and a unit. |
| INFERENCE | guess based on prior knowledge or experience; may be incorrect if data incomplete. |
| HYPOTHESIS | proposed scientific explanation for a set of observations. |
| INDEPENDENT VARIABLE | also called the manipulated variable; part of experiment that is deliberately changed. There should only be ONE manipulated variable in a scientific experiment. |
| DEPENDENT VARIABLE | also called the responding variable; the variable that is observed and changes in response to the independent (manipulated) variable |
| CONTROL GROUP | not exposed to the independent variable so that it can be used as COMPARISON to the experimental data. |