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Unit 1B Vocabulary
Science Vocabulary
Term | Definition |
---|---|
Mean | The sum of the number in a set of data divided by the number of items in the set. |
Median | The middle number in a data set when the data is arranged in numerical order. |
Mode | The number that appears most often in a data set. |
Range | The difference between the highest and lowest values in a data set. |
Controlled experiment | A scientific experiment that involves changing one factor and observing its effect on one thing while keeping all other things constant. |
Independent variable | The variable that is changed in an experiment. |
Dependent variable | The variable that changed as a result of a change in the independent variable. |
Scientific method | A series of steps that scientists use when performing an experiment. |
Hypothesis | An explanation that can be tested with a scientific investigation. |
Data | Information gathered during an investigation; recorded in the form of descriptions, tables, graphs, or drawings. |
Conclusion | A statement about whether or not the hypothesis is valid based on the data collected. |
Quantitative data | Descriptions of the natural world using numbers. |
Qualitative data | Descriptions of the natural world using words. |