| A | B |
|---|
| Variable | Any factor that can have more than one value |
| Constant | a factor in an experiment that does not change |
| Independent variable | The factor you want to change |
| Dependent variable | the factor you observe or measure in an experiment |
| Experimental group | Is used to study how a change in the independent variable changes the dependent variable |
| control group | Contains the same factors as the experimental group but the independent variable is not changed |
| qualitative data | Uses words to describe what is observed |
| Quantitative data | uses numbers to describe what is observed |
