| A | B |
| ____ is a conclusion or understanding that is based on evidence about events that have already occurred or happened. | An inference |
| A(n) ____ is a clear description of exactly what is observed and nothing more. | Observation |
| A scientific ____ is a forecast about what may happen in some future situation and is based on facts. | Prediction/hypothesis |
| A(n) ____ is a fair test that is based on the hypothesis. | experiment |
| How do we know if a fair test was given? | A fair test is when only one variable is changed. |
| A ____ is the factor or part in an experiment that is changed. | Manipulated variable (independent variable) |
| A ____ is the factor or part in an experiment that changes as a result of the manipulated (independent) variable. | Responding variable (dependent variable) |