| A | B |
| Scientific Method | An organized plan for gathering, organizing, and communicating information |
| Observations | Information you obtain through your senses. |
| Qualitative Observations | The type of observation you get when you use your senses to observe results. |
| Quantitative Observations | The type of observation in which you use an instrument to get a numerical or measureable observation. |
| Hypothesis | A proposed answer to a question. An educated guess. |
| Variable | Any factor in an experiment that can change. |
| Manipulated Variable | The variable that causes change in another variable. |
| Independent Variable | Also known as the manipulated variable. |
| Responding Variable | The variable that changes in response to the manipulated variable. |
| Dependent Variable | Also known as the responding variable. |
| Controlled Experiment | An experiment in which only one variable is deliberately changed at one time. |