| Term | Definition |
| Purpose | The problem you are solving in your experiment. It describes the reason for the experiment. |
| Hypothesis | A hypothesis is an educated guess about how things work: "If______(I do this)______, then_______(this)______ will happen." |
| Variables | The changing factors in an experiment. |
| Materials | Types of supplies and equipment you will need to complete your science fair project. |
| Procedure | A step-by-step recipe for your science experiment. |
| Conclusion | A summary of how your results support or contradict your original hypothesis. |
| Independent Variable | The chagnes an experimenter purposefully makes. |
| Dependent Variable | The response to the experimenter's purposeful changes. The effect. |
| Data and Results | A summary of the data you have collected (graphs, tables, charts, photos, etc.) |
| Conclusion | A summary of the solution to your problem. It may prove or disprove your hypothesis. |
| Application | The relevance of this experiment to the real world is explained. |