| A | B |
| Constant | In an experiment, a factor that cannot change |
| Control | In an experiment, the standard for comparison |
| Critical Thinking | The process of using thinking skills to solve problems |
| Dependent Variable | In an experiment, the factor that is forced to change |
| Experiment | A controlled procedure for testing a hypothesis |
| Hypothesis | A proposed solution to a problem or explanation of how something works |
| Independent Variable | In an experiment, the factor changed to see what effect it will have |
| Model | A representation of an idea or process to make it understandable, using a diagram, formula, or physical structure |
| Observation | Using your senses to gather information |
| Physical Science | The study of matter and energy |
| Scientific Law | A rule that describes a pattern in nature and predicts what will happen under specific conditions |
| Technology | The application of scientific knowledge to improve the quality of human life |
| Theory | A former hypothesis that has been tested with repeated experiments and observations and found always to work |