| A | B |
|---|
| Science | The investigation and exploration of natural events and of the new information that results from those investigations |
| Earth science | The study of Earth’s major systems – the geosphere, the hydrosphere, the atmosphere, and the biosphere – and the interactions among them |
| Scientific method | Problem-solving procedure used by scientists to ensure reliable and repeatable results |
| Hypothesis | A possible explanation for an observation that can be tested by scientific investigations |
| Technology | The practical use of scientific knowledge, especially for industrial or commercial use |
| Scientific theory | An explanation of a natural phenomenon that is based on knowledge gained from many observations and investigations |
| Scientific law | A rule that describes a pattern in nature |
| Critical thinking | Comparing what you already know about something to new information and deciding whether or not you agree with the new information |
| International System of Units | The internationally accepted system of measurement |
| Significant digits | The number of digits in a measurement that are known with a certain degree of reliability |
| Variable | Any factor in an experiment that can have more than one value |
| Independent variable | The factor in an experiment that is changed by the scientist |
| Dependent variable | The factor in an experiment that is measured by the scientist |
| Control | A standard for comparison in an experiment |
| Constant | Factors that do not change in an experiment |
